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sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use document id: pmc-2010883, issue 2 PM8611 sbslite telecom standard product data sheet preliminary issue 2: may 2001
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 1 document id: pmc-2010883, issue 2 legal information copyright ? 2001 pmc-sierra, inc. the information is proprietary and confidential to pmc-sierra, inc., and for its customers? internal use. in any event, you cannot reproduce any part of this document, in any form, without the express written consent of pmc-sierra, inc. pmc-2010883 (p1) disclaimer none of the information contained in this document constitutes an express or implied warranty by pmc-sierra, inc. as to the sufficiency, fitness or suitability for a particular purpose of any such information or the fitness, or suitability for a particular purpose, merchantability, performance, compatibility with other parts or systems, of any of the products of pmc-sierra, inc., or any portion thereof, referred to in this document. pmc-sierra, inc. expressly disclaims all representations and warranties of any kind regarding the contents or use of the information, including, but not limited to, express and implied warranties of accuracy, completeness, merchantability, fitness for a particular use, or non-infringement. in no event will pmc-sierra, inc. be liable for any direct, indirect, special, incidental or consequential damages, including, but not limited to, lost profits, lost business or lost data resulting from any use of or reliance upon the information, whether or not pmc-sierra, inc. has been advised of the possibility of such damage. trademarks sbslite, nse-20g, nse-8g, sbi, spectra, temux-84, aal1gator-32, and freedm-336 are trademarks of pmc-sierra, inc. s/uni is a registered trademark of pmc-sierra.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 2 document id: pmc-2010883, issue 2 contacting pmc-sierra pmc-sierra 8555 baxter place burnaby, bc canada v5a 4v7 tel: (604) 415-6000 fax: (604) 415-6200 document information: document@pmc-sierra.com corporate information: info@pmc-sierra.com technical support: apps@pmc-sierra.com web site: http://www.pmc-sierra.com
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 3 document id: pmc-2010883, issue 2 table of contents 1 features...................................................................................................................... .9 2 applications ............................................................................................................... 11 3 references ................................................................................................................12 4 application examples ................................................................................................13 5 block diagram ...........................................................................................................15 6 loopback configurations ...........................................................................................16 7 description.................................................................................................................17 8 pin diagram ...............................................................................................................19 9 pin description...........................................................................................................20 10 functional description ...............................................................................................34 10.1 sbi bus data formats ......................................................................................34 10.2 incoming sbi336 timing adapter......................................................................52 10.3 cas expanders.................................................................................................52 10.4 memory switch units ........................................................................................53 10.5 cas merging.....................................................................................................54 10.6 incoming sbi336 tributary translator...............................................................54 10.7 prbs processors .............................................................................................54 10.8 transmit 8b/10b encoders ...............................................................................55 10.9 transmit serializer ............................................................................................58 10.10 lvds transmitters ............................................................................................58 10.11 clock synthesis unit .........................................................................................58 10.12 transmit reference generator .........................................................................58 10.13 lvds receivers ................................................................................................59 10.14 data recovery units .........................................................................................59 10.15 receive 8b/10b decoders................................................................................59 10.16 outgoing sbi336s tributary translator ............................................................62 10.17 outgoing sbi336 timing adapter......................................................................63 10.18 in-band link controller......................................................................................63 10.19 microprocessor interface ..................................................................................66 11 normal mode register description............................................................................71 12 test features description........................................................................................240 12.1 master test and test configuration registers ................................................240 12.2 jtag test port ................................................................................................242 13 operation .................................................................................................................254
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 4 document id: pmc-2010883, issue 2 13.1 ?c1? synchronization.......................................................................................254 13.2 synchronized control setting changes ..........................................................255 13.3 switch setting algorithm .................................................................................260 13.4 jtag support..................................................................................................267 14 functional timing.....................................................................................................272 14.1 incoming sbi336 bus functional timing ........................................................272 14.2 incoming 77 mhz telecombus functional timing ..........................................273 14.3 transmit serial lvds functional timing ........................................................274 14.4 receive serial lvds functional timing .........................................................275 14.5 outgoing 77.76 mhz telecombus functional timing .....................................277 14.6 outgoing sbi336 functional timing ...............................................................277 15 absolute maximum ratings.....................................................................................279 16 d. c. characteristics................................................................................................280 17 microprocessor interface timing characteristics ....................................................281 18 a.c. timing characteristics .....................................................................................284 18.1 sbslite incoming bus timing.......................................................................284 18.2 sbslite receive bus timing ........................................................................285 18.3 sbslite outgoing bus timing.......................................................................286 18.4 sbslite transmit bus timing........................................................................287 18.5 jtag port interface.........................................................................................288 19 ordering and thermal information ..........................................................................289 19.1 ordering information .......................................................................................289 19.2 thermal information ........................................................................................289 20 mechanical information ...........................................................................................290
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 5 document id: pmc-2010883, issue 2 list of figures figure 1 oc-48 t1/e1 adm (individually drop/add any t1/e1 in sts-48)....................13 figure 2 oc-48 t1/e1 adm (drop/add up to sts-48 at sts-1 granularity) .................13 figure 3 any-service-any-port nxds0 tdm access solution........................................14 figure 4 any-service-any-port t1/e1 channelized phy card.......................................14 figure 5 sbslite block diagram ...................................................................................15 figure 6 loopback block diagram ..................................................................................16 figure 7 pin diagram (bottom view)...............................................................................19 figure 8 character alignment state machine .................................................................60 figure 9 frame alignment state machine.......................................................................62 figure 10 in-band signaling channel message format .................................................64 figure 11 in-band signaling channel header format ....................................................65 figure 12 input observation cell (in_cell) ................................................................252 figure 13 output cell (out_cell) ..............................................................................252 figure 14 bidirectional cell (io_cell) .........................................................................253 figure 15 layout of output enable and bidirectional cells...........................................253 figure 16 ?c1? synchronization control ........................................................................255 figure 17 temux-84?/sbslite?/nse/sbslite?/aal1gator-32? system ds0 switching with cas...............................................................................256 figure 18 cas multiframe timing .................................................................................257 figure 19 switch timing dsos with cas .....................................................................257 figure 20 temux-84/sbslite/nse/sbslite/freedm-336 system ds0 switching no cas .........................................................................................258 figure 21 switch timing - dsos without cas ..............................................................259 figure 22 non ds0 switch timing ................................................................................260 figure 23 example graph .............................................................................................262 figure 24 time:space:time switching in one nse-20g and four single-ported sbss .............................................................................................................263 figure 25 example graph .............................................................................................264 figure 26 example problem..........................................................................................265 figure 27 merged graph ...............................................................................................265 figure 28 relabeled graph ...........................................................................................266 figure 29 boundary scan architecture .........................................................................268 figure 30 tap controller finite state machine.............................................................269 figure 31 incoming sbi336 functional timing .............................................................272 figure 32 incoming 77 mhz telecombus functional timing .......................................274
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 6 document id: pmc-2010883, issue 2 figure 33 incoming telecombus to lvds functional timing ......................................274 figure 34 incoming sbi bus to lvds timing with ds0 switching ...............................275 figure 35 receive lvds link timing ...........................................................................276 figure 36 outgoing synchronization timing .................................................................276 figure 37 outgoing 77.76 mhz telecombus functional timing ..................................277 figure 38 outgoing sbi336 functional timing .............................................................278 figure 39 microprocessor interface read timing .........................................................281 figure 40 microprocessor interface write timing .........................................................283 figure 41 sbslite incoming timing ............................................................................285 figure 42 sbslite receive timing..............................................................................286 figure 43 sbslite outgoing timing ............................................................................287 figure 44 sbslite transmit timing.............................................................................287 figure 45 jtag port interface timing...........................................................................288 figure 46 160 pin pbga 15 x 15 mm body..................................................................290
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 7 document id: pmc-2010883, issue 2 list of tables table 1 structure for carrying multiplexed links ............................................................35 table 2 t1/tvt1.5 tributary column numbering ...........................................................35 table 3 e1/tvt2 tributary column numbering..............................................................36 table 4 t1/e1 link rate information...............................................................................37 table 5 t1/e1 clock rate encoding ...............................................................................37 table 6 ds3/e3 link rate information............................................................................38 table 7 ds3/e3 clock rate encoding ............................................................................38 table 8 t1 framing format.............................................................................................39 table 9 t1 channel associated signaling bits ...............................................................41 table 10 e1 framing format ..........................................................................................42 table 11 e1 channel associated signaling bits .............................................................44 table 12 ds3 framing format........................................................................................45 table 13 ds3 block format ............................................................................................45 table 14 ds3 multi-frame stuffing format......................................................................45 table 15 e3 framing format ..........................................................................................46 table 16 e3 frame stuffing format ................................................................................47 table 17 transparent vt1.5/tu11 format .....................................................................48 table 18 transparent vt2/tu12 format ........................................................................49 table 19 fractional rate format.....................................................................................51 table 20 structure for carrying multiplexed links in sbi336..........................................52 table 21 sbi336s character encoding ..........................................................................55 table 22 serial telecombus character encoding ..........................................................57 table 23 in-band message header fields ......................................................................65 table 24 test mode register memory map ..................................................................240 table 25 instruction register (length - 3 bits) ..............................................................242 table 26 identification register.....................................................................................243 table 27 boundary scan register ................................................................................244 table 28 absolute maximum ratings............................................................................279 table 29 d.c characteristics ........................................................................................280 table 30 microprocessor interface read access (figure 39).......................................281 table 31 microprocessor interface write access (figure 40) .......................................283 table 32 sbslite incoming timing (figure 41) ..........................................................284 table 33 sbslite receive timing (figure 42) ............................................................285 table 34 sbslite outgoing timing (figure 43) ..........................................................286
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 8 document id: pmc-2010883, issue 2 table 35 sbslite transmit timing (figure 44) ...........................................................287 table 36 jtag port interface (figure 45) .....................................................................288
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 9 document id: pmc-2010883, issue 2 1 features ? the PM8611 sbi336 bus serializer (sbslite?) is a: scalable bandwidth interconnect (sbi?) converter and time division multiplexer (tdm) sbi switch. byte-wide 77.76 mhz sbi336 bus to 777.6 mhz serial sbi336s converter. ds0, nxds0, t1, e1, tvt1.5, tvt2, ds3 and e3 granular sbi336 to serial sbi336s switch. supports subrate link switching with the restriction that subrate links must be symmetric in both the transmit and receive directions. byte-wide 77.76 mhz telecombus to serial 777.6 mhz telecombus converter. this requires the telecombus j1 byte to be in a fixed location corresponding to a value of 0 or 522 which is immediately following the c1 octets: vt1.5, vt2, sts-1 77.76 mhz telecombus to serial telecombus switch. ? can be used with the narrowband switch elements, nse-20g, to implement a ds0 granularity sbi memory:space:memory switch scalable to 20 gbit/s and nse-8g, to implement a switch scalable to 8 gbit/s. in telecombus mode, a 20 gbit/s vt1.5/vt2 granularity memory:space:memory switch can be implemented. ? integrates two independent ds0 granularity memory switches. one switch is placed between the incoming 77.76 mhz byte-wide sbi336 bus and the transmit working and protect serial sbi336s link. the transmit working and protect links transmit the same data. the other switch is placed between the receive working or protect serial sbi336s link and the outgoing 77.76 mhz byte-wide sbi336 bus. ? provides 125 s nominal latency in ds0 mode. channel associated signaling (cas) latency through the sbslite in ds0 mode is two t1 multiframe (6 ms) or two e1 multiframe (4 ms). ? provides less than 16 s nominal latency in telecombus mode or sbi mode without ds0 level switching. ? permits any receive or incoming byte from an input port to be mapped to any outgoing or transmit byte, respectively, on the associated output port through the memory switch. ? supports redundant working and protect serial sbi336s links in support of a redundant memory:space:memory switch with the nse. ? encodes and decodes byte-wide sbi336 bus control signals for all sbi supported link types and clock modes for transport over the serial sbi336s interface. ? encodes data from the incoming sbi336 bus or telecombus stream to a working and protect 777.6 mbit/s lvds serial links with 8b/10b-based encoding. ? decodes data from a working and protect 777.6 mhz low voltage differential serializer (lvds) serial links with 8b/10b-based encoding to the outgoing sbi336 bus or telecombus stream. ? in sbi mode, switches cas bits with all ds0 data.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 10 document id: pmc-2010883, issue 2 ? uses 8b/10b-based line coding protocol on the serial links to provide transition density guarantee and dc balance and to offer a greater control character vocabulary than the standard 8b/10b protocol. ? provides optional pseudo-random bit sequence (prbs) generation for each outgoing lvds serial data link for off-line link verification. prbs can be inserted with sts-1 granularity. ? provides prbs detection for each incoming lvds serial link for off-line link verification. prbs is verified with sts-1 granularity. ? provides pins to coordinate updating of the connection map of the memory switch blocks in the local device, peer sbslite devices and companion nse switch device. ? can communicate with the nse switch device over an in-band communications channel in the lvds links. this channel includes mechanisms for central control and configuration. ? derives all internal timing from a single 77.76 mhz system clock to a system frame pulse. ? implemented in 1.8 v/3.3 v 0.18 m cmos and packaged in a 160 ball 15 mm x 15 mm pbga. ? consumes low power at 1.4 w.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 11 document id: pmc-2010883, issue 2 2 applications ? t1/e1 sonet/sdh cross-connects ? t1/e1 sonet/sdh add-drop multiplexers ? oc-48 multiservice access multiplexers ? channelized oc-12/oc-48 any service any port switches ? serial backplane board interconnect ? shelf to shelf cabled serial interconnect ? voice gateways
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 12 document id: pmc-2010883, issue 2 3 references 1. ieee 802.3, ?carrier sense multiple access with collision detection (csma/cd) access method and physical layer specifications?, section 36.2, 1998. 2. a.x. widmer and p.a. franaszek, ?a dc-balanced, partitioned-block, 8b/10b transmission code,? ibm journal of research and development, vol. 27, no 5, september 1983, pp 440- 451. 3. u.s. patent no. 4,486,739, p.a. franaszek and a.x. widmer, ?byte oriented dc balanced (0,4) 8b/10b partitioned block transmission code,? december 4, 1984. 4. telcordia - sonet transport systems: common generic criteria, gr-253-core, issue 2, revision 2, january 1999. 5. itu, recommendation g.707 - "digital transmission systems ? terminal equipments - general", march 1996. 6. itu, recommendation o.151 ? ?error performance measuring equipment operating at the primary rate and above", october 1992.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 13 document id: pmc-2010883, issue 2 4 application examples figure 1 and figure 2 show a PM8611 sbi336 bus serializer-lite (sbslite) connected to a telecombus to implement a t1 or e1 add/drop function. when connected to the telecombus, the sbslite with a pm8620 or pm8621 narrowband switching element (nse-8g? or nse- 20g?) implements a t1/e1 memory:space:memory switch. the sbslite requires all path pointer justifications to be translated into tributary pointer movements so that j1 is fixed to the location following c1 or h3. in both examples j1 alignment is performed with the tupp-622. switching within the sbslite and nse is utilizing the transparent virtual tributary, tvt, mapping across the serial sbi336s lvds links. figure 1 oc-48 t1/e1 adm (individually drop/add any t1/e1 in sts-48) spectra- 2488 4 x tupp- 622 nse 4 x tupp- 622 spectra- 2488 sbs 1 x temap -84 11 x octliu 4 x sbslite 4 x sbslite figure 2 oc-48 t1/e1 adm (drop/add up to sts-48 at sts-1 granularity) spectra- 2488 4 x tupp- 622 spectra- 2488 tbs tbs tbs nse temux84 temux84 temux84 temux84 temux84 temux84 temux84 temux84 temux84 temux84 temux84 temux84 temux84 temux84 temux84 temux84 4 x sbslite 4 x sbslite 4 x sbslite 4 x sbslite 4 x sbslite
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 14 document id: pmc-2010883, issue 2 figure 3 and figure 4 show examples of the sbs and sbslite when used to implement high density t1/e1 channelized physical interface cards and nxds0 multiservice access cards also using sbs and nse devices. ds0, nxds0, t1, e1, transparent vts, e3, ds3 and subrate rate links can be switched between the physical layer and layer 2 devices using the sbs, sbslite and nse devices. figure 3 any-service-any-port nxds0 tdm access solution sbs freedm- 336 sbs sbs 4 x ima-84 12 x aal1gator- 32 11 x octliu dsp processors serial clock and data nse any-phy (packet) any-phy (cell) any-phy (cell) 4 x sbslite figure 4 any-service-any-port t1/e1 channelized phy card 4 x temux-84 nse 4 x temux-84 4 x temux-84 4 x temux-84 tbs tbs tbs tbs tbs spectra- 2488 4 x sbslite 4 x sbslite 4 x sbslite 4 x sbslite
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 15 document id: pmc-2010883, issue 2 5 block diagram figure 5 sbslite block diagram outgoing sbi tributary translator (ostt) clock synthesis unit tpwrk tnwrk incoming memory switch unit (imsu) tx ref tpprot tnprot transmit working lvds interface (twlv) transmit protect lvds interface (tplv) receive working lvds interface (rwlv) receive protect lvds interface (rplv) working data recovery unit (wdru) protect data recovery unit (pdru) transmit working serializer (twps) transmit protect serializer (tpps) receive working 8b/10b decoder (rw8d) receive protect 8b/10b decoder (rp8d) srefclk rpwrk rnwrk rpprot rnprot odata[7:0] idata[7:0] idp ipl iv5 just_req opl odp ov5 rc1fp oc1fp rwsel tc1fp icmp incoming sbi tributary translator (istt) ic1fp transmit working 8b/10b encoder (tw8e) transmit protect 8b/10b encoder (tp8e) itpl incoming cas expand (icase) incoming cas merge (icasm) ouser outgoing sbi336 timing adaptor (osta) itais otpl otais incoming sbi336 timing adaptor (ista) 1/2 working in-band link controller (wilc) 1/2 protect in-band link controller (pilc) 1/2 working prbs processor (wpp) 1/2 protect prbs processor (ppp) 1/2 working in-band link controller (wilc) 1/2 protect in-band link controller (pilc) 1/2 working prbs processor (wpp) 1/2 protect prbs processor (ppp) outgoing memory switch unit (omsu) outgoing cas expand (ocase) outgoing cas merge (ocasm) sysclk ocmp iuser jtag trstb tck tms tdi tdo microprocessor interface a[8:0] d[15:0] rstb csb wrb rdb ale intb
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 16 document id: pmc-2010883, issue 2 6 loopback configurations figure 6 loopback block diagram outgoing sbi tributary translator (ostt) clock synthesis unit tpwrk tnwrk incoming memory switch unit (imsu) tx ref tpprot tnprot transmit working lvds interface (twlv) transmit protect lvds interface (tplv) receive working lvds interface (rwlv) receive protect lvds interface (rplv) working data recovery unit (wdru) protect data recovery unit (pdru) transmit working serializer (twps) transmit protect serializer (tpps) receive working 8b/10b decoder (rw8d) receive protect 8b/10b decoder (rp8d) srefclk rpwrk rnwrk rpprot rnprot odata[7:0] idata[7:0] idp ipl iv5 just_req opl odp ov5 rc1fp oc1fp rwsel tc1fp icmp incoming sbi tributary translator (istt) ic1fp transmit working 8b/10b encoder (tw8e) transmit protect 8b/10b encoder (tp8e) itpl incoming cas expand (icase) incoming cas merge (icasm) ouser outgoing sbi336 timing adaptor (osta) itais otpl otais incoming sbi336 timing adaptor (ista) 1/2 working in-band link controller (wilc) 1/2 protect in-band link controller (pilc) 1/2 working prbs processor (wpp) 1/2 protect prbs processor (ppp) 1/2 working in-band link controller (wilc) 1/2 protect in-band link controller (pilc) 1/2 working prbs processor (wpp) 1/2 protect prbs processor (ppp) outgoing memory switch unit (omsu) outgoing cas expand (ocase) outgoing cas merge (ocasm) sysclk ocmp iuser jtag trstb tck tms tdi tdo microprocessor interface a[8:0] d[15:0] rstb csb wrb rdb ale intb
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 17 document id: pmc-2010883, issue 2 7 description the PM8611 sbi336 bus serializer, sbslite, is a monolithic integrated circuit that implements conversion between a byte-serial 77.76 mhz sbi336 bus and redundant 777.6 mbit/s bit-serial 8b/10b-base sbi336s bus. in telecombus mode, the sbslite implements conversion between a 77.76 mhz telecombus format and a redundant 777.6 mbit/s bit-serial 8b/10b-base serial telecombus format. in line with the bus conversion is a ds0 granular switch allowing any input ds0 to be output on any output ds0. the sbslite can be used to connect and switch high density t1/e1 framer devices supporting an sbi bus with link layer devices supporting an sbi bus over a serial backplane. putting a narrowband switch element (nse) between the framer and link layer devices allows construction of up to 20 gbit/s nxds0 switches. in the ingress direction, the sbslite connects an incoming 77.76 mhz sbi336 stream to a pair of redundant serial sbi336s lvds links through a ds0 memory switch. in telecombus mode, an incoming 77.76 mhz telecombus that has the j1 path fixed and all high order pointer justifications converted to tributary pointer justifications can be switched through a vt granular switch to a pair of redundant serial lvds telecombus format links. the incoming data is encoded into an extended set of 8b/10b characters and transferred onto two redundant 777.6 mbit/s serial lvds links. sbi or telecombus frame boundaries, pointer justification events and master timing controls are marked by 8b/10b control characters. incoming synchronized payload envelopes (spes) may be optionally overwritten with the locally generated x 23 + x 18 + 1 prbs pattern for diagnosis of downstream equipment. the prbs processor is configurable to handle any combination of spes and can be inserted independently into either of the redundant lvds links. a ds0 memory switch provides arbitrary mapping of streams on the incoming sbi336 bus stream to the working and protect lvds links at ds0 granularity. in telecombus mode, a vt1.5/vt2 memory switch provides arbitrary mapping of tributaries on the incoming telecombus stream to the working and protect lvds links. multi-cast is supported. in the egress direction, the sbslite connects two independent 777.6 mbit/s serial lvds links to an outgoing sbi336 bus. each link contains a constituent sbi336s stream. bytes on the links are carried as 8b/10b characters. the sbslite decodes the characters into data and control signals for a single 77.76 mhz sbi336 bus. alternatively the sbslite decodes two independent 777.6 mbit/s telecombus formatted serial lvds links characters into a single 77.76 mhz telecombus. a prbs processor is provided to monitor the decoded payload for the x 23 + x 18 + 1 pattern in each spe. the prbs processor is configurable to handle any combination of synchronized payload envelopes (spes) in the serial lvds link. data on the outgoing sbi336 bus stream may be sourced from either of the lvds links. an in-band signaling link over the serial lvds links allows this device to be controlled by a companion switching device, the narrowband switching element, pm8620 nse-20g. this link can be used as communication link between a central processor and the local microprocessor.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 18 document id: pmc-2010883, issue 2 two loopbacks are provided on the sbslite. the transmit 8b/10b-to-receive 8b/10b loopback allows data entering on the incoming bus to be looped back from the output of the tw8e and tp8e to the input of the rw8d and rp8d, respectively. only the data looped back on the active link (working or protection) will make it back to the outgoing bus. the transmit-to-receive loopback allows data entering on the incoming bus to be looped back from the output of the icasm to the input of the ocase and then returned to the outgoing bus.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 19 document id: pmc-2010883, issue 2 8 pin diagram the sbslite is packaged in a 160-pin pbga package having a body size of 15 mm by 15 mm and a ball pitch of 1 mm. figure 7 pin diagram (bottom view) 14 13 12 11 10 9 8 7 6 5 4 3 2 1 a dvddo sysclk dvddi vss dvddo otpl vss odata[4] dvddi odata[0] dvddo dvddo a b idata[0] vss srefclk vss icmp vss ov5 odata[6] vss odata[2] vss vss resk vss b c idata[3] idata[1] idata[2] vss dvddq oc1fp dvddo odata[7] dvddo vss odp tc1fp res avdh c d idata[6] idata[4] idata[5] ocmp vss opl otais odata[5] odata[3] odata[1] avdh vss tnprot tpprot d e idp dvddo vss idata[7] vss avdh tpwrk tnwrk e f ipl iv5 ic1fp itpl atb0 atb1 rpwrk rnwrk f g vss dvddi intb itais gnd gnd avdl vss rpprot rnprot g h dvddo tck tdo vss gnd gnd avdl avdq vss csu_avd h h j tdi dvddq trstb tms avdl avdl vss vss j k ouser2 nc just_re q vss vss vss dvddi vss k l a[1] dvddi vss a[0] d[2] d[6] vss vss d[10] iuser2 d[15] vss ale dvddi l m a[2] a[3] a[6] d[0] d[4] vss d[8] vss d[11] vss dvddo wrb csb rdb m n a[4] a[5] vss a[8] d[3] dvddo d[7] d[9] d[13] d[14] rc1fp rwsel dvddo dvddo n p dvddo a[7] d[1] d[5] dvddi dvddq dvddo d[12] dvddi vss rstb vss p 14 13 12 11 10 9 8 7 6 5 4 3 2 1
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 20 document id: pmc-2010883, issue 2 9 pin description pin name type pin no. function receive serial data interface (5 signals) rpwrk rnwrk analog lvds input f2 f1 receive working serial data. in sbi336 mode, the differential receive working serial data link (rpwrk/rnwrk) carries the receive 77.76 mhz sbi336 data from an upstream working source, in bit serial format, sbi336s. in telecombus mode, rpwrk/rnwrk carries the receive 77.76 mhz telecombus from an upstream working source, in bit serial format. data on rpwrk/rnwrk is encoded in an 8b/10b format extended from ieee std. 802.3. the 8b/10b character bit ?a? is transmitted first and the bit ?j? is transmitted last. rpwrk/rnwrk are nominally 777.6 mbit/s data streams. rpprot rnprot analog lvds input g2 g1 receive protect serial data. in sbi336 mode, the differential receive protect serial data link (rpprot/rnprot) carries the receive 77.76 mhz sbi336 data from an upstream protect source, in bit serial format, sbi336s. in telecombus mode, rpprot/rnprot carries the receive 77.76 mhz telecombus from an upstream protection source, in bit serial format. data on rpprot/rnprot is encoded in an 8b/10b format extended from ieee std. 802.3. the 8b/10b character bit ?a? is transmitted first and the bit ?j? is transmitted last. rpprot/rnprot are nominally 777.6 mbit/s data streams. rc1fp input n4 receive serial frame pulse. the receive serial sbi336s frame pulse signal (rc1fp) provides system timing of the receive serial interface. when using the receive serial interface, rc1fp is set high once every multiframe (4 frames for sbi without cas, 48 frames for sbi with cas, and 4 frames for telecombus), or multiple thereof. the rc1fp_dly[13:0] bits (register 007h) are used to align the c1 frame boundary 8b/10b character on the receive serial interface (rpwrk/rnwrk and rpprot/rnprot) with rc1fp. rc1fp is sampled on the rising edge of sysclk.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 21 document id: pmc-2010883, issue 2 pin name type pin no. function outgoing sbi bus (68 signals) oc1fp tristate output c9 outgoing c1 frame pulse (oc1fp). this signal indicates the first c1 octet on the outgoing sbi or telecombus. in sbi336 mode: this signal also indicates multiframe alignment which occurs every 4 frames, therefore this signal is pulsed every fourth c1 octet to produce a 2 khz multiframe signal. when using the sbi bus in synchronous mode the oc1fp signal indicates t1 and e1 signaling multiframe alignment by pulsing on 48 sbi frame boundaries. this must be done if cas is to be switched along with the data. in telecombus mode: this signal may also be pulsed to indicate the j1 byte position and the byte following j1. the j1 byte position is locked to an offset of either 0 or 522. the byte following j1 is used to indicate multiframe alignment and is only pulsed once every 4 frames marking the frame with the v1s. oc1fp is updated on the rising edge of srefclk. odata[7] odata[6] odata[5] odata[4] odata[3] odata[2] odata[1] odata[0] tristate output c7 b7 d7 a6 d6 b5 d5 a4 outgoing data (odata[7:0]). the outgoing data buse, odata[7:0], is a time division multiplexed buses which transport tributaries by assigning them to fixed octets within the sbi or telecombus structure. odata[7:0] are updated on the rising edge of srefclk. odp tristate output c4 outgoing bus data parity (odp). the outgoing data parity signal carries the even or odd parity for the outgoing bus. in sbi336 modes, the parity calculation for odp encompasses the odata[7:0], opl and ov5 signals. in telecombus mode, the parity calculation encompasses the odata[7:0] and optionally the oc1fp and opl signals. odp is updated on the rising edge of srefclk.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 22 document id: pmc-2010883, issue 2 pin name type pin no. function opl tristate output d9 outgoing bus payload (opl). the outgoing payload signal, opl, indicates valid tributary data within the sbi bus. in telecombus mode, this signal indicates valid path payload. in sbi336 mode: this active high signal is asserted during all octets making up a tributary which includes all octets shaded grey in the framing format tables. this signal goes high during the v3 or h3 octet within a tributary to accommodate negative timing adjustments between the tributary rate and the fixed sbi bus structure. this signal goes low during the octet after the v3 or h3 octet within a tributary to accommodate positive timing adjustments between the tributary rate and the fixed sbi bus structure. for fractional rate links this signal indicates that the current octet is carrying valid data when high. in locked tvt mode, this signal must be driven in the same manner as for floating tvts. in telecombus mode: this signal distinguishes between transport overhead bytes and synchronous payload bytes. opl is set high to mark each payload byte on odata[7:0] and is set low to mark each transport overhead byte. opl is updated on the rising edge of srefclk. ov5 tristate output b8 outgoing bus payload indicator (ov5). the active high signal, ov5, locates the position of the floating payload for each tributary within the outgoing sbi336 or telecombuses. in sbi336 mode: this active high signal locates the position of the floating payloads for each tributary within the sbi336 structure. timing differences between the port timing and the bus timing are indicated by adjustments of this payload indicator relative to the fixed bus structure. all movements indicated by this signal must be accompanied by appropriate adjustments in the opl signal. in locked tvt mode or fractional rate link mode this signal may be driven but must be ignored by the receiving device. in telecombus mode: this signal identifies tributary payload frame boundaries on the outgoing data bus. ov5 is set high to mark the v5 bytes on the bus. ov5 is updated on the rising edge of srefclk.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 23 document id: pmc-2010883, issue 2 pin name type pin no. function just_req bidir k12 shared bus justification request (just_req). the sbi bus justification request signal, just_req, is used to speed up, slow down or maintain the minimal rate of a slave timed sbi device. when the sbslite is configured to be connected to a physical layer device, just_req is an input aligned with the incoming bus. when the sbslite is configured to be connected to a link layer device, just_req is an output aligned with the outgoing bus. this active high signal, just_req, indicates negative timing adjustments on the sbi bus when asserted high during the v3 or h3 octet, depending on the tributary type. in response to this the slave timed sbi device should send an extra byte in the v3 or h3 octet of the next frame along with a valid payload signal indicating a negative justification. this signal indicates positive timing adjustments on the corresponding sbi bus when asserted high during the octet following the v3 or h3 octet, depending on the tributary type. the slave timed sbi device should respond to this by not sending an octet during the v3 or h3 octet of the next frame along with a valid payload signal indicating a positive justification. for fractional rate links this signal is asserted high during any available information byte to indicate to the slave timed sbi device that the timing master device is able to accept another byte of data. for every byte that this signal is asserted high the slave device is expected to send a valid byte of data. just_req[1] (continued) all timing adjustments from the slave timed device in response to the justification request must still set the payload and payload indicators appropriately for timing adjustments. just_req is not used when configured for telecombus mode. just_req is asserted or sampled on the rising edge of srefclk. otpl tristate output a8 outgoing tributary payload (otpl). this signal is used to indicate tributary payload when configured for telecombus and is held low when configured for an sbi336 bus. otpl is set high during valid vc11 and vc12 bytes of the outgoing bus. otpl is set low for all transport overhead bytes, high order path overhead bytes, fixed stuff column bytes and tributary transport overhead bytes (v1,v2,v3,v4). otpl is updated on the rising edge of srefclk. otais tristate output d8 outgoing tributary alarm indication signal (otais). this signal indicates tributaries in low order path ais state for the outgoing telecombus and is held low when configured for an sbi336 bus. otais is set high when the tributary on the outgoing bus is in ais state and is set low when the tributary is out of ais state. otais is updated on the rising edge of srefclk.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 24 document id: pmc-2010883, issue 2 pin name type pin no. function incoming sbi bus (56 signals) ic1fp input f12 incoming c1 frame pulse (ic1fp). this signal indicates the first c1 octet on the incoming sbi336 or telecombus. in sbi336 mode: this signal also indicates multiframe alignment which occurs every 4 frames, therefore this signal is pulsed every fourth c1 octet to produce a 2 khz multiframe signal. the frame pulse does not need to be repeated every 2 khz as the sbslite will flywheel in its absence. when using the sbi bus in synchronous mode the ic1fp signal can be used to indicate t1 and e1 multiframe alignment by pulsing on 48 sbi frame boundaries. this must be done if cas is to be switched along with the data. in telecombus mode: this signal may also be pulsed to indicate the j1 byte position and the byte following j1. the j1 byte position must be locked to an offset of either 0 or 522. the byte following j1 is used to indicate multiframe alignment and should only pulse once every 4 frames marking the frame with the v1s. ic1fp is sampled on the rising edge of srefclk. idata[7] idata[6] idata[5] idata[4] idata[3] idata[2] idata[1] idata[0] input e11 d14 d12 d13 c14 c12 c13 b14 incoming bus data (idata[7:0]). the incoming data bus, idata[7:0], is a time division multiplexed buses which transports tributaries by assigning them to fixed octets within the sbi336 or telecombus structure. multiple sbi336 devices can drive this bus at uniquely assigned tributary columns within the sbi/sbi336 bus structure. idata[7:0] is sampled on the rising edge of srefclk. idp input e14 incoming bus data parity (idp). the incoming data parity signal carries the even or odd parity for the incoming bus. in sbi336 modes, the parity calculation encompasses the idata[7:0], ipl and iv5 signals. in telecombus mode, the parity calculation encompasses the idata[7:0] and optionally the ic1fp and ipl signals. multiple sbi336 devices can drive this signal at uniquely assigned tributary columns within the sbi336 bus structure. this parity signal is intended to detect multiple sources in the column assignment. idp is sampled on the rising edge of srefclk.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 25 document id: pmc-2010883, issue 2 pin name type pin no. function ipl input f14 incoming bus payload (ipl). the ipl signal indicates valid tributary data within the sbi336 bus. in telecombus mode, this signal indicates valid path payload. in sbi336 mode: this active high signal is asserted during all octets making up a tributary which includes all octets shaded grey in the framing format tables. this signal goes high during the v3 or h3 octet within a tributary to accommodate negative timing adjustments between the tributary rate and the fixed sbi336 structure. this signal goes low during the octet following the v3 or h3 octet within a tributary to accommodate positive timing adjustments between the tributary rate and the fixed sbi336 structure. for fractional rate links this signal indicates that the current octet is carrying valid data when high. multiple sbi336 devices can drive this signal at uniquely assigned tributary columns within the sbi336 structure. for locked tvts, this signal must be driven in the same manner as for floating tvts. in telecombus mode: this signal distinguishes between transport overhead bytes and the synchronous payload bytes. ipl is set high to mark each payload byte on idata[7:0] and is set low to mark each transport overhead byte.. ipl is sampled on the rising edge of srefclk. iv5 input f13 incoming bus payload indicator (iv5). this signal locates the position of the floating payload for each tributary of the incoming sbi336 or telecombuses. in sbi336 mode: this active high signal locates the position of the floating payloads for each tributary within the sbi336 structure. timing differences between the port timing and the bus timing are indicated by adjustments of this payload indicator relative to the fixed bus structure. all movements indicated by this signal must be accompanied by appropriate adjustments in the ipl signal. multiple sbi336 devices can drive this signal at uniquely assigned tributary columns within the sbi336 structure. for locked tvts, this signal must either be driven in the same manner as for floating tvts or held low. in telecombus mode: this signal identifies tributary payload frame boundaries on the incoming data bus. iv5 is set high to mark the v5 bytes on the bus. iv5 is sampled on the rising edge of srefclk.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 26 document id: pmc-2010883, issue 2 pin name type pin no. function itpl input f11 incoming tributary payload (itpl). this signal is used to indicate tributary payload when configured for telecombus and is unused when configured for an sbi336 bus. itpl is set high during valid vc11 and vc12 bytes of the incoming bus. itpl is set low for all transport overhead bytes, high order path overhead bytes, fixed stuff column bytes and tributary transport overhead bytes (v1,v2,v3,v4). itpl is sampled on the rising edge of srefclk. itais input g11 incoming tributary alarm indication signal (itais). this signal indicates tributaries in low order path ais state for the incoming telecombus and is unused when configured for an sbi336 bus. itais is set high when the tributary on the incoming bus is in ais state and is set low when the tributary is out of ais state. itais is sampled on the rising edge of srefclk. transmit serial data interface (5 signals) tpwrk tnwrk analog lvds output e2 e1 transmit working serial data. in sbi336 mode, the differential transmit working serial data link (tpwrk/tnwrk) carries a transmit 77.76 mhz sbi336 data stream to a downstream working sink, in bit serial format, sbi336s. in telecombus mode, tpwrk/tnwrk carries the transmit 77.76 mhz telecombus data stream to a downstream working sink, in bit serial format. data on tpwrk/tnwrk is encoded in an 8b/10b format extended from ieee std. 802.3. the 8b/10b character bit ?a? is transmitted first and the bit ?j? is transmitted last. tpwrk/tnwrk are nominally 777.6 mbit/s data streams. tpprot tnprot analog lvds output d1 d2 transmit protect serial data. in sbi336 mode, the differential transmit protect serial data link (tpprot/tnprot) carries a transmit 77.76 mhz sbi336 data stream to a downstream protect sink, in bit serial format, sbi336s. in telecombus mode, tpprot/tnprot carries the transmit 77.76 mhz telecombus data stream to a downstream protection sink, in bit serial format. data on tpprot/tnprot is encoded in an 8b/10b format extended from ieee std. 802.3. the 8b/10b character bit ?a? is transmitted first and the bit ?j? is transmitted last. tpprot/tnprot are nominally 777.6 mbit/s data streams. tc1fp output c3 transmit serial sbi frame pulse. the transmit serial sbi frame pulse signal (tc1fp) provides system timing of the transmit serial interface. tc1fp is set high to indicate that the c1 frame boundary 8b/10b character has been serialized out on the transmit working serial data link (tpwrk/tnwrk) and the transmit protection serial data link (tpprot/ tnprot). tc1fp is output every 4 frame for sbi mode without cas and for telecombus mode. tc1fp is output every 48 frames for sbi mode with cas. tc1fp is updated on the rising edge of sysclk.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 27 document id: pmc-2010883, issue 2 pin name type pin no. function microprocessor interface (30 signals) csb input m2 chip select bar. the active low chip select signal (csb) controls microprocessor access to registers in the sbslite device. csb is set low during sbslite microprocessor interface port register accesses. csb is set high to disable microprocessor accesses. if csb is not required (i.e. register accesses controlled using rdb and wrb signals only), csb should be connected to an inverted version of the rstb input. rdb input m1 read enable bar. the active low read enable bar signal (rdb) controls microprocessor read accesses to registers in the sbslite device. rdb is set low and csb is also set low during sbslite microprocessor interface port register read accesses. the sbslite drives the d[15:0] bus with the contents of the addressed register while rdb and csb are low. wrb input m3 write enable bar. the active low write enable bar signal (wrb) controls microprocessor write accesses to registers in the sbslite device. wrb is set low and csb is also set low during sbslite microprocessor interface port register write accesses. the contents of d[15:0] are clocked into the addressed register on the rising edge of wrb while csb is low. d[15] d[14] d[13] d[12] d[11] d[10] d[9] d[8] d[7] d[6] d[5] d[4] d[3] d[2] d[1] d[0] i/o l4 n5 n6 p6 m6 l6 n7 m8 n8 l9 p10 m10 n10 l10 p11 m11 microprocessor data bus. the bi-directional data bus, d[15:0] is used during sbslite microprocessor interface port register reads and write accesses. d[15] is the most significant bit of the data words and d[0] is the least significant bit. a[8]/trs a[7] a[6] a[5] a[4] a[3] a[2] a[1] a[0] input n11 p12 m12 n13 n14 m13 m14 l14 l11 microprocessor address bus. the microprocessor address bus (a[8:0]) selects specific microprocessor interface port registers during sbslite register accesses. a[8] is also the test register select (trs) address pin and selects between normal and test mode register accesses. trs is set high during test mode register accesses, and is set low during normal mode register accesses. ale input l2 address latch enable. the address latch enable signal (ale) is active high and latches the address bus (a[11:0]) when it is set low. the internal address latches are transparent when ale is set high. ale allows the sbslite to interface to a multiplexed address/data bus. ale has an integral pull up resistor.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 28 document id: pmc-2010883, issue 2 pin name type pin no. function intb open drain output g12 interrupt request bar . the active low interrupt enable signal (intb) output goes low when an sbslite interrupt source is active and that source is unmasked. intb returns high when the interrupt is acknowledged via an appropriate register access. intb is an open drain output. general function (9 signals) sysclk input a12 sbi system clock. the 77 mhz sbi reference clock signal, sysclk, is the master clock for the sbslite device. sysclk is a 77.76 mhz clock, with a nominal 50% duty cycle. rc1fp, ocmp and rwsel are sampled on the rising edge of sysclk. tc1fp is updated on the rising edge of sysclk. srefclk input b12 sbi reference clock. the sbi reference clock, srefclk, is a reference for the incoming and outgoing sbi bus and telecombus interfaces. srefclk is a 77.76 mhz clock with a nominal 50% duty cycle. ic1fp, idata[7:0], idp, ipl, iv5, itpl, itais, just_req and icmp are sampled on the rising edge of srefclk. oc1fp, odata[7:0], odp, opl, ov5, otpl, otais and just_req are updated on the rising edge of sysclk. this signal should be tied to sysclk. icmp input b10 incoming connection memory page. the incoming connection memory page select signal, icmp, controls the selection of the connection memory page in the incoming memory switch unit, imsu. when icmp is set high, connection memory page 1 is selected. when icmp is set low, connection memory page 0 is selected. the byte location during which icmp is sampled is dependant on the mode of operation. 4-frame sbi336 mode: icmp is sampled at the c1 byte position of the incoming bus on the first frame of the 4-frame multiframe (marked by ic1fp). changes to the connection memory page selection is synchronized to the frame boundary of the next four frame multiframe. 48-frame sbi336 mode: icmp is sampled at the c1 byte position of the incoming bus on the first frame of the 48-frame multiframe (marked by ic1fp). changes to the connection memory page selection is synchronized to the frame boundary of the next 48-frame multiframe. telecombus mode: icmp is sampled at the c1 byte position of every frame on the incoming bus (marked by ic1fp). changes to the connection memory pate selection are synchronized to the frame boundary of the next frame. cmp is sampled on the rising edge of srefclk.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 29 document id: pmc-2010883, issue 2 pin name type pin no. function ocmp input d11 outgoing connection memory page. the outgoing connection memory page select signal, ocmp, controls the selection of the connection memory page in the outgoing memory switch unit, omsu. when ocmp is set high, connection memory page 1 is selected. when ocmp is set low, connection memory page 0 is selected. the byte location during which ocmp is sampled is dependant on the mode of operation. 4-frame sbi336 mode: ocmp is sampled at the c1 byte position of the receive bus on the first frame of the 4-frame multiframe (marked by rc1fp). changes to the connection memory page selection is synchronized to the frame boundary of the next four frame multiframe. 48-frame sbi336 mode: ocmp is sampled at the c1 byte position of the receive bus on the first frame of the 48-frame multiframe (marked by rc1fp). changes to the connection memory page selection is synchronized to the frame boundary of the next 48-frame multiframe. telecombus mode: ocmp is sampled at the c1 byte position of every frame on the receive bus (marked by rc1fp). changes to the connection memory pate selection are synchronized to the frame boundary of the next frame. ocmp is sampled on the rising edge of sysclk. rwsel input n3 receive working serial data select. the receive working serial data select signal, rwsel, selects between sourcing outgoing data, odata[7:0], from the receive working serial data link, rpwrk/rnwrk, or the receive protect serial data link, rpprot/rnprot. when rwsel is set high, the working serial bus is selected. when rwsel is set low, the protect serial bus is selected. rwsel is sampled at the c1 byte location as defined by the receive serial interface frame pulse signal, rc1fp. changes to the selection of the working and protect serial streams are synchronized to the sbi frame boundary of the next frame. rwsel is sampled on the rising edge of sysclk. iuser2 input l5 input in-band link user signal. the input in-band link user signal, iuser2, provides external control over one of the bits in the in-band link. the user[2] bit in the header of the in-band signaling channel of both the working and protection serial links will reflect the state of this input. iuser2 an asynchronous signal and is internally synchronized to sysclk. ouser2 output k14 output in-band link user signal. the output in-band link user signal, ouser2, reflects the state of the user[2] bit in the header of the in-band signaling channel of either the working or the protection serial link, whichever is active. ouser2 is an asynchronous output. rstb input p3 reset enable bar. the active low reset signal, rstb, provides an asynchronous sbslite reset. rstb is a schmitt triggered input with an integral pull-up resistor.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 30 document id: pmc-2010883, issue 2 pin name type pin no. function jtag interface (5 signals) tck input h13 test clock. the jtag test clock signal, tck, provides timing for test operations that are carried out using the ieee p1149.1 test access port. tms input j11 test mode select. the jtag test mode select signal, tms, controls the test operations that are carried out using the ieee p1149.1 test access port. tms is sampled on the rising edge of tck. tms has an integral pull-up resistor. tdi input j14 test data input. the jtag test data input signal, tdi, carries test data into the sbslite via the ieee p1149.1 test access port. tdi is sampled on the rising edge of tck. tdi has an integral pull-up resistor. tdo tristate h12 test data output. the jtag test data output signal, tdo, carries test data out of the sbslite via the ieee p1149.1 test access port. tdo is updated on the falling edge of tck. tdo is a tri-state output which is inactive except when scanning of data is in progress. trstb input j12 test reset bar. the active low jtag test reset signal, trstb, provides an asynchronous sbslite test access port reset via the ieee p1149.1 test access port. trstb is a schmitt triggered input with an integral pull-up resistor. note that when trstb is not being used, it must be connected to the rstb input. analog reference resistors (2 signals) res analog input c2 reference resistor connection (res). an off-chip 3.16k ? 1% resistor is connected between this positive resistor reference pin and a kelvin ground pin, resk. an on-chip negative feedback path will force the 0.8v vref voltage onto res, therefore forcing 252ua of current to flow through the resistor. resk analog input b2 reference resistor connection (resk). an off-chip 3.16k ? 1% resistor is connected between the positive resistor reference pin, resk, and this kelvin ground pin. an on-chip negative feedback path will force the 0.8v vref voltage onto resk, therefore forcing 252ua of current to flow through the resistor. analog test bus (2 signals) atb0 analog f4 analog test pin (atb0). this pin is used for pmc-sierra validation and testing. this pin must be grounded. atb1 analog f3 analog test pin (atb1). this pin is used for pmc-sierra validation and testing. this pin must be grounded. analog high voltage power (5 signals) csu_avdh power h1 csu analog power (csu_avdh). this pin should be connected to a well-decoupled +3.3 v dc supply.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 31 document id: pmc-2010883, issue 2 pin name type pin no. function avdh[2] avdh[1] avdh[0] power c1 d4 e3 analog power (avdh[2:0]). these pins should be connected to a well-decoupled +3.3 v dc supply. avdq power h3 analog quiet power (avdq). this pin should be connected to a well decoupled +3.3 v dc supply. analog low voltage power (4 signals) avdl[3] avdl[2] avdl[1] avdl[0] power g4 h4 j3 j4 analog power (avdl[3:0]). these pins should be connected to a well-decoupled +1.8 v dc supply. each avdl pin requires individual filtering. digital core power (8 signals) dvddi[7] dvddi[6] dvddi[5] dvddi[4] dvddi[3] dvddi[2] dvddi[1] dvddi[0] power k2 l1 p5 p9 l13 g13 a11 a5 digital core power (dvddi[7:0]). the digital core power pins should be connected to a well-decoupled +1.8 v dc supply. digital i/o power (14 signals) dvddo[13] dvddo[12] dvddo[11] dvddo[10] dvddo[9] dvddo[8] dvddo[7] dvddo[6] dvddo[5] dvddo[4] dvddo[3] dvddo[2] dvddo[1] dvddo[0] power n1 n2 m4 p7 n9 p13 h14 e13 a13 a9 c8 c6 a3 a2 digital i/o power (dvddo[13:0]). the digital i/o power pins should be connected to a well-decoupled +3.3 v dc supply. digital i/o quiet power (3 signals) dvddq[2:0] power p8 j13 c10 digital i/o quite power (dvddq[2:0]). the digital i/o quite power pins should be connected to a well-decoupled +3.3 v dc supply.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 32 document id: pmc-2010883, issue 2 pin name type pin no. function ground (35 signals) vss[34] vss[33] vss[32] vss[31] vss[30] vss[29] vss[28] vss[27] vss[26] vss[25] vss[24] vss[23] vss[22] vss[21] vss[20] vss[19] vss[18] vss[17] vss[16] vss[15] vss[14] vss[13] vss[12] vss[11] vss[10] vss[9] vss[8] vss[7] vss[6] vss[5] vss[4] vss[3] vss[2] vss[1] vss[0] ground b1 d3 e4 g3 h2 j1 j2 k1 k3 k4 l3 p2 p4 m5 l7 m7 l8 m9 n12 l12 k11 h11 g14 e12 b13 b11 c11 a10 d10 b9 a7 b6 c5 b4 b3 ground (vss[34:0]). the ground pins, vss[34:0], should be connected to gnd. gnd thermal vias g7 g8 h7 h8 the thermal vias (gnd) pins are used to improve thermal conductance of the device package. they should be connected to the pcb ground plane. the gnd pins are not electrically connected to the other ground pins of the package. nc no connect k13 the no connect pin must be left floating. notes on pin description 1. all sbslite inputs and bi-directionals except the lvds links present minimum capacitive loading and operate at ttl (vdd reference) logic levels. 2. inputs rstb, ale, tms, tdi and trstb have internal pull-up resistors. 3. all sbslite outputs have 8 ma drive capability. 4. the dvddi and avdl power pins are not internally connected to each other. failure to connect these pins externally may cause malfunction or damage to the sbslite. 5. the avdh, avdq, csu_avdh, dvddo and dvddq power pins are not internally connected to each other. failure to connect these pins externally may cause malfunction or damage to the sbslite. 6. the dvddi, dvddo, dvddq, avdh, avdq, csu_avdh and avdl power pins all share a common ground.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 33 document id: pmc-2010883, issue 2 7. to prevent damage to the sbslite and to ensure proper operation, power must be applied simultaneously to all 3.3 v power pins followed by power to all the 1.8 v power pins followed by input pins driven by signals. 8. to prevent damage to the sbslite, power must first be removed from input pins followed by the removal of power from all the 1.8 v power supply pins followed by the simultaneous removal of power from all the 3.3 v power pins.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 34 document id: pmc-2010883, issue 2 10 functional description 10.1 sbi bus data formats the 19.44 mhz sbi bus is a multi-point to multi-point bus. since each sbs sbi interface handles the full sbi bus capacity, it will be more common for a single sbs to talk to multiple devices over the sbi bus, but there is nothing in the sbs that would prevent the sbs from sharing an sbi bus with other sbi devices. 10.1.1 sbi multiplexing structure the sbi structure uses a locked sonet/sdh structure to fix the position of the tu-3 relative to the sts-3/stm-1. the sbi is also of fixed frequency and alignment as determined by the reference clock (srefclk19) and frame indicator signal (ic1fp). frequency deviations are compensated by adjusting the location of the t1/e1/ds3/e3/tvt1.5/tvt2 channels using floating tributaries as determined by the v5 indicator and payload signals (iv5[x] and ipl[x]). tvts also allow for synchronous operation where sonet/sdh tributary pointers are carried within the sbi structure in place of the v5 indicator and payload signals (iv5[x] and ipl[x]). fractional links use as many bytes as required within a given synchronous payload envelope (spe) using the payload signals to indicate bytes carrying valid data. table 1 shows the bus structure for carrying t1, e1, tvt1.5, tvt2, ds3, e3 and fractional tributaries in a sdh stm-1 like format. up to 84 t1s, 63 e1s, 84 tvt1.5s, 63 tvt2s, 3 ds3s, 3 e3s or 3 fractional rate links are carried within the octets labeled spe1, spe2 and spe3 in columns 16-270. all other octets are unused and are of fixed position. the frame signal (ic1fp) occurs during the octet labeled c1 in row 1 column 7. the multiplexed links are separated into three spes called spe1, spe2 and spe3. each envelope carries up to 28 t1s, 21 e1, 28 tvt1.5s, 21 tvt2s, a ds3, an e3 or a fractional link. spe1 carries the t1s numbered 1,1 through 1,28, e1s numbered 1,1 through 1,21, ds3 number 1,1, e3 number 1,1 or fractional link 1,1. spe2 carries t1s numbered 2,1 through 2,28, e1s numbered 2,1 through 2,21, ds3 number 2,1, e3 number 2,1 or fractional link 2,1. spe3 carries t1s numbered 3,1 through 3,28, e1s numbered 3,1 through 3,21, ds3 number 3,1, e3 number 3,1 or fractional link 3,1. tvt1.5s are numbered the same as t1 tributaries and tvt2s are numbered the same as e1 tributaries.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 35 document id: pmc-2010883, issue 2 table 1 structure for carrying multiplexed links sbi column 1 6 7 8 15 16 17 18 19 268 269 270 row 1 - ??? -c1- ??? - spe1 spe2 spe3 spe1 ??? spe1 spe2 spe3 2 - ??? --- ??? - spe1 spe2 spe3 spe1 ??? spe1 spe2 spe3 ? ? ? 9 - - - - - spe1 spe2 spe3 spe1 spe1 spe2 spe3 1 233 56667 909090 spe column the mappings for each link type are rigidly defined, however the mix of links transported across the bus at any one time is flexible. each spe, comprising 85 columns numbered 6 through 90, operates independently allowing a mix of t1s, e1s, tvt1.5s, tvt2s, ds3s, e3s or fractional links. for example, spe1 could transport a single ds3, spe2 could transport a single e3 and spe3 could transport either 28 t1s or 21 e1s. each spe is restricted to carrying a single tributary type. sbi columns 16-18 are unused for t1, e1, tvt1.5 and tvt2 tributaries. tributary numbering tributary numbering for t1 and e1 uses the spe number, followed by the tributary number within that spe and are numbered sequentially. table 2 and table 3 show the t1 and e1 column numbering and relates the tributary number to the spe column numbers and overall sbi column structure. numbering for ds3 or e3 follows the same naming convention even though there is only one ds3 or e3 per spe. tvt1.5s and tvt2s follow the same numbering conventions as t1 and e1 tributaries respectively. sbi columns 16-18 are unused for t1, e1, tvt1.5 and tvt2 tributaries. table 2 t1/tvt1.5 tributary column numbering t1# spe1 column spe2 column spe3 column sbi column 1,1 7,35,63 19,103,187 2,1 7,35,63 20,104,188 3,1 7,35,63 21,105,189 1,2 8,36,64 22,106,190 2,2 8,36,64 23,107,191 ??? 1,28 34,62,90 100,184,268 2,28 34,62,90 101,185,269 3,28 34,62,90 102,186,270
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 36 document id: pmc-2010883, issue 2 table 3 e1/tvt2 tributary column numbering e1# spe1 column spe2 column spe3 column sbi column 1,1 7,28,49,70 19,82,145,208 2,1 7,28,49,70 20,83,146,209 3,1 7,28,49,70 21,84,147,210 1,2 8,29,50,71 22,85,148,211 2,2 8,29,50,71 23,86,149,212 ??? 1,21 27,48,69,90 79,142,205,268 2,21 27,48,69,90 80,143,206,269 3,21 27,48,69,90 81,144,207,270 10.1.2 sbi timing master modes the sbi is a synchronous bus which is timed to a reference 19.44 mhz clock and a 2 khz frame pulse (8 khz is easily derived from the 2 khz and 19.44 mhz clock). all sources and sinks of data on this bus are timed to the reference clock and frame pulse. the data format on the data bus allows for compensating between clock differences on the phy, sbi and link layer devices. this is achieved by floating data structures within the sbi format. timing is communicated across the sbi bus by floating data structures within the bus. payload indicator signals in the sbi control the position of the floating data structure and therefore the timing. when sources are running faster than the sbi the floating payload structure is advanced by an octet be passing an extra octet in the v3 octet locations (h3 octet for ds3 and e3 mappings). when the source is slower than the sbi the floating payload is retarded by leaving the octet after the v3 or h3 octet unused. both these rate adjustments are indicated by the sbi control signals. on the drop bus, all timing is sourced from the phy and is passed onto the link layer device by the arrival rate of data over the sbi. on the add bus, timing can be controlled by either the phy or the link layer device by controlling the payload and by making justification requests. when the link layer device is the timing master the phy device gets its transmit timing information from the arrival rate of data across the sbi. when the phy device is the timing master it signals the link layer device to speed up or slow down with justification request signals. the phy timing master indicates a speedup request to the link layer by asserting the justification request signal high during the v3 or h3 octet. when this is detected by the link layer it will advance the channel by inserting data in the next v3 or h3 octet as described above. the phy timing master indicates a slowdown request to the link layer by asserting the justification request signal high during the octet after the v3 or h3 octet. when detected by the link layer it will retard the channel by leaving the octet following the next v3 or h3 octet unused. both advance and retard rate adjustments take place in the frame or multi-frame following the justification request.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 37 document id: pmc-2010883, issue 2 the sbi bus supports a synchronous sbi mode for t1 and e1 links. in this mode the ds0s or timeslots within the t1 or e1 tributaries are fixed to the locations shown in the t1 and e1 mappings. effectively synchronous mode locks the v5 in the octet following the v1 octet and does not allow the tributaries to float relative to srefclk19. 10.1.3 sbi link rate information the sbi bus provides a method for carrying link rate information. this is optional on a per channel basis. two methods are specified, one for t1 and e1 channels and the second for ds3 and e3 channels. link rate information is not available for tvts. these methods use the reference 19.44 mhz sbi clock and the ic1fp frame synchronization signal to measure channel clock ticks and clock phase for transport across the bus. the t1 and e1 method allows for a count of the number of t1 or e1 rising clock edges between two ic1fp frame pulses. this count is encoded in clkrate[1:0] to indicate that the nominal number of clocks, one more than nominal or one less than nominal should be generated during the ic1fp period. this method also counts the number of 19.44 mhz clock rising edges after sampling ic1fp high to the next rising edge of the t1 or e1 clock, giving the ability to control the phase of the generated clock. the link rate information passed across the sbi bus via the v4 octet and is shown in table 4. table 5 shows the encoding of the clock count, clkrate[1:0], passed in the link rate octet. table 4 t1/e1 link rate information c1fp ??? refclk ??? t1/e1 clk ??? clock count phase link rate octet bit # 7 6 5:4 3:0 t1/e1 format alm 0 clkrate[1:0] phase[3:0] table 5 t1/e1 clock rate encoding clkrate[1:0] t1 clocks / 2 khz e1 clocks / 2 khz ?00? ? nominal 772 1024 ?01? ? fast 773 1025 ?1x? ? slow 771 1023
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 38 document id: pmc-2010883, issue 2 the ds3 and e3 method for transferring link rate information across the sbi passes the encoded count of ds3/e3 clocks between c1fp pulses in the same method used for t1/e1 tributaries, but does not pass any phase information. the other difference from t1/e1link rate is that clkrate[1:0] indicates whether the nominal number of clocks are generated or if four fewer or four extra clocks are generated during the c1fp period. the format of the ds3/e3 link rate octet is shown in table 6. this is passed across the sbi via the linkrate octet which follows the h3 octet in the column, see table 12 and table 15. table 7 shows the encoding of the clock count, clkrate[1:0], passed in the link rate octet. table 6 ds3/e3 link rate information link rate octet bit # 7 6 5:4 3:0 ds3/e3 format alm 0 clkrate[1:0] unused table 7 ds3/e3 clock rate encoding clkrate[1:0] ds3 clocks / 2 khz e3 clocks / 2 khz ?00? ? nominal 22368 17184 ?01? ? fast 22372 17188 ?1x? ? slow 22364 17180 10.1.4 alarms this specification provides a method for transferring alarm conditions across the sbi bus. this is optional on a per tributary basis and is valid for t1, e1, ds3, e3 tributaries but not valid for transparent vts nor fractional links. table 4 and table 6 show the alarm indication bit, alm, as bit 7 of the link rate octet. devices which do not support alarm indications should set this bit to 0. when not enabled the value of this bit must be ignored by the receiving device. the presence of an alarm condition is indicated by the alm bit set high in the link rate octet. the absence of an alarm condition is indicated by the alm bit set low in the link rate octet. the alm bit is transparent to the sbs.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 39 document id: pmc-2010883, issue 2 10.1.5 t1 tributary mapping table 8 shows the format for mapping 84 t1s within the spe octets. the ds0s and framing bits within each t1 are easily located within this mapping for channelized t1 applications. it is acceptable for the framing bit to not carry a valid framing bit on the add bus since the physical layer device will provide this information. unframed t1s use the exact same format for mapping 84 t1s into the sbi except that the t1 tributaries need not align with the frame bit and ds0 locations. the v1,v2 and v4 octets are not used to carry t1 data and are either reserved or used for control across the interface. when enabled, the v4 octet is the link rate octet of tables 1 and 3. it carries alarm and clock phase information across the sbi bus. the v1 and v2 octets are unused and should be ignored by devices listening to the sbi bus. the v5 and r octets do not carry any information and are fixed to a zero value. the v3 octet carries a t1 data octet but only during rate adjustments as indicated by the v5 indicator signals, iv5 and ov5, and payload signals, ipl and opl. the ppssssfr octets carry channel associated signaling (cas) bits and the t1 framing overhead. the ds0 octets are the 24 ds0 channels making up the t1 link. the v1,v2,v3 and v4 octets are fixed to the locations shown. all the other octets, shown shaded for t1#1,1, float within the allocated columns maintaining the same order and moving a maximum of one octet per 2 khz multi-frame. the position of the floating t1 is identified via the v5 indicator signals, iv5 and ov5, which locate the v5 octet. when the t1 tributary rate is faster than the sbi nominal t1 tributary rate, the t1 tributary is shifted ahead by one octet which is compensated by sending an extra octet in the v3 location. when the t1 tributary rate is slower than the nominal sbi tributary rate the t1 tributary is shifted by one octet which is compensated by inserting a stuff octet in the octet immediately following the v3 octet and delaying the octet that was originally in that position. table 8 t1 framing format col # t1#1,1 t1#2,1-3,28 t1#1,1 t1#2,1-3,28 t1#1,1 t1#2,1-3,28 row # 1-18 19 20-102 103 104-186 187 188-270 1 unused v1 v1 v5 - ppssssfr - 2 unused ds0#1 - ds0#2 - ds0#3 - 3 unused ds0#4 - ds0#5 - ds0#6 - 4 unused ds0#7 - ds0#8 - ds0#9 - 5 unused ds0#10 - ds0#11 - ds0#12 - 6 unused ds0#13 - ds0#14 - ds0#15 - 7 unused ds0#16 - ds0#17 - ds0#18 - 8 unused ds0#19 - ds0#20 - ds0#21 - 9 unused ds0#22 - ds0#23 - ds0#24 - 1 unused v2 v2 r - ppssssfr - 2 unused ds0#1 - ds0#2 - ds0#3 - 3 unused ds0#4 - ds0#5 - ds0#6 - 4 unused ds0#7 - ds0#8 - ds0#9 - 5 unused ds0#10 - ds0#11 - ds0#12 - 6 unused ds0#13 - ds0#14 - ds0#15 -
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 40 document id: pmc-2010883, issue 2 col # t1#1,1 t1#2,1-3,28 t1#1,1 t1#2,1-3,28 t1#1,1 t1#2,1-3,28 row # 1-18 19 20-102 103 104-186 187 188-270 7 unused ds0#16 - ds0#17 - ds0#18 - 8 unused ds0#19 - ds0#20 - ds0#21 - 9 unused ds0#22 - ds0#23 - ds0#24 - 1 unused v3 v3 r - ppssssfr - 2 unused ds0#1 - ds0#2 - ds0#3 - 3 unused ds0#4 - ds0#5 - ds0#6 - 4 unused ds0#7 - ds0#8 - ds0#9 - 5 unused ds0#10 - ds0#11 - ds0#12 - 6 unused ds0#13 - ds0#14 - ds0#15 - 7 unused ds0#16 - ds0#17 - ds0#18 - 8 unused ds0#19 - ds0#20 - ds0#21 - 9 unused ds0#22 - ds0#23 - ds0#24 - 1 unused v4 v4 r - ppssssfr - 2 unused ds0#1 - ds0#2 - ds0#3 - 3 unused ds0#4 - ds0#5 - ds0#6 - 4 unused ds0#7 - ds0#8 - ds0#9 - 5 unused ds0#10 - ds0#11 - ds0#12 - 6 unused ds0#13 - ds0#14 - ds0#15 - 7 unused ds0#16 - ds0#17 - ds0#18 - 8 unused ds0#19 - ds0#20 - ds0#21 - 9 unused ds0#22 - ds0#23 - ds0#24 - the p 1 p 0 s 1 s 2 s 3 s 4 fr octet carries t1 framing in the f bit and channel associated signaling in the p 1 p 0 and s 1 s 2 s 3 s 4 bits. channel associated signaling is optional. the r bit is reserved and is set to 0. the p 1 p 0 bits are used to indicate the phase of the channel associated signaling and the s 1 s 2 s 3 s 4 bits are the channel associated signaling bits for the 24 ds0 channels in the t1. table 9 shows the channel associated signaling bit mapping and how the phase bits locate the sixteen state cas mapping as well as t1 frame alignment for super frame and extended superframe formats. when using four state cas then the signaling bits are a1-a24, b1-b24, a1-b24, b1-b24 in place of are a1-a24, b1-b24, c1-c24, d1-d24. when using 2 state cas there are only a1-a24 signaling bits.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 41 document id: pmc-2010883, issue 2 table 9 t1 channel associated signaling bits sf esf s 1 s 2 s 3 s 4 ffp 1 p 0 a1 a2 a3 a4 f1 m1 00 a5 a6 a7 a8 s1 c1 00 a9 a10 a11 a12 f2 m2 00 a13 a14 a15 a16 s2 f1 00 a17 a18 a19 a20 f3 m3 00 a21 a22 a23 a24 s3 c2 00 b1 b2 b3 b4 f4 m4 01 b5 b6 b7 b8 s4 f2 01 b9 b10 b11 b12 f5 m5 01 b13 b14 b15 b16 s5 c3 01 b17 b18 b19 b20 f6 m6 01 b21 b22 b23 b24 s6 f3 01 c1 c2 c3 c4 f1 m7 10 c5 c6 c7 c8 s1 c4 10 c9 c10 c11 c12 f2 m8 10 c13 c14 c15 c16 s2 f4 10 c17 c18 c19 c20 f3 m9 10 c21 c22 c23 c24 s3 c5 10 d1 d2 d3 d4 f4 m10 11 d5 d6 d7 d8 s4 f5 11 d9 d10 d11 d12 f5 m11 11 d13 d14 d15 d16 s5 c6 11 d17 d18 d19 d20 f6 m12 11 d21 d22 d23 d24 s6 f6 11 t1 tributary asynchronous timing is compensated via the v3 octet as described in section 10.1.2. t1 tributary link rate adjustments are optionally passed across the sbi via the v4 octet as described in section 10.1.3. t1 tributary alarm conditions are optionally passed across the sbi bus via the link rate octet in the v4 location as described in sections 10.1.3 and 10.1.4. the sbi bus allows for a synchronous t1 mode of operation. in this mode the t1 tributary mapping is fixed to that shown in table 8 and rate justifications are not possible using the v3 octet. the clock rate information within the link rate octet in the v4 location is not used in synchronous mode.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 42 document id: pmc-2010883, issue 2 10.1.6 e1 tributary mapping table 10 shows the format for mapping 63 e1s within the spe octets. the timeslots and framing bits within each e1 are easily located within this mapping for channelized e1 applications. it is acceptable for the framing bits to not carry valid framing information on the add bus since the physical layer device will provide this information. unframed e1s use the exact same format for mapping 63 e1s into the sbi except that the e1 tributaries need not align with the timeslot locations associated with channelized e1 applications. the v1,v2 and v4 octets are not used to carry e1 data and are either reserved used for control information across the interface. when enabled, the v4 octet carries clock phase information across the sbi. the v1 and v2 octets are unused and should be ignored by devices listening to the sbi bus. the v5 and r octets do not carry any information and are fixed to a zero value. the v3 octet carries an e1 data octet but only during rate adjustments as indicated by the v5 indicator signals, iv5 and ov5, and payload signals, ipl and opl. the pp octets carry channel associated signaling phase information and e1 frame alignment. ts#0 through ts#31 make up the e1 channel. the v1,v2,v3 and v4 octets are fixed to the locations shown. all the other octets, shown shaded for e1#1,1, float within the allocated columns maintaining the same order and moving a maximum of one octet per 2 khz multi-frame. the position of the floating e1 is identified via the v5 indicator signals, iv5 and ov5, which locate the v5 octet. when the e1 tributary rate is faster than the e1 tributary nominal rate, the e1 tributary is shifted ahead by one octet which is compensated by sending an extra octet in the v3 location. when the e1 tributary rate is slower than the nominal rate the e1 tributary is shifted by one octet which is compensated by inserting a stuff octet in the octet immediately following the v3 octet and delaying the octet that was originally in that position. table 10 e1 framing format col # e1#1,1 #2,1-3,21 e1#1,1 #2,1-3,21 e1#1,1 #2,1-3,21 e1#1,1 #2,1-3,21 row # 1-18 19 20-81 82 83-144 145 146-207 208 209-270 1 unused v1 v1 v5 - pp - ts#0 - 2 unused ts#1 - ts#2 - ts#3 - ts#4 - 3 unused ts#5 - ts#6 - ts#7 - ts#8 - 4 unused ts#9 - ts#10 - ts#11 - ts#12 - 5 unused ts#13 - ts#14 - ts#15 - ts#16 - 6 unused ts#17 - ts#18 - ts#19 - ts#20 - 7 unused ts#21 - ts#22 - ts#23 - ts#24 - 8 unused ts#25 - ts#26 - ts#27 - ts#28 - 9 unused ts#29 - ts#30 - ts#31 - r - 1 unused v2 v2 r - pp - ts#0 - 2 unused ts#1 - ts#2 - ts#3 - ts#4 - 3 unused ts#5 - ts#6 - ts#7 - ts#8 - 4 unused ts#9 - ts#10 - ts#11 - ts#12 - 5 unused ts#13 - ts#14 - ts#15 - ts#16 - 6 unused ts#17 - ts#18 - ts#19 - ts#20 -
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 43 document id: pmc-2010883, issue 2 col # e1#1,1 #2,1-3,21 e1#1,1 #2,1-3,21 e1#1,1 #2,1-3,21 e1#1,1 #2,1-3,21 row # 1-18 19 20-81 82 83-144 145 146-207 208 209-270 7 unused ts#21 - ts#22 - ts#23 - ts#24 - 8 unused ts#25 - ts#26 - ts#27 - ts#28 - 9 unused ts#29 - ts#30 - ts#31 - r - 1 unused v3 v3 r - pp - ts#0 - 2 unused ts#1 - ts#2 - ts#3 - ts#4 - 3 unused ts#5 - ts#6 - ts#7 - ts#8 - 4 unused ts#9 - ts#10 - ts#11 - ts#12 - 5 unused ts#13 - ts#14 - ts#15 - ts#16 - 6 unused ts#17 - ts#18 - ts#19 - ts#20 - 7 unused ts#21 - ts#22 - ts#23 - ts#24 - 8 unused ts#25 - ts#26 - ts#27 - ts#28 - 9 unused ts#29 - ts#30 - ts#31 - r - 1 unused v4 v4 r - pp - ts#0 - 2 unused ts#1 - ts#2 - ts#3 - ts#4 - 3 unused ts#5 - ts#6 - ts#7 - ts#8 - 4 unused ts#9 - ts#10 - ts#11 - ts#12 - 5 unused ts#13 - ts#14 - ts#15 - ts#16 - 6 unused ts#17 - ts#18 - ts#19 - ts#20 - 7 unused ts#21 - ts#22 - ts#23 - ts#24 - 8 unused ts#25 - ts#26 - ts#27 - ts#28 - 9 unused ts#29 - ts#30 - ts#31 - r - when using cas, ts#16 carries the abcd signaling bits and the timeslots 17 through 31 are renumbered 16 through 30. the pp octet is 0h for all frames except for the frame which carries the cas for timeslots 15/30 at which time the pp octet is c0h. the first octet of the cas multi- frame, rrrrrrrr, is reserved and should be ignored by the receiver when cas signaling is enabled. table 11 shows the format of timeslot 16 when carrying channel associated signaling.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 44 document id: pmc-2010883, issue 2 table 11 e1 channel associated signaling bits ts#16[7:4] ts#16[3:0] pp rrrr rrrr 00 abcd1 abcd16 00 abcd2 abcd17 00 abcd3 abcd18 00 abcd4 abcd19 00 abcd5 abcd20 00 abcd6 abcd21 00 abcd7 abcd22 00 abcd8 abcd23 00 abcd9 abcd24 00 abcd10abcd2500 abcd11abcd2600 abcd12abcd2700 abcd13abcd2800 abcd14abcd2900 abcd15abcd30c0 e1 tributary asynchronous timing is compensated via the v3 octet as described in section 10.1.2. e1 tributary link rate adjustments are optionally passed across the sbi via the v4 octet as described in section 10.1.3. e1 tributary alarm conditions are optionally passed across the sbi bus via the link rate octet in the v4 location as described in sections 10.1.3 and 10.1.4. the sbi bus allows for a synchronous e1 mode of operation. in this mode the e1 tributary mapping is fixed to that shown in table 10 and rate justifications are not possible using the v3 octet. the clock rate information within the link rate octet in the v4 location is not used in synchronous mode. 10.1.7 ds3 tributary mapping table 12 shows a ds3 tributary mapped within the first spe, spe1. the v5 indicator pulse identifies the v5 octet. the ds3 framing format does not follow an 8 khz frame period so the floating ds3 multi-frame located by the v5 indicator, shown in heavy border grey region in table 12, will jump around relative to the h1 frame on every pass. in fact the v5 indicator will often be asserted twice per h1 frame, as is shown by the second v5 octet in table 12. the v5 indicator and payload signals indicate negative and positive rate adjustments which are carried out by either putting a data byte in the h3 octet or leaving empty the octet after the h3 octet.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 45 document id: pmc-2010883, issue 2 table 12 ds3 framing format spe col # ds3 1 ds3 2-56 ds3 57 ds3 58-84 ds3 col 85 row sbi col# 1,4,7,10 13 16 ??? 184 ??? 268 1 unused h1 v5 ds3 ds3 ds3 ds3 2 unused h2 ds3 ds3 ds3 ds3 ds3 3 unused h3 ds3 ds3 ds3 ds3 ds3 4 unused linkrat e ds3 ds3 ds3 ds3 ds3 5 unused unused ds3 ds3 ds3 ds3 ds3 6 unused unused ds3 ds3 ds3 ds3 ds3 7 unused unused ds3 ds3 ds3 ds3 ds3 8 unused unused ds3 ds3 v5 ds3 ds3 9 unused unused ds3 ds3 ds3 ds3 ds3 because the ds3 tributary rate is less than the rate of the grey region, padding octets are interleaved with the ds3 tributary to make up the difference in rate. interleaved with every ds3 multi-frame are 35 stuff octets, one of which is the v5 octet. these 35 stuff octets are spread evenly across seven ds3 subframes. each ds3 subframe is eight blocks of 85 bits. the 85 bits making up a ds3 block are padded out to be 11 octets. table 13 shows the ds3 block 11 octet format where r indicates a stuff bit, f indicates a ds3 framing bit and i indicates ds3 information bits. table 14 shows the ds3 multi-frame format that is packed into the grey region of table 12. in this table v5 indicates the v5 octet which is also a stuff octet, r indicates a stuff octet and b indicates the 11 octet ds3 block. each row in table 14 is a ds3 multi-frame. the ds3 multi-frame stuffing format is identical for 5 multi-frames and then an extra stuff octet after the v5 octet is added every sixth frame. table 13 ds3 block format octet # 1 234567891011 data rrrfiiii 8*i 8*i 8*i 8*i 8*i 8*i 8*i 8*i 8*i 8*i table 14 ds3 multi-frame stuffing format v5 4*r 8*b 5*r 8*b 5*r 8*b 5*r 8*b 5*r 8*b 5*r 8*b 5*r 8*b v5 4*r 8*b 5*r 8*b 5*r 8*b 5*r 8*b 5*r 8*b 5*r 8*b 5*r 8*b v5 4*r 8*b 5*r 8*b 5*r 8*b 5*r 8*b 5*r 8*b 5*r 8*b 5*r 8*b v5 4*r 8*b 5*r 8*b 5*r 8*b 5*r 8*b 5*r 8*b 5*r 8*b 5*r 8*b v5 4*r 8*b 5*r 8*b 5*r 8*b 5*r 8*b 5*r 8*b 5*r 8*b 5*r 8*b v5 5*r 8*b 5*r 8*b 5*r 8*b 5*r 8*b 5*r 8*b 5*r 8*b 5*r 8*b
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 46 document id: pmc-2010883, issue 2 ds3 asynchronous timing is compensated via the h3 octet as described in section 10.1.2. ds3 link rate adjustments are optionally passed across the sbi via the linkrate octet as described in section 10.1.3. ds3 alarm conditions are optionally passed across the sbi bus via the linkrate octet as described in sections 10.1.3 and 10.1.4. 10.1.8 e3 tributary mapping table 15 shows a e3 tributary mapped within the first spe, spe1. the v5 indicator pulse identifies the v5 octet. the e3 framing format does not follow an 8 khz frame period so the floating frame located by the v5 indicator and shown in grey in table 15, will jump around relative to the h1 frame on every pass. in fact the v5 indicator will be asserted two or three times per h1 frame, as is shown by the second and third v5 octet in table 15. the v5 indicator and payload signals indicate negative and positive rate adjustments which are carried out by either putting a data byte in the h3 octet or leaving empty the octet after the h3 octet. table 15 e3 framing format spe col # e3 1 e3 2-18 e3 19 e3 20- 38 e3 39 e3 40- 84 e3 85 row sbi col# 1,4,7,10 13 16 ??? 70 ??? 130 ??? 268 1 unused h1 v5 e3 e3 e3 e3 e3 e3 2 unused h2 e3 e3 e3 e3 e3 e3 e3 3 unused h3 e3 e3 e3 e3 e3 e3 e3 4 unused linkrat e e3 e3 v5 e3 e3 e3 e3 5 unused unused e3 e3 e3 e3 e3 e3 e3 6 unused unused e3 e3 e3 e3 e3 e3 e3 7 unused unused e3 e3 e3 e3 v5 e3 e3 8 unused unused e3 e3 e3 e3 e3 e3 e3 9 unused unused e3 e3 e3 e3 e3 e3 e3 because the e3 tributary rate is less than the rate of the grey region, padding octets are interleaved with the e3 tributary to make up the difference in rate. interleaved with every e3 frame is an alternating pattern of 81 and 82 stuff octets, one of which is the v5 octet. these 81 or 82 stuff octets are spread evenly across the e3 frame. each e3 subframe is 48 octet which is further broken into 4 equal blocks of 12 octets each. table 16 shows the alternating e3 frame stuffing format that is packed into the grey region of table 15. note that there are 6 stuff octets after the v5 octet in one frame and 5 stuff octets after the v5 octet in the next frame. in this table v5 indicates the v5 octet which is also a stuff octet, r indicates a stuff octet, d indicates an e3 data octet, fas indicates the first byte of the 10 bit e3 frame alignment signal.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 47 document id: pmc-2010883, issue 2 table 16 e3 frame stuffing format v5 6*r fas 11*d 5*r 12*d 5*r 12*d 5*r 12*d 5*r fas 11*d 5*r 12*d 5*r 12*d 5*r 12*d 5*r fas 11*d 5*r 12*d 5*r 12*d 5*r 12*d 5*r fas 11*d 5*r 12*d 5*r 12*d 5*r 12*d v5 5*r fas 11*d 5*r 12*d 5*r 12*d 5*r 12*d 5*r fas 11*d 5*r 12*d 5*r 12*d 5*r 12*d 5*r fas 11*d 5*r 12*d 5*r 12*d 5*r 12*d 5*r fas 11*d 5*r 12*d 5*r 12*d 5*r 12*d e3 asynchronous timing is compensated via the h3 octet as described in section 10.1.2. e3 link rate adjustments are optionally passed across the sbi via the linkrate octet as described in section 10.1.3. e3 alarm conditions are optionally passed across the sbi bus via the linkrate octet as described in sections 10.1.3 and 10.1.4. 10.1.9 transparent vt1.5/tu11 mapping vt1.5 and tu11 virtual tributaries, tvt1.5s, are transported across the sbi bus in a similar manner to the t1 tributary mapping. table 17 shows the transparent structure where ?i? is used to indicate information bytes. there are two options when carrying virtual tributaries on the sbi bus, the primary difference being how the floating v5 payload is located. the first option is locked tvt mode which carries the entire vt1.5/tu11 virtual tributary indicated by the shaded region in table 17. locked is used to indicate that the location of the v1,v2 pointer is locked. the virtual tributary must have a valid v1,v2 pointer to locate the v5 payload. in this mode the v5 indicator and payload signals, iv5, ov5, ipl and opl, may be generated but must be ignored by the receiving device. in locked mode timing is always sourced by the transmitting side, therefore justification requests are not used and the just_req signal is ignored. other than the v1 and v2 octets which must carry valid pointers, all octets can carry data in any format. the location of the v1,v2,v3 and v4 octets is fixed to the locations shown in table 17. the second option is floating tvt mode which carries the payload comprised of the v5 and i octets within the shaded region of table 17. in this mode the v1,v2 pointers are still in a fixed location and may be valid but are ignored by the receiving device. the v5 indicator and payload signals, iv5, ov5, ipl and opl, must be valid and are used to locate the floating payload. the justification request signal can be used to control the timing on the add bus. the v3 octets are used to accommodate justification requests. the location of the v1,v2,v3 and v4 octets is fixed to the locations shown in table 17.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 48 document id: pmc-2010883, issue 2 table 17 transparent vt1.5/tu11 format col # vt1.5#1,1 #2,1-3,28 vt1.5#1,1 #2,1-3,28 vt1.5#1,1 #2,1-3,28 row # 1-18 19 20-102 103 104-186 187 188-270 1 unused v1 v1 v5 - i - 2 unused i - i - i - 3 unused i - i - i - 4 unused i - i - i - 5 unused i - i - i - 6 unused i - i - i - 7 unused i - i - i - 8 unused i - i - i - 9 unused i - i - i - 1 unused v2 v2 i - i - 2 unused i - i - i - 3 unused i - i - i - 4 unused i - i - i - 5 unused i - i - i - 6 unused i - i - i - 7 unused i - i - i - 8 unused i - i - i - 9 unused i - i - i - 1 unused v3 v3 i - i - 2 unused i - i - i - 3 unused i - i - i - 4 unused i - i - i - 5 unused i - i - i - 6 unused i - i - i - 7 unused i - i - i - 8 unused i - i - i - 9 unused i - i - i - 1 unused v4 v4 i - i - 2 unused i - i - i - 3 unused i - i - i - 4 unused i - i - i - 5 unused i - i - i - 6 unused i - i - i - 7 unused i - i - i - 8 unused i - i - i - 9 unused i - i - i -
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 49 document id: pmc-2010883, issue 2 10.1.10 transparent vt2/tu12 mapping vt2 and tu12 virtual tributaries, tvt2s, are transported across the sbi bus in a similar manner to the e1 tributary mapping. table 18 shows the transparent structure where ?i? is used to indicate information bytes. there are two options when carrying virtual tributaries on the sbi bus, the primary difference being how the floating v5 payload is located. the first option is locked tvt mode that carries the entire vt2/tu12 virtual tributary indicated by the shaded region in table 18. locked is used to indicate that the location of the v1,v2 pointer is locked. the virtual tributary must have a valid v1,v2 pointer to locate the v5 payload. in this mode the v5 indicator and payload signals, iv5, ov5, ipl and opl, are optionally generated but must be ignored by the receiving device. in locked mode timing is always sourced by the transmitting side, therefore justification requests are not used and the just_req signal is ignored. other than the v1 and v2 octets which are carrying valid pointers, all octets can carry data in any format. the location of the v1,v2,v3 and v4 octets is fixed to the locations shown in table 18. the second option is floating tvt mode that carries the payload comprised of the v5 and i octets within the shaded region of table 18. in this mode the v1,v2 pointers are still in a fixed location and may be valid but are ignored by the receiving device. the v5 indicator and payload signals, iv5, ov5, ipl and opl, must be valid and are used to locate the floating payload. the justification request signal can be used to control the timing on the add bus. the v3 octet is used to accommodate justification requests. the location of the v1,v2,v3 and v4 octets is fixed to the locations shown in table 18. table 18 transparent vt2/tu12 format col # e1#1,1 #2,1-3,21 e1#1,1 #2,1-3,21 e1#1,1 #2,1-3,21 e1#1,1 #2,1-3,21 row # 1-18 19 20-81 82 83-144 145 146-207 208 209-270 1 unused v1 v1 v5 - i - i - 2 unused i - i - i - i - 3 unused i - i - i - i - 4 unused i - i - i - i - 5 unused i - i - i - i - 6 unused i - i - i - i - 7 unused i - i - i - i - 8 unused i - i - i - i - 9 unused i - i - i - i - 1 unused v2 v2 i - i - i - 2 unused i - i - i - i - 3 unused i - i - i - i - 4 unused i - i - i - i - 5 unused i - i - i - i - 6 unused i - i - i - i - 7 unused i - i - i - i -
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 50 document id: pmc-2010883, issue 2 col # e1#1,1 #2,1-3,21 e1#1,1 #2,1-3,21 e1#1,1 #2,1-3,21 e1#1,1 #2,1-3,21 row # 1-18 19 20-81 82 83-144 145 146-207 208 209-270 8 unused i - i - i - i - 9 unused i - i - i - i - 1 unused v3 v3 i - i - i - 2 unused i - i - i - i - 3 unused i - i - i - i - 4 unused i - i - i - i - 5 unused i - i - i - i - 6 unused i - i - i - i - 7 unused i - i - i - i - 8 unused i - i - i - i - 9 unused i - i - i - i - 1 unused v4 v4 i - i - i - 2 unused i - i - i - i - 3 unused i - i - i - i - 4 unused i - i - i - i - 5 unused i - i - i - i - 6 unused i - i - i - i - 7 unused i - i - i - i - 8 unused i - i - i - i - 9 unused i - i - i - i - 10.1.11 fractional rate tributary mapping the fractional rate sbi mapping is intended for support of data services over fractional ds3 or similar links. a fractional rate link is mapped into any spe octet as defined in table 1. table 19 shows all the available information (i) octets useable for carrying a fractional rate link mapped to a single spe. there are no v1 to v5 bytes nor frame alignment signals in a fractional rate link. the add bus and drop bus payload signals, ipl and opl, indicate when a fractional rate information byte contains valid data or is empty. the fractional rate link add bus can have the timing master be either the phy or the link layer device. when the phy is the timing master the just_req signal from the phy communicates the transmit rate to the link layer device. the just_req signal is asserted during any of the available fractional rate link octets to indicate that the phy can accept another byte of data. for every byte that is marked with the just_req signal the link layer device should respond with a valid byte to the phy within a short time. the phy accepts data from the link layer device whenever it sees valid data as indicated by the ipl or opl signal, whether it is timing master or slave.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 51 document id: pmc-2010883, issue 2 table 19 fractional rate format spe col # fractional 1 fractional 2-84 fractional col 85 row sbi col# 1,4,7,10,13 16 ??? ??? ??? ??? 268 1 unused i i i 2 unused i i i 3 unused i i i 4 unused i i i 5 unused i i i 6 unused i i i 7 unused i i i 8 unused i i i 9 unused i i i 10.1.12 sbi336 bus format the 77.76 mhz sbi336 bus is exactly four interleaved 19.44 mhz sbi buses. there is a slight difference between the two formats to accommodate the increased clock rate. instead of using the common add/drop c1fp alignment of the sbi bus to reference the just_req signal, the drop bus c1fp alignment is used. this aids 77.76 mhz bus timing by allowing buffering and retiming logic to be put between sbi336 devices. this change also aids construction of larger sbi cross connect systems using smaller buffers between devices by controlling the c1 frame alignment independently in each direction.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 52 document id: pmc-2010883, issue 2 10.1.13 sbi336 multiplexing structure table 20 structure for carrying multiplexed links in sbi336 sbi column 1 24 25 26 60 61 62 63 64 65 66 67 68 1078 1079 1080 row 1- ??? -c1- ??? - 1,spe1 2,spe1 3,spe1 4,spe1 1,spe2 2,spe2 3,spe2 4,spe2 ??? 2,spe3 3,spe3 4,spe3 2- ??? --- ??? - 1,spe1 2,spe1 3,spe1 4,spe1 1,spe2 2,spe2 3,spe2 4,spe2 ??? 2,spe3 3,spe3 4,spe3 ? ? ??? 2,spe3 3,spe3 4,spe3 1 233 566 666666 909090 spe column table 20 shows how 12 spes are multiplexed into a 77.76 mhz sbi336 bus. the structure is exactly the same as byte interleaving four 19.44 mhz sbi buses. 1,spe1 identifies spe1 from the first sbi equivalent bus, 2,spe1 identifies spe1 from the second sbi equivalent bus, and so on. all tributary mapping formats are exactly the same as for the 19.44 mhz sbi bus with the only difference that there are four times the number of tributaries. tributary numbering appends the equivalent sbi number to the original sbi numbering. for example, the first t1 in a sbi bus would be numbered t1 #1,1 whereas the first t1 in a sbi336 bus would be numbered t1 #1,1,1. likewise the second t1 in a sbi bus would be t1 #2,1 whereas the second t1 in a sbi336 bus would be t1 #2,1,1. 10.2 incoming sbi336 timing adapter the incoming sbi336 timing adapter (ista) provides a multiplexing function of four incoming 19.44 mhz sbi or telecombuses into a 77.76 mhz sbi336 or telecombus. this involves simple column multiplexing of the four incoming sbi or telecombuses. the timing adapter block also provides a transparent mode when the incoming interface is already in sbi336 or 77.76 mhz telecombus format. when the sbs is connected to an 19.44 mhz sbi physical layer device, the justification request signal, just_req, is an input to the sbs and is aligned to the outgoing bus. this block re- aligns the justification request signal from the outgoing frame alignment, marked by oc1fp, to the internal incoming sbi336 frame alignment. when the sbs is connected to a 19.44 mhz sbi link layer device or any 77.76 mhz sbi336 device, no re-alignment of the justification request is required by this block. 10.3 cas expanders the channel associated signaling expander blocks, icase and ocase, pull the cas information from the sbi336 formatted bus on a tributary basis so that it can be switched through the memory switch with the ds0 data. for tributaries enabled for ds0 switching, the cas bits are double buffered on a signaling multiframe boundary and repeated along side the tributary data for the duration of the multiframe. this function is enabled on a per tributary basis and can be used for t1 and e1 tributaries simultaneously across sbi spes. this block adds one t1 multiframe (24 frames) or one e1 multiframe (16 frames) of latency to the cas bits.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 53 document id: pmc-2010883, issue 2 10.4 memory switch units the memory switch unit blocks, imsu and omsu, provide ds0 or column switching of the sbi336 or 77.76 mhz telecombus. any input byte (or column) can be switched to any output byte (or column). four bits of cas and three or four bits of control information are switched along with the data byte. in sbi336 mode, the control signals are pl, v5 and just_req. in telecombus mode, the control signals are pl, tpl, v5 and tais. in ds0 switch mode, the data entering the msu is stored in two alternating pages of memory. each page contains one complete frame (9720 bytes) of data. one of these alternating pages is currently filling while the other is currently full. data exiting the msu is extracted from the currently full page. as a consequence, the msu imposes a nominal switching latency of 1 frame (125us). the selection of bytes to fill each output port requires a switching connection memory. control is required for each of the 9720 bytes in the output sbi336 frame. complete specification of an output byte requires 14 bits to specify which of the 9720 input bytes to use. dual copies of this control memory are required to provide hitless frame boundary switchover. in column switch mode, the same switching principle described above is used, but less memory is required. data entering the msu is stored in two alternating pages of memory. each page contains one row (1080 bytes) of data. in this mode, the nominal latency is 1 row if a frame (<15 s). the switching connection memory for the output port requires control for each of the 1080 columns in the frame. complete specification of an output column requires 11 bits to specify which of the 1080 input columns to use. dual copies of this control memory are required to provide hitless frame boundary switchover. each msu can be independently bypassed for reduced latency or debugging purposes. 10.4.1 data buffer the data buffer block contains a double buffer structure for each frame consisting of a data byte, 4-bits of channel associated signaling information and 4 bits of control information necessary for identifying valid data and timing. 10.4.2 connection memory the connection memory sub-block contains two pages of mapping configuration, page 0 and page 1. one page is designated the active page and the other the stand-by page. selection between which page is to be active and which is to be stand-by is controlled by the icmp signal (for the imsu) and ocmp signal (for the omsu). the connection memory sub-block samples the value on the icmp signal at the c1 byte position as defined by the incoming frame pulse signal, ic1fp. the connection memory sub-block samples the value on the ocmp signal at the c1 byte position as defined by the receive serial interface frame pulse signal, rc1fp. swaps between the active/standby status of the two pages are synchronized to the first a1 byte of the next frame or multiframe. this arrangement allows all devices in a cross-connect system to be updated in a coordinated fashion. consequently, ds0 streams or tributaries not being assigned new positions are unaffected by page swaps. the cmp input signals can be overridden by register configuration or by the sbi336s inband link channel.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 54 document id: pmc-2010883, issue 2 10.5 cas merging the channel associated signaling merge blocks, icasm and ocasm, insert the cas signaling information into the sbi bus on a tributary basis. cas signaling channels within the sbi bus are constructed out of the available cas bits for t1 and e1 sbi tributaries that are enabled for cas signaling. the resulting cas signaling channel replaces the octets of the sbi bus where the new cas signaling is to be inserted. this block adds one t1 multiframe (24 frames) or one e1 multiframe (16 frames) of latency to the cas bits. 10.6 incoming sbi336 tributary translator the incoming sbi336 tributary translator block, istt, translates all sbi336 timing and channel associated signaling information for all tributaries into sbi336s format. the output from this block is a 77.76 mhz sbi336 stream with all tributaries and control signals encoded into an internal format that closely resembles the serial sbi336s format. this block translates all tributary types into a form that is easy for the 8b/10b encoder to handle in a more generic form. a control ram keeps the current configuration for each of the incoming sbi bus tributaries so that it can perform the translation function. common to all tributaries is identification of the first c1 byte. there are unique mappings of the 8b/10b codes for the supported sbi and sbi336 bus link types: asynchronous t1/e1, synchronous (locked) t1/e1, transparent vt1.5/vt2, ds3/e3 and fractional rate links. much of the identification and mapping of a link into serial sbi format is based on the c1 frame pulse and a tributaries location relative to that c1 pulse. in addition to the c1fp identification this block identifies multiframe alignment, valid payload, pointer movements for floating tributaries and timing control for encoding into the 8b/10b serial sbi format. this block is transparent in telecombus mode. 10.7 prbs processors the working and protection prbs processor blocks, wpp and ppp, provides in-service and off- line prbs generation and detection for diagnostics of the equipment downstream of the two lvds links. each prbs processor has the capacity to source and monitor prbs data for the associated working or protection serial sbi336s stream with a granularity of unchannelized sbi spes of telecombus sts-1s. 10.7.1 prbs generator the prbs generator sub-block optionally overwrites the data originating from the incoming data streams, idata[4:1][7:0]. when enabled, the prbs generator sub-block inserts synchronous payload envelope, spe bytes into the serial transmit links. the inserted data is derived from an internal linear feedback shift register (lfsr) with a polynomial of x 23 + x 18 + 1.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 55 document id: pmc-2010883, issue 2 10.7.2 prbs detector the prbs detector sub-block monitors the spe bytes in the incoming data stream. the incoming data is compared against the expected value derived from an internal linear feedback shift register (lfsr) with a polynomial of x 23 + x 18 + 1. if the incoming data fails to match the expected value for three consecutive bytes, the prbs detector sub-block will enter out-of-synchronization (oos) state. the lfsr will be re-initialized using the incoming data bytes. the new lfsr seed is confirmed by comparison with subsequent incoming data bytes. the prbs detector sub-block will exit the oos state when the incoming data matches the lfsr output for three consecutive bytes. the prbs detector sub-block will remain in the oos state and re-load the lfsr if confirmation failed. the prbs sub-block counts prbs byte errors and optionally generates interrupts when it enters and exits the oos state. 10.8 transmit 8b/10b encoders the transmit 8b/10b encoder blocks, tw8e and tp8e, construct an 8b/10b character stream from an incoming translated sbi336 bus or telecombus carrying an sts-12/stm-4 equivalent stream. in sbi mode, these blocks encode the sbi336s stream as shown in table 21. when configured for synchronous mode for ds0 switching, the 8b/10b encoder transmits cas signaling multiframe alignment across the sbi336s interface by generating a c1fp character every 48 frame times. when not configured for ds0 switching the c1fp character is sent every 4 frames. 10.8.1 sbi336s 8b/10b character encoding table 21 shows the mapping of sbi336s bus control bytes and signals into 8b/10b control characters. the linkrate octet in location v4, v1 and v2, the in-band programming channel, the v3 octet when it contains data are all carried as data. justification requests for master timing are carried in the v5 character so there are three v5 characters used, nominal, negative timing adjustment request, positive timing adjustment request. table 21 sbi336s character encoding code group name curr. rd- abcdei fghj curr. rd+ abcdei fghj encoded signals description common to all link types k28.5 001111 1010 110000 0101 ic1fp=?b1 c1fp frame and multiframe alignment k23.7- 111010 1000 - overhead bytes (columns 1-60 or 1-72 except for c1 and in-band programming channel), v3 or h3 byte except during negative justification, byte after v3 or h3 byte during positive justification, unused bytes in fraction rate links asynchronous t1/e1 links k27.7- 110110 1000 - v5 byte, no justification request k28.7- 001111 1000 - v5 byte, negative justification request k29.7- 101110 1000 - v5 byte, positive justification request
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 56 document id: pmc-2010883, issue 2 code group name curr. rd- abcdei fghj curr. rd+ abcdei fghj encoded signals description synchronous t1/e1 links k27.7- 110110 1000 - v5 byte asynchronous ds3/e3 links k27.7- 110110 1000 - v5 byte, no justification request k28.7- 001111 1000 - v5 byte, negative justification request* k29.7- 101110 1000 - v5 byte, positive justification request* fractional rate links k28.7- 001111 1000 - v5 byte, send one extra byte request** k29.7- 101110 1000 - v5 byte, send one less byte request** floating transparent virtual tributaries k27.7- 110110 1000 - v5 byte iv5=1, idata[0,4] = erdi[1:0] = ?b00, idata[5] = rei = ?b0 k27.7+ - 001001 0111 v5 byte iv5=1, idata[0,4] = erdi[1:0] = ?b00, idata[5] = rei = ?b1 k28.7- 001111 1000 - v5 byte iv5=1, idata[0,4] = erdi[1:0] = ?b01, idata[5] = rei = ?b0 k28.7+ - 110000 0111 v5 byte iv5=1, idata[0,4] = erdi[1:0] = ?b01, idata[5] = rei = ?b1 k29.7- 101110 1000 - v5 byte iv5=1, idata[0,4] = erdi[1:0] = ?b10, idata[5] = rei = ?b0 k29.7+ - 010001 0111 v5 byte iv5=1, idata[0,4] = erdi[1:0] = ?b10, idata[5] = rei = ?b1 k30.7- 011110 1000 - v5 byte iv5=1, idata[0,4] = erdi[1:0] = ?b11, idata[5] = rei = ?b0 k30.7+ - 100001 0111 v5 byte iv5=1, idata[0,4] = erdi[1:0] = ?b11, idata[5] = rei = ?b1 note 1. note there can be multiple v5s per sbi frame when in ds3 or e3 mode but only one justification can occur per sbi frame. positive and negative justification request through v5 required by the sbi336s interface should be limited to one per frame.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 57 document id: pmc-2010883, issue 2 2. note fractional rate links are symmetric in the transmit and receive direction over sbi336s. when using clock slave mode with a fractional rate link the clock master makes single byte adjustments to the slaves rate once per frame. 10.8.2 serial telecombus 8b/10b character encoding table 22 shows the mapping of telecombus control bytes and signals into 8b/10b control characters. when the telecombus control signals conflict each other, the 8b/10b control characters are generated according to the sequence of the table, with the characters at the top of the table taking precedence over those lower in the table. table 22 serial telecombus character encoding code group name curr. rd- abcdei fghj curr. rd+ abcdei fghj encoded signals description high order path termination (hpt) mode k28.5 001111 1010 110000 0101 ic1fp=?b1 ipl=?b0 c1fp frame and multiframe alignment k28.0- 001111 0100 - ipl=?b0 high-order path h3 byte position, no negative justification event. k28.0+ - 110000 1011 ipl=?b0 high-order path pso byte position, positive justification event. k28.6 001111 0110 110000 1001 ic1fp=?b1, ipl=?b1 high-order path frame alignment (j1). low order path termination (lpt) mode k28.4+ - 110000 1101 itais=?b1 low-order path ais. k27.7- 110110 1000 - iv5=?b1, idata[0,4] = erdi[1:0] = ?b00, idata[5] = rei = ?b0 low order path frame alignment. erdi and rei are encoded in the v5 byte. k27.7+ - 001001 0111 iv5=?b1, idata[0,4] = erdi[1:0] = ?b00, idata[5] = rei = ?b1 low order path frame alignment. erdi and rei are encoded in the v5 byte. k28.7- 001111 1000 - iv5=?b1, idata[0,4] = erdi[1:0] = ?b01, idata[5] = rei = ?b0 low order path frame alignment. erdi and rei are encoded in the v5 byte. k28.7+ - 110000 0111 iv5=?b1, idata[0,4] = erdi[1:0] = ?b01, idata[5] = rei = ?b1 low order path frame alignment. erdi
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 58 document id: pmc-2010883, issue 2 code group name curr. rd- abcdei fghj curr. rd+ abcdei fghj encoded signals description and rei are encoded in the v5 byte. k29.7- 101110 1000 - iv5=?b1, idata[0,4] = erdi[1:0] = ?b10, idata[5] = rei = ?b0 low order path frame alignment. erdi and rei are encoded in the v5 byte. k29.7+ - 010001 0111 iv5=?b1, idata[0,4] = erdi[1:0] = ?b10, idata[5] = rei = ?b1 low order path frame alignment. erdi and rei are encoded in the v5 byte. k30.7- 011110 1000 - iv5=?b1, idata[0,4] = erdi[1:0] = ?b11, idata[5] = rei = ?b0 low order path frame alignment. erdi and rei are encoded in the v5 byte. k30.7+ - 100001 0111 iv5=?b1, idata[0,4] = erdi[1:0] = ?b11, idata[5] = rei = ?b1 low order path frame alignment. erdi and rei are encoded in the v5 byte. k23.7- 111010 1000 000101 0111 itpl=?b0 non low-order path payload bytes. 10.9 transmit serializer the transmit serializer blocks, twps and tpps, convert 8b/10b characters to bit-serial format. the transmit working serializer, twps, generates a serial stream for the working transmit lvds link, tpwrk/tnwrk. the transmit protect serializer, tpps, generates a serial stream for the protect transmit lvds link, tpprot/tnprot. 10.10 lvds transmitters the lvds transmitters, twlv and tplv, convert 8b/10b encoded digital bit-serial streams to lvds signaling levels. the transmit working lvds interface, twlv, drives the working transmit lvds links, tpwrk/tnwrk. the transmit protect lvds interface block, tplv, drives the protect transmit lvds link, tpprot/tnprot. 10.11 clock synthesis unit the clock synthesis unit (csu) block generates the 777.6 mhz clock for the transmit and receive lvds links. 10.12 transmit reference generator the transmit voltage reference generator block generates bias voltages and currents for the lvds transmitters.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 59 document id: pmc-2010883, issue 2 10.13 lvds receivers the lvds receivers, rwlv and rplv, convert lvds signaling levels to 8b/10b encoded digital bit-serial. the receive working lvds interface block, rwlv, connects to the working receive lvds links, rpwrk/rnwrk. the receive protect lvds interface block, rplv, connects to the protect receive lvds link rpprot/rnprot. 10.14 data recovery units the data recovery units, wdru and pdru, monitor the receive lvds link for transitions to determine the extent of bit cycles on the link. it then adjusts its internal timing to sample the link in the middle of the data ?eye?. wdru retrieves data from the working receive lvds link, rpwrk/rnwrk. pdru processes the protect receive lvds link, rpprot/rnprot. the dru block also converts the serial stream into 10-bit words. the words are constructed from ten consecutive received bits without regard to 8b/10b character boundaries. 10.15 receive 8b/10b decoders the receive 8b/10b serial sbi336s bus decoders, rw8d and rp8d, frame to the receive stream to find 8b/10b character boundaries. it also contains a fifo to bridge between the timing domain of the receive lvds links and the system clock timing domain. the rw8d block performs framing and elastic store functions on data retrieved from the working receive lvds link, rpwrk/rnwrk. the rp8d block processes data on the protect receive lvds link, rpprot/rnprot. 10.15.1 fifo buffer the fifo buffer sub-block provides isolation between the timing domain of the associated receive lvds link and that of the system clock, sysclk. the fifo also provides a retiming function to allow individual links in a multi-sbs system to have varying interconnect delay. this eases timing distribution and synchronization in large systems. data with arbitrary alignment to 8b/10b characters are written into a 10-bit by 24-word deep fifo at the link clock rate. data is read from the fifo at every sysclk cycle. 10.15.2 serial sbi336s and telecombus alignment the alignment functionality preformed by each receiver can be broken down into two parts, character alignment and frame alignment. character alignment finds the 8b/10b character boundary in the arbitrarily aligned incoming data. frame alignment finds sbi336s or telecombus frame and multiframe boundaries within the serial link. the character and frame alignment are expected to be robust enough for operation over a cabled interconnect.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 60 document id: pmc-2010883, issue 2 10.15.3 character alignment block character alignment locates character boundaries in the incoming 8b/10b data stream. the character alignment algorithm may be in one of two states, in-character-alignment state and out- of-character-alignment state. the two states of the character alignment algorithm is shown in figure 8. when the character alignment state machine is in the out-of-character-alignment state, it maintains the current alignment, while searching for a c1fp character. if it finds the c1fp character it will re-align to the c1fp character and move to the in-character-alignment state. the c1fp character is found by searching for the 8b/10b c1fp character, k28.5+ or k28.5-, simultaneously in ten possible bit locations. while in the in-character-alignment state, the state machine monitors lcvs. if 5 or more lcvs are detected within a 15 character window the character alignment state machine transitions to out-of-character-alignment state. the special characters listed in table 21 and table 22 are ignored for lcv purposes. upon return to in- character-alignment state the lcv count is cleared. figure 8 character alignment state machine out-of- character- alignment in- character- alignment 5-in-15 lcvs found c1fp character 10.15.4 frame alignment frame alignment locates sbi or telecombus frame and multiframe boundaries in the incoming 8b/10b data stream. the frame alignment state machine may be in one of two states, in-frame- alignment state and out-of-frame-alignment state. each sbi336s frame is 125 s in duration.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 61 document id: pmc-2010883, issue 2 in sbi mode: encoded over the sbi336s frame alignment is sbi336s multiframe alignment that is every four sbi336s frames or 500 s. when carrying ds0 traffic in synchronous mode, signaling multiframe alignment is also necessary and is also encoded over sbi336s alignment. signaling multiframe alignment is every 24 frames for t1 links and every 16 frames for e1 links, therefore signaling multiframe alignment covering both t1 and e1 multiframe alignment is every 48 sbi336s frames or 6 ms. therefore c1fp characters are sent every four or every 48 frames. in telecombus mode: encoded over the serial link is the tributary multiframe alignment which is every 4 frames or 500 s. multiframe alignment is required so that a downstream device can extract the t1 or e1 data from the tributary. the multiframe information is preserved by only sending out c1fp characters every four frames. the frame alignment state machine establishes frame alignment over the link and is based on the frame and not the multiframe alignments. when the frame alignment state machine is in the out- of-frame-alignment state, it maintains the current alignment, while searching for a c1fp character. when it finds the c1fp character the state machine transitions to the in-frame- alignment state. while in the in-frame-alignment state the state machine monitors out-of-place c1fp characters. out-of-place c1fp characters are identified by maintaining a frame counter based on the c1fp character. the counter is initialized by the c1fp character when in the out-of- character-alignment state, and is unaffected in the in-character-alignment state. if 3 consecutive c1fps have been found that do not agree with the expected location as defined by the frame counter, the state will change to out-of-frame-alignment state. the frame alignment state machine is also sensitive to character alignment. when the character alignment state machine is in the out-of-character-alignment state, the frame alignment state machine is forced out-of-alignment, and is held in that state until the character alignment state machine transitions to the in-character alignment state.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 62 document id: pmc-2010883, issue 2 figure 9 frame alignment state machine out-of- frame- alignment in-frame- alignment 3 consecutive out-of-place c1fps or out-of-character alignment found c1fp and not (out-of-character alignment) 10.15.5 sbi336s multiframe alignment sbi336s multiframe alignment is communicated across the link by controlling the frequency of the c1fp character. the most frequent transmission of the c1fp character is every four sbi336s frame times. this is the sbi336s multiframe and is used when there are no synchronous tributaries requiring signalling multiframe alignment on the sbi336s bus. when there are synchronous tributaries on the sbi336s bus the c1fp character is transmitted every 48 frame times. this is the cas signaling multiframe and is the lowest common multiple of the 24 frame t1 multiframe and the 16 frame e1 multiframe. the sbi336s multiframe and signaling multiframe alignment is based a free running multiframe counter that is reset with each c1fp character received. under normal operating conditions each received c1fp character will coincide with the free running multiframe counter. sbi336s multiframe alignment is always required, sbi336s signaling multiframe alignment is optional and only required when synchronous tributaries are supported with ds0 level switching. 10.16 outgoing sbi336s tributary translator the outgoing sbi tributary translator block, ostt, processes all timing information and channel associated signaling information for the tributaries on the outgoing sbi bus or buses. input to this block is a 77 mhz sbi stream with all tributaries encoded in an internal format that closely resembles the serial sbi format. this block is transparent in telecombus mode.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 63 document id: pmc-2010883, issue 2 10.16.1 outgoing sbi336s translation this block translates the generic internal sbi format to the external sbi format. a control ram keeps the current configuration of the outgoing sbi bus(es) and the tributaries carried so that it can perform the translation function. common to all tributaries is identification of the first c1 byte. there are unique mappings of the 8b/10b codes for the supported sbi bus link types: asynchronous t1/e1, synchronous (locked) t1/e1, transparent vt1.5/vt2, ds3/e3 and fractional rate links. much of the identification and mapping of a link from serial sbi format is based on the oc1fp frame pulse and a tributaries location relative to that c1 reference. in addition to the oc1fp identification this block identifies multiframe alignment, valid payload, pointer movements for floating tributaries and timing control for decoding from the 8b/10b serial sbi format. 10.17 outgoing sbi336 timing adapter the outgoing sbi336 timing adapter, osta, provides a demultiplexing from a 77.76 mhz sbi336 or telecombus to four outgoing 19.44 mhz sbi or telecombuses. the outgoing timing adapter block also provides a transparent mode when the outgoing interface is already in 77.76 mhz sbi336 or telecombus format. when the sbs is connected to a 19.44 mhz sbi link layer device the justification request signal, just_req, is an output from the sbs and is aligned to the incoming bus. this block re-aligns the internal justification request signal from the internal outgoing sbi336 frame alignment to the incoming sbi frame alignment, marked by ic1fp. when the sbs is connected to a 19.44 mhz sbi physical layer device or any 77.76 mhz sbi336 device, no re-alignment of the justification request is required by this block. 10.18 in-band link controller in order to permit centralized control of distributed nse/sbslite fabrics from the nse microprocessor interface (for applications in which nses are located on fabric cards, and sbslites are located on multiple line cards), an in-band signaling channel is provided between the nse and the sbslite over the serial interface. each nse can control up to 32 sbslites which are attached by the lvds links. the nse/sbslite in-band channel is full duplex, but the nse has active control of the link. the sbslite contains two independent in-band link controllers. one ilc is connected to the working transmit serial lvds link and the other is connected to the protection transmit serial lvds link. the in-band channel is carried in the first 36 columns of four rows of the sbi or telecombus structure, rows 3, 6, 7 and 8. the overall in-band channel capacity is thus 36*4*64kb/s = 9.216mb/s. each 36 bytes per row allocated to the in-band signaling channel is its own in-band message between the end points. four bytes of each 36 byte inband message are reserved for end- to-end control information and error protection, leaving 8.192mb/s available for user data transfer between the end points.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 64 document id: pmc-2010883, issue 2 the data transferred between the end points has no fixed format, effectively providing a clear channel for packet transfer between the attached microprocessors at each of the lvds link terminating devices. using the microprocessor interface, the user is able to send and receive any packet up to 32 bytes in length. the first two bytes of each 36 byte message contains a header and the last two bytes of the message is a crc-16 which detects errors in the message. this in-band channel is expected to be used almost entirely to carry out switching control changes in the sbslites. to configure a ds0 in an sbslite device most often requires a local microprocessor to write to one memory location consisting of a 16-bit address and a 16-bit data. using this as a baseline and assuming an efficient use of the in-band channel bandwidth we can set a maximum of (32bytes/row * 4 rows/frame * 8000 frames/sec / 4 bytes/write) 256,000 ds0 configurations per second. considering that configuring a t1 when switching ds0s requires 27 ds0 writes indicates that the in-band signaling channel bandwidth sets maximum limit of over 9000 t1 configurations per second. in real life these limits will not be achieved but this shows that the in-band link should not be the bottleneck. in telecombus mode this same configuration will require only 3 writes per t1 link. in n+1 protected architectures it is likely that full configuration of a port card will be necessary during the switchover. this would require the entire connection memory be reconfigured. assuming connections for overhead bytes are also reconfigured, the fastest that a complete reconfiguration can take place is 9720 register writes which equates to (9720 writes * 4 bytes/write / (32 bytes/row * 4 rows/frame * 8000 frames/second)) 38 milliseconds. it is also possible that the spare card could hold all the connection configurations for all the port cards it is protecting locally, for even faster switch over. 10.18.1 in-band signaling channel fixed overhead the in-band link controller block generates and terminates two bytes of fixed header and a crc-16 per every 36 byte in-band message. the two byte header provides control and status between devices at the ends of the lvds link. the crc-16 is calculated over the entire 34 byte in-band message and provides the terminating end the ability to detect errors in the in-band message. the format of the in-band message and header bytes is shown in figure 10 and figure 11. figure 10 in-band signaling channel message format 1 byte 1 byte 32 bytes 2 bytes header1 header2 free format information crc-16
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 65 document id: pmc-2010883, issue 2 figure 11 in-band signaling channel header format header1 bit 7 bit 6 bit 5 bit4 bit3 bit2 bit1 bit 0 valid link[1:0] page[1:0] user[2:0] header2 bit 7 bit 6 bit 5 bit4 bit3 bit2 bit1 bit 0 aux[7:0] table 23 in-band message header fields field name received by the sbslite transmitted by the sbslite valid message slot contains a valid message(1) or is empty(0). if empty this message will not be put into rx message fifo (other header information processed as usual) message slot contains a valid message(1) or is empty(0). the header and crc bytes are transmitted regardless of the state of this bit. link[1:0]# each bit indicates which link to use, working(0) or protect(1). other algorithms are possible in indicate working or protect over these 2 bits. each bit shows current link in use, working(0) or protect(1). other algorithms are possible in indicate working or protect over these 2 bits. these bits are transmitted immediately. page[1:0]# each bit indicates which configuration page to use, page (1) or page (0) for the corresponding msu. page[1] controls the imsu configuration page and page[0] controls the omsu configuration page. each bit shows current control page in use, page (1) or page (0) for the corresponding msu. page[1] indicates the imsu configuration page and page[0] indicates the omsu configuration page only transmitted from the beginning of the first message of the frame user[2:0]# user defined bits which may be read through the microprocessor interface. user[2] is also output from the sbslite on the ouser2 pin. user defined bits. user[2] is sourced from the iuser2 input to the sbslite. user[1:0] are sourced from an internal register. transmitted immediately. aux[7:0]# user defined auxiliary register indication. user defined auxiliary register indication. transmitted immediately. #change in these bits(received side) will not be processed if the received message crc-16 indicates an error. interrupts can be generated when crc errors are detected or the user or link bits change state. there is no inherent flow control provided by the in-band link controller. the attached microprocessor is able to provide flow control via interrupts when the in-band message first-in first out (fifo) overflows and via the user bits in the header.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 66 document id: pmc-2010883, issue 2 as each message arrives, the crc-16 and valid bit is checked; if the valid bit is not set the message is discarded, if it fails the crc check it is flagged as being in error and an interrupt is generated if enabled. if the crc-16 is ok, regardless of the valid bit, the page link, user and aux bits are passed on immediately. if the fifo erroneously overflows, an interrupt is generated. 10.19 microprocessor interface the microprocessor interface block provides normal and test mode registers, and logic required to connect to the microprocessor interface. the normal mode registers are required for normal operation, and test mode registers are used to enhance testability of the sbslite. address register 000h sbslite master reset 001h sbslite master configuration 002h sbslite revision/part number 003h sbslite part number/manufacturer id 004h sbslite master bypass 005h sbslite master spe control #1 006h sbslite master spe control #2 007h sbslite receive synchronization delay 008h sbslite in-band link user bits 009h ? 00fh sbslite reserved 010h sbslite master interrupt source 011h sbslite interrupt register 012h sbslite interrupt enable register 013h sbslite loopback configuration 014h sbslite master clock monitor #1, accumulation trigger 015h sbslite master clock monitor #2 016h sbslite master interrupt enable register 017h sbslite free user register 020h ista incoming parity configuration 021h ista incoming parity status 022h ista telecombus configuration 023h ista reserved 024h ? 027h reserved 028h imsu configuration 029h imsu interrupt status and memory page update 02ah imsu indirect time switch address 02bh imsu indirect time switch data 02ch ? 02fh reserved 030h icasm cas enable indirect address 031h icasm cas enable indirect control 032h icasm cas enable indirect data
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 67 document id: pmc-2010883, issue 2 033h icasm reserved 034h ? 037h reserved 038h istt control ram indirect access address register 039h istt control ram indirect access control register 03ah istt control ram indirect access data register 03bh istt reserved 03ch ? 03fh reserved 040h ostt control ram indirect access address register 041h ostt control ram indirect access control register 042h ostt control ram indirect access data register 043h ostt reserved 044h ? 047h reserved 048h omsu configuration 049h omsu interrupt status and memory page update 04ah omsu indirect time switch address 04bh omsu indirect time switch data 04ch ? 04fh reserved 050h ocasm indirect address 051h ocasm indirect control 052h ocasm indirect data 053h ocasm reserved 054h ? 05fh reserved 060h osta outgoing configuration and parity 061h osta outgoing j1 configuration 062h osta outgoing v1 configuration 063h osta h1-h2 pointer value 064h osta alternate h1-h2 pointer value 065h osta h1-h2 pointer selection 066h osta reserved 067h osta reserved 068h osta reserved 069h ? 06fh osta reserved 070h wpp indirect address 071h wpp indirect data 072h wpp generator payload configuration 073h wpp monitor payload configuration 074h wpp monitor byte error interrupt status 075h wpp monitor byte error interrupt enable 076h reserved 077h reserved 078h reserved 079h wpp monitor synchronization interrupt status
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 68 document id: pmc-2010883, issue 2 07ah wpp monitor synchronization interrupt enable 07bh wpp monitor synchronization state 07ch wpp performance counters transfer trigger 07dh ? 07fh wpp reserved 080h ppp indirect address 081h ppp indirect data 082h ppp generator payload configuration 083h ppp monitor payload configuration 084h ppp monitor byte error interrupt status 085h ppp monitor byte error interrupt enable 086h reserved 087h reserved 088h reserved 089h ppp monitor synchronization interrupt status 08ah ppp monitor synchronization interrupt enable 08bh ppp monitor synchronization state 08ch ppp performance counters transfer trigger 08dh ? 08fh ppp reserved 090h wilc transmit message fifo data high 091h wilc transmit message fifo data low 092h wilc reserved 093h wilc transmit control 094h wilc reserved 095h wilc transmit status and fifo synch 096h wilc receive message fifo data high 097h wilc receive message fifo data low 098h wilc reserved 099h wilc receive control 09ah wilc receive auxiliary 09bh wilc receive status and fifo synch 09ch wilc reserved 09dh wilc interrupt enable and control 09eh wilc reserved 09fh wilc interrupt reason 0a0h pilc transmit message fifo data high 0a1h pilc transmit message fifo data low 0a2h pilc reserved 0a3h pilc transmit control 0a4h pilc reserved 0a5h pilc transmit status and fifo synch 0a6h pilc receive message fifo data high 0a7h pilc receive message fifo data low
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 69 document id: pmc-2010883, issue 2 0a8h pilc reserved 0a9h pilc receive control 0aah pilc receive auxiliary 0abh pilc receive status and fifo synch 0ach pilc reserved 0adh pilc interrupt enable and control 0aeh pilc reserved 0afh pilc interrupt reason 0b0h tw8e control and status 0b1h tw8e interrupt status 0b2h tw8e timeslot configuration #1 0b3h tw8e timeslot configuration #2 0b4h tw8e test pattern 0b5h tw8e analog control 0b6h ? 0b7h tw8e reserved 0b8h tp8e control and status 0b9h tp8e interrupt status 0bah tp8e timeslot configuration #1 0bbh tp8e timeslot configuration #2 0bch tp8e test pattern 0bdh tp8e analog control 0beh ? 0bfh tp8e reserved 0c0h rw8d control and status 0c1h rw8d interrupt status 0c2h rw8d line code violation count 0c3h rw8d analog control #1 0c4h ? 0c7h rw8d reserved 0c8h rp8d control and status 0c9h rp8d interrupt status 0cah rp8d line code violation count 0cbh rp8d analog control 0cch ? 0cfh rp8d reserved 0d0h cstr control 0d1h cstr interrupt enable and status 0d2h cstr interrupt indication 0d3h cstr reserved 0d4h ? 0dfh reserved 0e0h refdll configuration 0e1h refdll reserved 0e2h refdll reserved 0e3h refdll control status 0e4h ? 0e7h reserved
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 70 document id: pmc-2010883, issue 2 0e8h sysdll configuration 0e9h sysdll reserved 0eah sysdll reserved 0ebh sysdll control status 0ech ? 0ffh reserved 100h sbslite master test 101h ? 1ffh reserved for test note 1. for all register accesses, csb must be set low.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 71 document id: pmc-2010883, issue 2 11 normal mode register description normal mode registers are used to configure and monitor the operation of the sbslite. normal mode registers (as opposed to test mode registers) are selected when a[8] is set low. notes on normal mode register bits 1. writing values into unused register bits has no effect. however, to ensure software compatibility with future, feature-enhanced versions of this product, unused register bits must be written with logic zero. reading back unused bits can produce either a logic one or a logic zero; hence, unused register bits should be masked off by software when read. 2. all configuration bits that can be written into can also be read back. this allows the processor controlling the sbslite to determine the programming state of the block. 3. writeable normal mode register bits are cleared to logic zero upon reset unless otherwise noted. 4. writing into read-only normal mode register bit locations does not affect sbslite operation unless otherwise noted.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 72 document id: pmc-2010883, issue 2 register 000h: sbslite master reset bit type function default bit 15 unused 0 bit 14 unused 0 bit 13 unused 0 bit 12 unused 0 bit 11 unused 0 bit 10 unused 0 bit 9 unused 0 bit 8 unused 0 bit 7 unused 0 bit 6 unused 0 bit 5 r/w reserved 0 bit 4 r/w reserved 0 bit 3 r/w reserved 0 bit 2 r/w reserved 0 bit 1 r/w areset 0 bit 0 r/w dreset 0 reserved these bits must be set low for proper operation of the sbslite. areset the analogue reset bit (areset) allows the analogue circuitry in the sbslite to be reset and disabled under software control. when the areset bit is set high, all sbslite analogue circuitry is held in reset and disabled. this bit is not self-clearing. therefore, it must be set low to bring the affected circuitry out of reset and enable it. holding sbslite in analogue reset state places it into a low power, disabled mode. a hardware reset clears the areset bit, thus negating the analogue software reset. dreset the digital reset bit (dreset) allows the digital circuitry in the sbslite to be reset under software control. when the dreset bit is set high, all sbslite digital circuitry is held in reset with the exception of this register. this bit is not self-clearing. therefore, it must be set low to bring the affected circuitry out of reset. holding sbslite in digital reset state places it into a low power, digital stand-by mode. a hardware reset clears the dreset bit, thus negating the digital software reset.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 73 document id: pmc-2010883, issue 2 register 001h: sbslite master configuration bit type function default bit 15 unused 0 bit 14 r/w icmp_src[1] 0 bit 13 r/w icmp_src[0] 0 bit 12 r/w icmp_val 0 bit 11 unused 0 bit 10 r/w ocmp_src[1] 0 bit 9 r/w ocmp_src[0] 0 bit 8 r/w ocmp_val 0 bit 7 r/w rwsel_src 0 bit 6 r/w rwsel_val 1 bit 5 r/w reserved[1] 0 bit 4 r/w column_mode 0 bit 3 r/w phy_sbi 1 bit 2 r/w mf_48 0 bit 1 r/w telecom_bus 0 bit 0 r/w reserved[0] 0 icmp_src[1:0] the icmp_src[1:0] bits select the source for the incoming connection memory page information. icmp_src[1:0] source 00 icmp_val register bit 01 icmp input pin 10 page bit from the active ilc (as determined by the rwsel_val bit or rwsel input) 11 reserved icmp_val the icmp_val bit controls the selection of the connection memory page in each incoming memory switch unit, imsu. when icmp_val is a logic one, connection memory page 1 is selected. when icmp_val is a logic zero, connection memory page 0 is selected. icmp_val is sampled at the c1 byte position as defined by the incoming frame pulse signal (ic1fp). changes to the connection memory page selection are synchronized to the frame boundary of the next frame (in telecombus mode), 4 frame multiframe (in sbi mode without cas), or 48 frame multiframe (in sbi mode with cas). this bit is only used when icmp_src[1:0] = ?b00.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 74 document id: pmc-2010883, issue 2 ocmp_src[1:0] the ocmp_src[1:0] bits select the source for the outgoing connection memory page information. ocmp_src[1:0] source 00 ocmp_val register bit 01 ocmp input pin 10 page bit from the active ilc (as determined by the rwsel_val bit or rwsel input) 11 reserved ocmp_val the ocmp_val bit controls the selection of the connection memory page in each outgoing memory switch unit, omsu. when ocmp_val is a logic one, connection memory page 1 is selected. when ocmp_val is a logic zero, connection memory page 0 is selected. ocmp_val is sampled at the c1 byte position as defined by the receive frame pulse signal (rc1fp). changes to the connection memory page selection are synchronized to the frame boundary of the next frame (in telecombus mode), 4 frame multiframe (in sbi mode without cas), or 48 frame multiframe (in sbi mode with cas). this bit is only used when ocmp_src[1:0] = ?b00. rwsel_src the rwsel_src bit selects the source for the selection of which link, the working or the protect, is active. when rwsel_src is a logic zero, the rwsel_val register bit is used as the source for selecting the active link. when rwsel_src is a logic one, the rwsel input is used as the source for selecting the active link. rwsel_val the rwsel_val bit selects between the receive working and protect links when the rwsel_src is a logic zero. when rwsel_val is a logic one, the working link is selected and the sbslite listens to the data from the rpwrk and rnwrk inputs. when rwsel_val is a logic zero, the protect link is selected and the sbslite listens to the data from the rpprot and rnprot inputs. this bit has no effect when the rwsel_src bit is a logic one or when the parallel interface is used (parallel_mode = ?b1). reserved[1] this bit must be set to a logic zero for correct operation of the sbslite.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 75 document id: pmc-2010883, issue 2 column_mode the column_mode bit selects between column switching and ds0 switching. when column_mode is set to a logic one, column switching is enabled and the sbslite is configured to switch columns within the sbi336 or telecombus. when column_mode is set to a logic zero, ds0 switching is enabled and the sbslite is configured to switch ds0?s within the sbi336 bus. ds0 switching is not permitted in telecombus mode. phy_sbi the phy_sbi bit configures the direction of the just_req input/output signals on the incoming and outgoing buses. when phy_sbi is set to a logic one, the sbslite is configured to be connected to a phy device and the just_req signal is an input. when phy_sbi is set to a logic zero, the sbslite is configured to be connected to a link layer device and the just_req signal is an output. mf_48 the mf_48 bit selects between 4 frame multiframe mode or 48 frame multiframe mode on the sbi336 bus. when mf_48 is a logic one, 48 frame mode is selected. ic1fp is expected once every 48 frames and oc1fp is output every 48 frames, indicating cas signaling multiframe alignment. when mf_48 is a logic zero, 4 frame mode is selected. ic1fp is expected once every 4 frames and oc1fp is output every 4 frames. this bit has no effect when in telecombus mode (telecom_bus = ?b1). telecom_bus the telecom_bus bit selects between telecombus and sbi bus modes on the incoming and outgoing buses. when telecom_bus is set to a logic one, telecombus mode is selected and all frame pulses must mark c1j1v1 positions. when telecom_bus is set to a logic zero, sbi bus mode is selected and the all frame pulses only mark the c1 position. reserved[0] this bit must be set to a logic one for proper operation of the sbslite.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 76 document id: pmc-2010883, issue 2 register 002h: sbslite version/part number bit type function default bit 15 r version[3] 0 bit 14 r version[2] 0 bit 13 r version[1] 0 bit 12 r version[0] 0 bit 11 r part_number[15] 1 bit 10 r part_number[14] 0 bit 9 r part_number[13] 0 bit 8 r part_number[12] 0 bit 7 r part_number[11] 0 bit 6 r part_number[10] 1 bit 5 r part_number[9] 1 bit 4 r part_number[8] 0 bit 3 r part_number[7] 0 bit 2 r part_number[6] 0 bit 1 r part_number[5] 0 bit 0 r part_number[4] 1 version[3:0] the version[3:0] bits report the binary revision number of the sbslite silicon. part_number[15:4] the part number[15:4] bits represent the 12 most significant bits of the part number of the sbslite device.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 77 document id: pmc-2010883, issue 2 register 003h: sbslite part number/manufacturer id bit type function default bit 15 r part_number[3] 0 bit 14 r part_number[2] 0 bit 13 r part_number[1] 0 bit 12 r part_number[0] 1 bit 11 r manufacturer_id[10] 0 bit 10 r manufacturer_id[9] 0 bit 9 r manufacturer_id[8] 0 bit 8 r manufacturer_id[7] 0 bit 7 r manufacturer_id[6] 1 bit 6 r manufacturer_id[5] 1 bit 5 r manufacturer_id[4] 0 bit 4 r manufacturer_id[3] 0 bit 3 r manufacturer_id[2] 1 bit 2 r manufacturer_id[1] 1 bit 1 r manufacturer_id[0] 0 bit 0 r jid 1 part_number[3:0] the part number[3:0] bits represent the 4 least significant bits of the part number of the sbslite device. manufacturer_id[10:0] the manufacturer id[10:0] bits represent the 11 bit manufacturer?s code assigned to pmc-sierra, inc. for inclusion in the jtag boundary scan identification code. for more information on jtag boundary scan, refer to section 12. jid the jid bit is bit 0 in the jtag identification code.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 78 document id: pmc-2010883, issue 2 register 004h: sbslite master bypass register bit type function default bit 15 unused 0 bit 14 unused 0 bit 13 unused 0 bit 12 unused 0 bit 11 unused 0 bit 10 unused 0 bit 9 unused 0 bit 8 unused 0 bit 7 unused 0 bit 6 unused 0 bit 5 r/w imsu_bypass 0 bit 4 r/w icase_bypass 0 bit 3 r/w icasm_bypass 0 bit 2 r/w omsu_bypass 0 bit 1 r/w ocase_bypass 0 bit 0 r/w ocasm_bypass 0 imsu_bypass the imsu_bypass bit is used to bypass the functionality of the imsu block. when imsu_bypass is a logic one, the incoming memory switch is bypassed and the incoming data bus is passed to the transmit data bus unmodified. this eliminates the one frame delay through the imsu and places the imsu in a low power mode. when imsu_bypass is a logic zero, the imsu is not bypassed and must be configured. icase_bypass the icase_bypass bit is used to bypass the functionality of the icase block. when icase_bypass is a logic one, the incoming cas extractor is bypassed and the cas bits are not extracted from the sbi336 bus. this places the icase block in a low power mode. when icase_bypass is a logic zero, the icase is not bypassed and the cas bits are extracted from the sbi336 bus. icasm_bypass the icasm_bypass bit is used to bypass the functionality of the icasm block. when icasm_bypass is a logic one, the incoming cas merge block is bypassed and the cas bits are not inserted into the sbi336 bus. this places the icasm block in a low power mode. when icasm_bypass is a logic zero, the icasm is not bypassed and the cas bits are inserted into the sbi336 bus.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 79 document id: pmc-2010883, issue 2 omsu_bypass the omsu_bypass bit is used to bypass the functionality of the omsu block. when omus_bypass is a logic one, the outgoing memory switch is bypassed and the receive data bus is passed to the outgoing data bus unmodified. this eliminates the one frame delay through the omsu and places the omsu in a low power mode. when omsu_bypass is a logic zero, the omsu is not bypassed and must be configured. ocase_bypass the ocase_bypass bit is used to bypass the functionality of the ocase block. when ocase_bypass is a logic one, the transmit cas extractor is bypassed and the cas bits are not extracted from the sbi336 bus. this places the ocase block in a low power mode. when ocase_bypass is a logic zero, the ocase is not bypassed and the cas bits are extracted from the sbi336 bus. ocasm_bypass the ocasm_bypass bit is used to bypass the functionality of the ocasm block. when ocasm_bypass is a logic one, the transmit cas merge block is bypassed and the cas bits are not inserted into the sbi336 bus. this places the ocasm block in a low power mode. when ocasm_bypass is a logic zero, the ocasm is not bypassed and the cas bits are inserted into the sbi336 bus.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 80 document id: pmc-2010883, issue 2 register 005h: sbslite master spe control #1 bit type function default bit 15 unused 0 bit 14 unused 0 bit 13 unused 0 bit 12 unused 0 bit 11 unused 0 bit 10 unused 0 bit 9 unused 0 bit 8 unused 0 bit 7 r/w sbi4_spe3_typ[1] 0 bit 6 r/w sbi4_spe3_typ[0] 0 bit 5 r/w sbi3_spe3_typ[1] 0 bit 4 r/w sbi3_spe3_typ[0] 0 bit 3 r/w sbi2_spe3_typ[1] 0 bit 2 r/w sbi2_spe3_typ[0] 0 bit 1 r/w sbi1_spe3_typ[1] 0 bit 0 r/w sbi1_spe3_typ[0] 0
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 81 document id: pmc-2010883, issue 2 register 006h: sbslite master spe control #2 bit type function default bit 15 r/w sbi4_spe2_typ[1] 0 bit 14 r/w sbi4_spe2_typ[0] 0 bit 13 r/w sbi3_spe2_typ[1] 0 bit 12 r/w sbi3_spe2_typ[0] 0 bit 11 r/w sbi2_spe2_typ[1] 0 bit 10 r/w sbi2_spe2_typ[0] 0 bit 9 r/w sbi1_spe2_typ[1] 0 bit 8 r/w sbi1_spe2_typ[0] 0 bit 7 r/w sbi4_spe1_typ[1] 0 bit 6 r/w sbi4_spe1_typ[0] 0 bit 5 r/w sbi3_spe1_typ[1] 0 bit 4 r/w sbi3_spe1_typ[0] 0 bit 3 r/w sbi2_spe1_typ[1] 0 bit 2 r/w sbi2_spe1_typ[0] 0 bit 1 r/w sbi1_spe1_typ[1] 0 bit 0 r/w sbi1_spe1_typ[0] 0 sbix_spey_typ[1:0] the sbix_spey_typ[1:0] bits select the spe type for the specified spe within the specified sbi bus. the types for each spe are independently configured with possible types being t1, e1, ds3/e3 and fractional rate links. these bits only have an effect when in sbi mode (telecom_bus = ?b0 in the sbs master configuration register). the setting for sbix_spey_typ[1:0] are: sbix_spey_typ[1:0] payload type 00 t1 01 e1 10 ds3/e3 11 fractional rate
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 82 document id: pmc-2010883, issue 2 register 007h: sbslite receive synchronization delay bit type function default bit 15 r tip 0 bit 14 unused 0 bit 13 r/w rc1fpdly[13] 0 bit 12 r/w rc1fpdly[12] 0 bit 11 r/w rc1fpdly[11] 0 bit 10 r/w rc1fpdly[10] 0 bit 9 r/w rc1fpdly[9] 0 bit 8 r/w rc1fpdly[8] 0 bit 7 r/w rc1fpdly[7] 0 bit 6 r/w rc1fpdly[6] 0 bit 5 r/w rc1fpdly[5] 0 bit 4 r/w rc1fpdly[4] 0 bit 3 r/w rc1fpdly[3] 0 bit 2 r/w rc1fpdly[2] 0 bit 1 r/w rc1fpdly[1] 0 bit 0 r/w rc1fpdly[0] 0 tip the transfer in progress bit (tip) reports the status of latching performance monitor counting into holding registers. tip is set high when a transfer is initiated by a write access to the sbslite master signal monitor #1, accumulation trigger register (014h). it is set low when all the counters in the sbslite have transferred their values to holding registers. the updated counts are now available for reading at the designated registers. rc1fpdly[13:0] the receive transport frame delay bits (rc1fpdly[13:0]) controls the delay, in sysclk cycles, inserted by the sbslite before processing the c1 characters delivered by the receive serial data links. rc1fpdly should be set such that after the specified delay the active receive link should have delivered the c1 character. the relationships between rc1fp, rc1fpdly and the receive serial links is described in the functional timing section.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 83 document id: pmc-2010883, issue 2 register 008h: sbslite in-bank link user bits bit type function default bit 15 unused 0 bit 14 unused 0 bit 13 unused 0 bit 12 unused 0 bit 11 unused 0 bit 10 unused 0 bit 9 unused 0 bit 8 unused 0 bit 7 unused 0 bit 6 unused 0 bit 5 unused 0 bit 4 unused 0 bit 3 r/w txwuser[1] 0 bit 2 r/w txwuser[0] 0 bit 1 r/w txpuser[1] 0 bit 0 r/w txpuser[0] 0 txwuser[1:0] the transmit working user bits (txwuser[1:0]) contain the values to be inserted in the user[1:0] bits in the header of the working in-band signaling channel. txpuser[1:0] the transmit protection user bits (txwuser[1:0]) contain the values to be inserted in the user[1:0] bits in the header of the protection in-band signaling channel.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 84 document id: pmc-2010883, issue 2 register 010h: sbslite master interrupt source bit type function default bit 15 unused 0 bit 14 r sbs_int x bit 13 r imsu_int x bit 12 r omsu_int x bit 11 r refdll_int x bit 10 r sysdll_int x bit 9 r cstr_int x bit 8 r tw8e_int x bit 7 r tp8e_int x bit 6 r rw8d_int x bit 5 r rp8d_int x bit 4 r wpp_int x bit 3 r ppp_int x bit 2 r wilc_int x bit 1 r pilc_int x bit 0 r ista_int x sbs_int if the sbs_int bit is a logic one, an interrupt has been generated by the top level circuitry. the sbslite interrupt register must be read to clear this interrupt. imsu_int if the imsu_int bit is a logic one, an interrupt has been generated by the imsu block. the imsu interrupt register must be read to clear this interrupt. omsu_int if the omsu_int bit is a logic one, an interrupt has been generated by the omsu block. the omsu interrupt register must be read to clear this interrupt. refdll_int if the refdll_int bit is a logic one, an interrupt has been generated by the refdll block. the refdll interrupt register must be read to clear this interrupt. sysdll_int if the sysdll_int bit is a logic one, an interrupt has been generated by the sysdll block. the sysdll interrupt register must be read to clear this interrupt.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 85 document id: pmc-2010883, issue 2 cstr_int if the cstr_int bit is a logic one, an interrupt has been generated by the cstr block. the cstr interrupt register must be read to clear this interrupt. tw8e_int if the tw8e_int bit is a logic one, an interrupt has been generated by the tw8e block. the tw8e interrupt register must be read to clear this interrupt. tppp_int if the tp8e_int bit is a logic one, an interrupt has been generated by the tp8e block. the tp8e interrupt register must be read to clear this interrupt. rw8d_int if the rw8d_int bit is a logic one, an interrupt has been generated by the rw8d block. the rw8d interrupt register must be read to clear this interrupt. rp8d_int if the rp8d_int bit is a logic one, an interrupt has been generated by the rp8d block. the rp8d interrupt register must be read to clear this interrupt. wpp_int if the wpp_int bit is a logic one, an interrupt has been generated by the wpp block. the wpp interrupt register must be read to clear this interrupt. ppp_int if the ppp_int bit is a logic one, an interrupt has been generated by the ppp block. the ppp interrupt register must be read to clear this interrupt. wilc_int if the wilc_int bit is a logic one, an interrupt has been generated by the wilc block. the wilc interrupt register must be read to clear this interrupt. pilc_int if the pilc_int bit is a logic one, an interrupt has been generated by the pilc block. the pilc interrupt register must be read to clear this interrupt.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 86 document id: pmc-2010883, issue 2 ista_int if the ista_int bit is a logic one, an interrupt has been generated by the ista block. the ista interrupt register must be read to clear this interrupt.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 87 document id: pmc-2010883, issue 2 register 011h: sbslite interrupt register bit type function default bit 15 unused 0 bit 14 unused 0 bit 13 unused 0 bit 12 unused 0 bit 11 unused 0 bit 10 unused 0 bit 9 unused 0 bit 8 unused 0 bit 7 unused 0 bit 6 r icmp_int x bit 5 r ocmp_int x bit 4 r reserved x bit 3 r reserved x bit 2 r reserved x bit 1 r reserved x bit 0 r reserved x icmp_int the icmp_int bit is set to a logic one when the icmp input is sampled by the sbslite. in telecombus mode, icmp is sampled during the first c1 position of every frame, as marked by ic1fp. in sbi mode, icmp is sampled during the first c1 position of every 4 or 48 frame multiframe, as marked by ic1fp. this interrupt may be helpful in scheduling configuration page changes in the imsu. this interrupt is enabled with the icmpe bit in the sbslite interrupt enable register. this interrupt bit will be cleared when read. ocmp_int the ocmp_int bit is set to a logic one when the ocmp input is sampled by the sbslite. in telecombus mode, ocmp is sampled during the first c1 position of every frame, as marked by rc1fp. in sbi mode, ocmp is sampled during the first c1 position of every 4 or 48 frame multiframe, as marked by rc1fp. this interrupt may be helpful in scheduling configuration page changes in the omsu. this interrupt is enabled with the ocmpe bit in the sbslite interrupt enable register. this interrupt bit will be cleared when read. reserved the reserved bits should be ignored when this register is read.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 88 document id: pmc-2010883, issue 2 register 012h: sbslite interrupt enable register bit type function default bit 15 unused 0 bit 14 unused 0 bit 13 unused 0 bit 12 unused 0 bit 11 unused 0 bit 10 unused 0 bit 9 unused 0 bit 8 unused 0 bit 7 unused 0 bit 6 r/w icmpe 0 bit 5 r/w ocmpe 0 bit 4 r/w reserved 0 bit 3 r/w reserved 0 bit 2 r/w reserved 0 bit 1 r/w reserved 0 bit 0 r/w reserved 0 icmpe the icmpe interrupt enable bit (icmpe) is an active high interrupt enable. when icmpe is set to a logic one, an interrupt will be asserted on the intb output when the icmp_int bit in the sbslite interrupt register is set high. when icmpe is set to a logic zero, the icmp_int bit will not cause an interrupt. ocmpe the ocmpe interrupt enable bit (ocmpe) is an active high interrupt enable. when ocmpe is set to a logic one, an interrupt will be asserted on the intb output when the ocmp_int bit in the sbslite interrupt register is set high. when ocmpe is set to a logic zero, the ocmp_int bit will not cause an interrupt. reserved the reserved bits must be set to a logic zero.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 89 document id: pmc-2010883, issue 2 register 013h: sbslite loopback configuration bit type function default bit 15 unused 0 bit 14 unused 0 bit 13 unused 0 bit 12 unused 0 bit 11 unused 0 bit 10 unused 0 bit 9 unused 0 bit 8 unused 0 bit 7 unused 0 bit 6 unused 0 bit 5 unused 0 bit 4 unused 0 bit 3 unused 0 bit 2 r/w reserved 0 bit 1 r/w t82r8loop 0 bit 0 r/w t2rloop 0 reserved the reserved bit must be set to a logic zero. t82r8loop the t82r8loop bit enables a diagnostic loopback from the transmit 8b/10b encoded bus to the receive 8b/10b encoded bus. when t82r8loop is a logic one, the entire sbi336 or telecombus is looped back from the output of the tw8e and tp8e to the input of the rw8d and rp8d, respectively. when t82r8loop is a logic zero, no loopback is performed. t2rloop the t2rloop bit enables a diagnostic loopback from the transmit interface to the receive interface. when t2rloop is a logic one, the entire sbi336 or telecombus is looped back from the output of the icasm to the input of the ocase. when t2rloop is a logic zero, no loopback is performed.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 90 document id: pmc-2010883, issue 2 register 014h: sbslite master signal monitor #1, accumulation trigger bit type function default bit 15 unused 0 bit 14 unused 0 bit 13 unused 0 bit 12 unused 0 bit 11 unused 0 bit 10 r reserved x bit 9 r reserved x bit 8 r reserved x bit 7 r reserved x bit 6 r rc1fpa x bit 5 r sysclka x bit 4 r srefclka x bit 3 r reserved x bit 2 r reserved x bit 1 r reserved x bit 0 r ic1fpa x this register provides activity monitoring on major sbslite inputs. when a monitored input makes a low to high transition, the corresponding register bit is set high. the bit will remain high until this register is read, at which point, all the bits in this register are cleared. bits that depend on multiple inputs making a low to high transition must have each input make a low to high transition between subsequent reads before the activity bit will be set high. the corresponding register bit reading low indicates a lack of transitions. this register should be read periodically to detect for stuck at conditions. writing to this register delimits the accumulation intervals in the various performance monitor accumulation registers. counts accumulated in those registers are transferred to holding registers where they can be read. the counters themselves are then cleared to begin accumulating events for a new accumulation interval. to prevent loss of data, accumulation intervals must be 1.0 second or shorter. the bits in this register are not affected by write accesses. reserved the reserved bits should be ignored when this register is read. rc1fpa the rc1fp active bit (rc1fpa) detects low to high transitions on the rc1fp input. rc1fpa is set high on a rising edge of rc1fp, and is set low when this register is read.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 91 document id: pmc-2010883, issue 2 sysclka the sysclk active bit (sysclka) detects low to high transitions on the sysclk input. sysclka is set high on a rising edge of sysclk, and is set low when this register is read. srefclka the srefclk active bit (srefclka) detects low to high transitions on the srefclk input. srefclka is set high on a rising edge of srefclk, and is set low when this register is read. ic1fpa the ic1fp active bit (ic1fpa) detects low to high transitions on the ic1fp input. ic1fpa is set high on a rising edge of ic1fp, and is set low when this register is read.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 92 document id: pmc-2010883, issue 2 register 015h: sbslite master signal monitor #2 bit type function default bit 15 r reserved x bit 14 r reserved x bit 13 r reserved x bit 12 r itpla x bit 11 r reserved x bit 10 r reserved x bit 9 r reserved x bit 8 r iv5a x bit 7 r reserved x bit 6 r reserved x bit 5 r reserved x bit 4 r ipla x bit 3 r reserved x bit 2 r reserved x bit 1 r reserved x bit 0 r idataa x this register provides activity monitoring on major sbslite inputs. when a monitored input makes a low to high transition, the corresponding register bit is set high. the bit will remain high until this register is read, at which point, all the bits in this register are cleared. bits that depend on multiple inputs making a low to high transition must have each input make a low to high transition between subsequent reads before the activity bit will be set high. the corresponding register bit reading low indicates a lack of transitions. this register should be read periodically to detect for stuck at conditions. itpla the itpl active bit (itpla) detects low to high transitions on the itpl input. itpla is set high when a rising edge has been observed on the itpl input, and is set low when this register is read. iv5a the iv5 active bit (iv5a) detects low to high transitions on the iv5 input. iv5a is set high when a rising edge has been observed on the iv5 input, and is set low when this register is read. ipla the ipl active bit (ipla) detects low to high transitions on the ipl input. ipla is set high when a rising edge has been observed on the ipl input, and is set low when this register is read.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 93 document id: pmc-2010883, issue 2 idataa the idata active bit (idataa) detects low to high transitions on the idata input bus. idataa is set high when rising edges have been observed on all the signals on the idata[7:0] bus, and is set low when this register is read.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 94 document id: pmc-2010883, issue 2 register 016h: sbslite master interrupt enable bit type function default bit 15 r/w inte 0 bit 14 r/w sbse 0 bit 13 r/w imsue 0 bit 12 r/w omsue 0 bit 11 r/w refdlle 0 bit 10 r/w sysdlle 0 bit 9 r/w cstre 0 bit 8 r/w tw8ee 0 bit 7 r/w tp8ee 0 bit 6 r/w rw8de 0 bit 5 r/w rp8de 0 bit 4 r/w wppe 0 bit 3 r/w pppe 0 bit 2 r/w wilce 0 bit 1 r/w pilce 0 bit 0 r/w istae 0 sbs_int if the sbs_int bit is a logic one, an interrupt has been generated by the top level circuitry. the sbslite interrupt register must be read to clear this interrupt. imsu_int if the imsu_int bit is a logic one, an interrupt has been generated by the imsu block. the imsu interrupt register must be read to clear this interrupt. omsu_int if the omsu_int bit is a logic one, an interrupt has been generated by the omsu block. the omsu interrupt register must be read to clear this interrupt. refdll_int if the refdll_int bit is a logic one, an interrupt has been generated by the refdll block. the refdll interrupt register must be read to clear this interrupt. sysdll_int if the sysdll_int bit is a logic one, an interrupt has been generated by the sysdll block. the sysdll interrupt register must be read to clear this interrupt.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 95 document id: pmc-2010883, issue 2 cstr_int if the cstr_int bit is a logic one, an interrupt has been generated by the cstr block. the cstr interrupt register must be read to clear this interrupt. tw8e_int if the tw8e_int bit is a logic one, an interrupt has been generated by the tw8e block. the tw8e interrupt register must be read to clear this interrupt. tppp_int if the tp8e_int bit is a logic one, an interrupt has been generated by the tp8e block. the tp8e interrupt register must be read to clear this interrupt. rw8d_int if the rw8d_int bit is a logic one, an interrupt has been generated by the rw8d block. the rw8d interrupt register must be read to clear this interrupt. rp8d_int if the rp8d_int bit is a logic one, an interrupt has been generated by the rp8d block. the rp8d interrupt register must be read to clear this interrupt. wpp_int if the wpp_int bit is a logic one, an interrupt has been generated by the wpp block. the wpp interrupt register must be read to clear this interrupt. ppp_int if the ppp_int bit is a logic one, an interrupt has been generated by the ppp block. the ppp interrupt register must be read to clear this interrupt. wilc_int if the wilc_int bit is a logic one, an interrupt has been generated by the wilc block. the wilc interrupt register must be read to clear this interrupt. pilc_int if the pilc_int bit is a logic one, an interrupt has been generated by the pilc block. the pilc interrupt register must be read to clear this interrupt.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 96 document id: pmc-2010883, issue 2 ista_int if the ista_int bit is a logic one, an interrupt has been generated by the ista block. the ista interrupt register must be read to clear this interrupt.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 97 document id: pmc-2010883, issue 2 register 017h: sbslite free user register bit type function default bit 15 unused 0 bit 14 unused 0 bit 13 unused 0 bit 12 unused 0 bit 11 unused 0 bit 10 unused 0 bit 9 unused 0 bit 8 unused 0 bit 7 r/w free[7] 0 bit 6 r/w free[6] 0 bit 5 r/w free[5] 0 bit 4 r/w free[4] 0 bit 3 r/w free[3] 0 bit 2 r/w free[2] 0 bit 1 r/w free[1] 0 bit 0 r/w free[0] 0 free[7:0] the software id register (free) holds whatever value is written into it. reset clears the contents of this register. this register has no impact on the operation of the sbslite.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 98 document id: pmc-2010883, issue 2 register 020h: ista incoming parity configuration bit type function default bit 15 r/w reserved 0 bit 14 r/w reserved 0 bit 13 r/w reserved 0 bit 12 r/w ipe 0 bit 11 r/w reserved 0 bit 10 r/w reserved 0 bit 9 r/w reserved 0 bit 8 r/w inclic1 0 bit 7 r/w reserved 0 bit 6 r/w reserved 0 bit 5 r/w reserved 0 bit 4 r/w inclipl 0 bit 3 r/w reserved 0 bit 2 r/w reserved 0 bit 1 r/w reserved 0 bit 0 r/w iop 0 reserved the reserved bits must be set to a logic zero. ipe the incoming parity interrupt enable bit (ipe) is an active high interrupt enable. when ipe is set to a logic one, the occurrence of a parity error on the incoming bus will cause an interrupt to be asserted on the intb output. when ipe is set to a logic zero, incoming parity errors will not cause and interrupt. inclipl the inclipl bit controls whether the ipl input signal participates in the incoming parity calculations. when inclipl is set to a logic one, the parity signal includes the ipl input. when inclipl is set to a logic zero, parity is calculated without regard to the state of ipl. these bits only take effect when in telecombus mode. inclic1 the inclic1 bit controls whether the ic1fp input signal participates in the incoming parity calculations. when inclic1 is set to a logic one, the parity signal includes the ic1fp input. when inclic1 is set to a logic zero, parity is calculated without regard to the state of ic1fp. these bits only take effect when in telecombus mode.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 99 document id: pmc-2010883, issue 2 iop the incoming odd parity bit (iop) control the expected parity on the incoming bus. when iop is set to a logic one, the expected parity on the idp input is odd. when iop is set to a logic zero, the parity is even. in sbi bus mode, the parity calculation encompasses the idata[7:0], ipl and iv5 signals. in telecombus mode, the parity calculation encompasses the idata[7:0] and optionally ipl and ic1fp as determined by the inclipl and inclic1 bits.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 100 document id: pmc-2010883, issue 2 register 021h: ista incoming parity status bit type function default bit 15 r reserved x bit 14 r reserved x bit 13 r reserved x bit 12 r ipi x bit 0-11 unused 0 reserved the reserved bits should be ignored when this register is read. ipi the incoming parity error indication bit (ipi) is set high when a parity error has occurred on the incoming bus. this bit is cleared when this register is read.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 101 document id: pmc-2010883, issue 2 register 022h: ista telecombus configuration bit type function default bit 15 r/w ilock0 0 bit 0-14 unused 0 ilock0 the ilock0 bit controls the position of the j1 byte in the incoming telecombus. when ilock0 is a logic one, the j1 byte is expected to be locked to an offset of 0 (the byte following h3). when ilock0 is a logic zero, the j1 byte is expected to be locked to an offset of 522 (the byte following c1). this bit is used to determine where to sample the ic1fp[4:1] input in order to find the byte following j1 which will indicate multiframe alignment. this bit only has an effect when in telecombus mode (telecom_bus = ?b1 in the sbslite master configuration register).
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 102 document id: pmc-2010883, issue 2 register 028h: imsu configuration bit type function default bit 5-15 unused 0 bit 4 r/w auto_update 0 bit 3 r/w swap_pendinge 0 bit 2 r/w updatee 0 bit 1 r swap_pendingv 0 bit 0 r updatev 0 auto_update the auto_update bit selects when an off-line page update is performed. when auto_update is a logic one, the on-line page is automatically copied into the off-line page whenever there is a change to the connection memory page. when auto_update is a logic zero, the off-line page is not updated when there is a change to the connection memory page. a page update may still be performed by writing to the interrupt status and memory page update register. swap_pendinge a logic one on the swap_pendinge bit enables the generation of an interrupt on a change of state of swap_pendingv. updatee a logic one on the updatee bit enables the generation of an interrupt on a change of state from high to low of updatev. swap_pendingv the swap_pendingv bit contains the current state of the page swap circuitry. this bit is a logic one when a switch to the connection memory page (cmp) has been recognized but the page swap has not yet happened. this bit is a logic zero when there is not a page swap pending. updatev the updatev bit contains the current state of the time switch ram off-line page update circuitry. this bit is a logic one when the on-line page is being copied to the offline page. this bit is a logic zero when the on-line page is not being copied.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 103 document id: pmc-2010883, issue 2 register 029h: imsu interrupt status and memory page update register bit type function default bit 2-14 unused 0 bit 1 r swap_pendingi x bit 0 r updatei x writing to this register initiates an update of the off-line page in the time switch ram. the contents of the on-line page are written to the off-line page. during this update, the time switch ram may not be accessed through the indirect registers. swap_pendingi the page swap pending interrupt status bit, swap_pendingi, reports and acknowledges a change of state of the swap_pendingv bit of the msu configuration register. this bit is cleared when this register is read. when enabled by the swap_pendinge bit, the int output reflects the state of this bit. updatei the off-line page update interrupt status bit, updatei, reports and acknowledges a change of state from high to low of the updatev bit of the msu configuration register. this bit is cleared when this register is read. when enabled by the updatee bit, the int output reflects the state of this bit.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 104 document id: pmc-2010883, issue 2 register 02ah: imsu indirect time switch address bit type function default bit 15 r/w rwb 0 bit 14 unused 0 bit 13 r/w out_byte[13] 0 bit 12 r/w out_byte[12] 0 bit 11 r/w out_byte[11] 0 bit 10 r/w out_byte[10] 0 bit 9 r/w out_byte[9] 0 bit 8 r/w out_byte[8] 0 bit 7 r/w out_byte[7] 0 bit 6 r/w out_byte[6] 0 bit 5 r/w out_byte[5] 0 bit 4 r/w out_byte[4] 0 bit 3 r/w out_byte[3] 0 bit 2 r/w out_byte[2] 0 bit 1 r/w out_byte[1] 0 bit 0 r/w out_byte[0] 0 this register provides the address and the read/write control for the time switch configuration ram. writing to this register triggers a ram access. note that when an indirect write access is to be performed, the indirect time switch data register must first be setup before writing to this register. there must be a minimum of 4 sysclk cycles between consecutive ram write accesses. for a ram read access, it will take a maximum of 8 sysclk cycles for the indirect time switch data register to contain valid data. rwb the indirect access control bit (rwb) selects between a write or read access to the time switch configuration ram. writing a logic zero to rwb triggers and indirect write operation. data to be written is taken from the indirect time switch data register. writing a logic one to rwb triggers an indirect read operation. the read data can be found in the indirect time switch data register. out_byte[13:0] the out_byte[13:0] bits indicate the ram address to be accessed. each address in the ram corresponds to a location in the output data bus. the contents stored in each ram address points to the byte from the input data bus which is to be output. in ds0 mode, legal values are 000h to 25f7h (0 to 9719). in column mode, legal values are 000h to 437h (0 to 1079). the byte numbers of the output frame are shown in the following table.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 105 document id: pmc-2010883, issue 2 row 1 0 1 2 3 ? 1077 1078 1079 2 1080 1081 1082 1083 ? 2157 2158 2159 3 4 5 6 7 8 9 8640 8641 8642 8643 ? 9717 9718 9719
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 106 document id: pmc-2010883, issue 2 register 02bh: imsu indirect time switch data bit type function default bit 15 r valid 0 bit 14 r/w reserved 0 bit 13 r/w in_byte[13] 0 bit 12 r/w in_byte [12] 0 bit 11 r/w in_byte [11] 0 bit 10 r/w in_byte [10] 0 bit 9 r/w in_byte [9] 0 bit 8 r/w in_byte [8] 0 bit 7 r/w in_byte [7] 0 bit 6 r/w in_byte [6] 0 bit 5 r/w in_byte [5] 0 bit 4 r/w in_byte [4] 0 bit 3 r/w in_byte [3] 0 bit 2 r/w in_byte [2] 0 bit 1 r/w in_byte [1] 0 bit 0 r/w in_byte [0] 0 this register contains data read from the time switch ram after an indirect read operation or data to be inserted into the time switch ram during an indirect write operation. the value held in the ram indicates which byte of the input data bus is to be switched to the output. va l i d the valid bit reports the presence of valid data from an indirect read. valid is set to logic one when indirect read access returns data from the off-line ram and remains asserted until the next time indirect time switch data register is read. reserved the reserved bit should not be modified. in_byte[13:0] the in_byte[13:0] bits indicate which byte in the input frame is to be switched to the output. in ds0 mode, legal values are 000h to 25f7h (0 to 9719). in column mode, legal values are 000h to 437h (0 to 1079).
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 107 document id: pmc-2010883, issue 2 register 030h: icasm cas enable indirect access address register bit type function default bit 10-15 r unused 0 bit 9 r/w sbi[2] 0 bit 8 r/w sbi[1] 0 bit 7 r/w sbi[0] 0 bit 6 r/w spe[1] 0 bit 5 r/w spe[0] 0 bit 4 r/w trib[4] 0 bit 3 r/w trib[3] 0 bit 2 r/w trib[2] 0 bit 1 r/w trib[1] 0 bit 0 r/w trib[0] 0 trib[4:0], spe[1:0] and sbi[2:0] the trib[4:0], spe[1:0] and sbi[2:0] fields are used to fully specify which sbi336 cas enable register the write or read operation will apply. trib[4:0] specifies the tributary number within the sbi336 spe as specified by the spe[1:0] and sbi[2:0] fields. legal values for trib[4:0] are b?00001? through b?11100?. legal values for spe[1:0] are b?01? through b?11?. legal values for sbi[2:0] are b?001? through b?100?.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 108 document id: pmc-2010883, issue 2 register 031h: icasm cas enable indirect access control register bit type function default bit 15-8 r unused 0 bit 7 r busy 0 bit 6 r hst_addr_err 0 bit 5 r unused 0 bit 4 r unused 0 bit 3 r unused 0 bit 2 r unused 0 bit 1 r/w rwb 0 bit 0 r unused 0 rwb the indirect access control bit (rwb) selects between a configure (write) or interrogate (read) access to the cas enable register. writing a ?0? to rwb triggers an indirect write operation. data to be written is taken from the cas enable indirect access data register. writing a ?1? to rwb triggers an indirect read operation. the data read can be found in the cas enable indirect access data register. hst_addr_err when set following a host read this bit indicates that an illegal host access was attempted. an illegal host access occurs when an attempt is made to access an out of range tributary. out of range tributaries accesses occur when sbi[2:0] is not in the range 1-4, spe[1:0] is not in the range 1-3 and trib[4:0] is not in the range 1-28 for t1s, not in the range 1-21 for e1s and not equal to 1 for the remaining tributary types. this bit is cleared when this register is read. busy the indirect access status bit (busy) reports the progress of an indirect access. busy is set high when a write to the cas enable indirect access control register triggers an indirect access and will stay high until the access is complete. this register should be polled to determine when data from an indirect read operation is available in the cas enable indirect access data register or to determine when a new indirect write operation may commence.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 109 document id: pmc-2010883, issue 2 register 032h: icasm cas enable indirect access data register bit type function default bit 1-15 r unused 0 bit 0 r/w cas_en 0 cas_en the cas_en bit is used to enable the insertion of cas into the proper location in the associated tributary. when cas_en is a logic one and the associated tributary is a t1, the cas bits and pp bits are inserted into the ppssssfr byte. when cas_en is a logic one and the associated tributary is an e1, the cas bits are inserted into ts#16 and proper data is placed in the pp byte. when cas_en is a logic zero, both the cas and pp bits are not inserted. when cas insertion is enabled, the latency of the cas bits through the sbslite is two multiframes. for t1 tributaries, this is 48 frames or 6ms. for e1 tributaries, this is 32 frames or 4 ms.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 110 document id: pmc-2010883, issue 2 register 038h: istt tributary translator control ram indirect access address register bit type function default bit 10-15 r unused 0 bit 9 r/w sbi[2] 0 bit 8 r/w sbi[1] 0 bit 7 r/w sbi[0] 0 bit 6 r/w spe[1] 0 bit 5 r/w spe[0] 0 bit 4 r/w trib[4] 0 bit 3 r/w trib[3] 0 bit 2 r/w trib[2] 0 bit 1 r/w trib[1] 0 bit 0 r/w trib[0] 0 trib[4:0], spe[1:0] and sbi[2:0] the trib[4:0], spe[1:0] and sbi[2:0] fields are used to fully specify which sbi336 tributary translator control register the write or read operation will apply. trib[4:0] specifies the tributary number within the sbi336 spe as specified by the spe[1:0] and sbi[2:0] fields. legal values for trib[4:0] are b?00001? through b?11100?. legal values for spe[1:0] are b?01? through b?11?. legal values for sbi[2:0] are b?o01? through b?100?.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 111 document id: pmc-2010883, issue 2 register 039h: istt tributary translator control ram indirect access control register bit type function default bit 15-8 r unused 0 bit 7 r busy 0 bit 6 r hst_addr_err 0 bit 5 r unused 0 bit 4 r unused 0 bit 3 r unused 0 bit 2 r unused 0 bit 1 r/w rwb 0 bit 0 r unused 0 rwb the indirect access control bit (rwb) selects between a configure (write) or interrogate (read) access to the tributary translator control ram. writing a ?0? to rwb triggers an indirect write operation. data to be written is taken from the tributary translator control ram indirect access data register. writing a ?1? to rwb triggers an indirect read operation. the data read can be found in the tributary translator control ram indirect access data. hst_addr_err when set following a host read this bit indicates that an illegal host access was attempted. an illegal host access occurs when an attempt is made to access an out of range tributary. out of range tributaries accesses occur when sbi[2:0] is not in the range 1-4, spe[1:0] is not in the range 1-3 and trib[4:0] is not in the range 1-28 for t1s, not in the range 1-21 for e1s and not equal to 1 for the remaining tributary types. this bit is cleared when this register is read. busy the indirect access status bit (busy) reports the progress of an indirect access. busy is set high when a write to the tributary translator control ram indirect access control register triggers an indirect access and will stay high until the access is complete. this register should be polled to determine when data from an indirect read operation is available in the indirect tributary translator control ram indirect access data register or to determine when a new indirect write operation may commence.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 112 document id: pmc-2010883, issue 2 register 03ah: istt tributary translator control ram indirect access data register bit type function default bit 2-15 r unused 0 bit 1 r/w tvt 0 bit 0 r/w just_req_en 0 just_req_en the just_req_en bit is used to enable t1, e1, ds3, e3 and fractional rate justification request state machines to convert just_req to v5, v5+ and v5- characters to be carried over the serial sbi336s link. when this bit is set to 1 the justification request state machines will convert just_req signals to v5 characters. when this bit is set to 0 the state machines will not generate additional v5 characters for the specified link and will only pass existing v5 characters through as nominal rate v5 characters. this bit should be set to 1 when this device is being used in sbi mode and is connected to physical layer device which is clock master of the transmit tributary. this bit should not be set if the tvt bit is set. this bit has no effect in telecombus mode. tvt the tvt bit configures a t1 or e1 tributary as a transparent virtual tributary. when tvt is set to 1 the t1 or e1 tributary is configured as a tvt and the erdi and rei bits in the v5 byte are transmitted across the serial link in one of the v5 characters. when tvt is set to 0 the t1 or e1 tributary is configured as a standard t1 or e1 link. this bit should not be set if the just_req_en bit is set. this bit has no effect in telecombus mode or if the spe is configured to something other that t1 or e1 data.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 113 document id: pmc-2010883, issue 2 register 040h: ostt tributary translator control ram indirect access address register bit type function default bit 10-15 r unused 0 bit 9 r/w sbi[2] 0 bit 8 r/w sbi[1] 0 bit 7 r/w sbi[0] 0 bit 6 r/w spe[1] 0 bit 5 r/w spe[0] 0 bit 4 r/w trib[4] 0 bit 3 r/w trib[3] 0 bit 2 r/w trib[2] 0 bit 1 r/w trib[1] 0 bit 0 r/w trib[0] 0 trib[4:0], spe[1:0] and sbi[2:0] the trib[4:0], spe[1:0] and sbi[2:0] fields are used to fully specify which sbi336 tributary translator control register the write or read operation will apply. trib[4:0] specifies the tributary number within the sbi336 spe as specified by the spe[1:0] and sbi[2:0] fields. legal values for trib[4:0] are b?00001? through b?11100?. legal values for spe[1:0] are b?01? through b?11?. legal values for sbi[2:0] are b?001? through b?100?.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 114 document id: pmc-2010883, issue 2 register 041h: ostt tributary translator control ram indirect access control register bit type function default bit 15-8 r unused 0 bit 7 r busy 0 bit 6 r hst_addr_err 0 bit 5 r unused 0 bit 4 r unused 0 bit 3 r unused 0 bit 2 r unused 0 bit 1 r/w rwb 0 bit 0 r unused 0 rwb the indirect access control bit (rwb) selects between a configure (write) or interrogate (read) access to the tributary translator control ram. writing a ?0? to rwb triggers an indirect write operation. data to be written is taken from the tributary translator control ram indirect access data register. writing a ?1? to rwb triggers an indirect read operation. the data read can be found in the tributary translator control ram indirect access data. hst_addr_err when set following a host read this bit indicates that an illegal host access was attempted. an illegal host access occurs when an attempt is made to access an out of range tributary. out of range tributaries accesses occur when sbi[2:0] is not in the range 1-4, spe[1:0] is not in the range 1-3 and trib[4:0] is not in the range 1-28 for t1s, not in the range 1-21 for e1s and not equal to 1 for the remaining tributary types. this bit is cleared when this register is read. busy the indirect access status bit (busy) reports the progress of an indirect access. busy is set high when a write to the tributary translator control ram indirect access control register triggers an indirect access and will stay high until the access is complete. this register should be polled to determine when data from an indirect read operation is available in the indirect tributary translator control ram indirect access data register or to determine when a new indirect write operation may commence.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 115 document id: pmc-2010883, issue 2 register 042h: ostt tributary translator control ram indirect access data register bit type function default bit 2-15 r unused 0 bit 1 r/w tvt 0 bit 0 r/w just_req_en 0 just_req_en the just_req_en bit is used to enable t1, e1, ds3, e3 and fractional rate justification request state machines to convert v5, v5+ and v5- characters to just_reqs. when this bit is set to 1 the justification request state machines will convert v5 characters to the just_req signal. when this bit is set to 0 the state machines will not generate just_req. this bit should be set to 1 when this device is being used in sbi mode and is connected to link layer device which is clock slave to the transmit tributary. this bit should not be set if the tvt bit is set. this bit has no effect in telecombus mode. tvt the tvt bit configures a t1 or e1 tributary as a transparent virtual tributary. when tvt is set to 1 the t1 or e1 tributary is configured as a tvt. being a tvt, the erdi and rei bits are received from the serial link in one of the v5 characters and are output on odata during the v5 byte. when tvt is set to 0 the t1 or e1 tributary is configured as a standard t1 or e1 link. this bit should not be set if the just_req_en bit is set. this bit has no effect in telecombus mode or if the spe is configured to something other that t1 or e1 data.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 116 document id: pmc-2010883, issue 2 register 048h: omsu configuration bit type function default bit 5-15 unused 0 bit 4 r/w auto_update 0 bit 3 r/w swap_pendinge 0 bit 2 r/w updatee 0 bit 1 r swap_pendingv 0 bit 0 r updatev 0 auto_update the auto_update bit selects when an off-line page update is performed. when auto_update is a logic one, the on-line page is automatically copied into the off-line page whenever there is a change to the connection memory page. when auto_update is a logic zero, the off-line page is not updated when there is a change to the connection memory page. a page update may still be performed by writing to the interrupt status and memory page update register. swap_pendinge a logic one on the swap_pendinge bit enables the generation of an interrupt on a change of state of swap_pendingv. updatee a logic one on the updatee bit enables the generation of an interrupt on a change of state from high to low of updatev. swap_pendingv the swap_pendingv bit contains the current state of the page swap circuitry. this bit is a logic one when a switch to the connection memory page (cmp) has been recognized but the page swap has not yet happened. this bit is a logic zero when there is not a page swap pending. updatev the updatev bit contains the current state of the time switch ram off-line page update circuitry. this bit is a logic one when the on-line page is being copied to the offline page. this bit is a logic zero when the on-line page is not being copied.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 117 document id: pmc-2010883, issue 2 register 049h: omsu interrupt status and memory page update register bit type function default bit 2-14 unused 0 bit 1 r swap_pendingi x bit 0 r updatei x writing to this register initiates an update of the off-line page in the time switch ram. the contents of the on-line page are written to the off-line page. during this update, the time switch ram may not be accessed through the indirect registers. swap_pendingi the page swap pending interrupt status bit, swap_pendingi, reports and acknowledges a change of state of the swap_pendingv bit of the msu configuration register. this bit is cleared when this register is read. when enabled by the swap_pendinge bit, the int output reflects the state of this bit. updatei the off-line page update interrupt status bit, updatei, reports and acknowledges a change of state from high to low of the updatev bit of the msu configuration register. this bit is cleared when this register is read. when enabled by the updatee bit, the int output reflects the state of this bit.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 118 document id: pmc-2010883, issue 2 register 04ah: omsu indirect time switch address bit type function default bit 15 r/w rwb 0 bit 14 unused 0 bit 13 r/w out_byte[13] 0 bit 12 r/w out_byte[12] 0 bit 11 r/w out_byte[11] 0 bit 10 r/w out_byte[10] 0 bit 9 r/w out_byte[9] 0 bit 8 r/w out_byte[8] 0 bit 7 r/w out_byte[7] 0 bit 6 r/w out_byte[6] 0 bit 5 r/w out_byte[5] 0 bit 4 r/w out_byte[4] 0 bit 3 r/w out_byte[3] 0 bit 2 r/w out_byte[2] 0 bit 1 r/w out_byte[1] 0 bit 0 r/w out_byte[0] 0 this register provides the address and the read/write control for the time switch configuration ram. writing to this register triggers a ram access. note that when an indirect write access is to be performed, the indirect time switch data register must first be setup before writing to this register. there must be a minimum of 4 sysclk cycles between consecutive ram accesses. for a ram read access, it will take a maximum of 8 sysclk cycles for the indirect time switch data register to contain valid data. rwb the indirect access control bit (rwb) selects between a write or read access to the time switch configuration ram. writing a logic zero to rwb triggers and indirect write operation. data to be written is taken from the indirect time switch data register. writing a logic one to rwb triggers an indirect read operation. the read data can be found in the indirect time switch data register. out_byte[13:0] the out_byte[13:0] bits indicate the ram address to be accessed. each address in the ram corresponds to a location in the output data bus. the contents stored in each ram address points to the byte from the input data bus which is to be output. in ds0 mode, legal values are 000h to 25f7h (0 to 9719). in column mode, legal values are 000h to 437h (0 to 1079). the byte numbers of the output frame are shown in the following table.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 119 document id: pmc-2010883, issue 2 row 1 0 1 2 3 ? 1077 1078 1079 2 1080 1081 1082 1083 ? 2157 2158 2159 3 4 5 6 7 8 9 8640 8641 8642 8643 ? 9717 9718 9719
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 120 document id: pmc-2010883, issue 2 register 04bh: omsu indirect time switch data bit type function default bit 15 r valid 0 bit 14 r/w reserved 0 bit 13 r/w in_byte[13] 0 bit 12 r/w in_byte [12] 0 bit 11 r/w in_byte [11] 0 bit 10 r/w in_byte [10] 0 bit 9 r/w in_byte [9] 0 bit 8 r/w in_byte [8] 0 bit 7 r/w in_byte [7] 0 bit 6 r/w in_byte [6] 0 bit 5 r/w in_byte [5] 0 bit 4 r/w in_byte [4] 0 bit 3 r/w in_byte [3] 0 bit 2 r/w in_byte [2] 0 bit 1 r/w in_byte [1] 0 bit 0 r/w in_byte [0] 0 this register contains data read from the time switch ram after an indirect read operation or data to be inserted into the time switch ram during an indirect write operation. the value held in the ram indicates which byte of the input data bus is to be switched to the output. va l i d the valid bit reports the presence of valid data from an indirect read. valid is set to logic one when indirect read access returns data from the off-line ram and remains asserted until the next time indirect time switch data register is read. reserved the reserved bit should not be modified. in_byte[13:0] the in_byte[13:0] bits indicate which byte in the input frame is to be switched to the output. in ds0 mode, legal values are 000h to 25f7h (0 to 9719). in column mode, legal values are 000h to 437h (0 to 1079).
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 121 document id: pmc-2010883, issue 2 register 050h: ocasm cas enable indirect access address register bit type function default bit 10-15 r unused 0 bit 9 r/w sbi[2] 0 bit 8 r/w sbi[1] 0 bit 7 r/w sbi[0] 0 bit 6 r/w spe[1] 0 bit 5 r/w spe[0] 0 bit 4 r/w trib[4] 0 bit 3 r/w trib[3] 0 bit 2 r/w trib[2] 0 bit 1 r/w trib[1] 0 bit 0 r/w trib[0] 0 trib[4:0], spe[1:0] and sbi[2:0] the trib[4:0], spe[1:0] and sbi[2:0] fields are used to fully specify which sbi336 cas enable register the write or read operation will apply. trib[4:0] specifies the tributary number within the sbi336 spe as specified by the spe[1:0] and sbi[2:0] fields. legal values for trib[4:0] are b?00001? through b?11100?. legal values for spe[1:0] are b?01? through b?11?. legal values for sbi[2:0] are b?001? through b?100?.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 122 document id: pmc-2010883, issue 2 register 051h: ocasm cas enable indirect access control register bit type function default bit 15-8 r unused 0 bit 7 r busy 0 bit 6 r hst_addr_err 0 bit 5 r unused 0 bit 4 r unused 0 bit 3 r unused 0 bit 2 r unused 0 bit 1 r/w rwb 0 bit 0 r unused 0 rwb the indirect access control bit (rwb) selects between a configure (write) or interrogate (read) access to the cas enable register. writing a ?0? to rwb triggers an indirect write operation. data to be written is taken from the cas enable indirect access data register. writing a ?1? to rwb triggers an indirect read operation. the data read can be found in the cas enable indirect access data register. hst_addr_err when set following a host read this bit indicates that an illegal host access was attempted. an illegal host access occurs when an attempt is made to access an out of range tributary. out of range tributaries accesses occur when sbi[2:0] is not in the range 1-4, spe[1:0] is not in the range 1-3 and trib[4:0] is not in the range 1-28 for t1s, not in the range 1-21 for e1s and not equal to 1 for the remaining tributary types. this bit is cleared when this register is read. busy the indirect access status bit (busy) reports the progress of an indirect access. busy is set high when a write to the cas enable indirect access control register triggers an indirect access and will stay high until the access is complete. this register should be polled to determine when data from an indirect read operation is available in the cas enable indirect access data register or to determine when a new indirect write operation may commence.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 123 document id: pmc-2010883, issue 2 register 052h: ocasm cas enable indirect access data register bit type function default bit 1-15 r unused 0 bit 0 r/w cas_en 0 cas_en the cas_en bit is used to enable the insertion of cas into the proper location in the associated tributary. when cas_en is a logic one and the associated tributary is a t1, the cas bits and pp bits are inserted into the ppssssfr byte. when cas_en is a logic one and the associated tributary is an e1, the cas bits are inserted into ts#16 and proper data is placed in the pp byte. when cas_en is a logic zero, both the cas and pp bits are not inserted. when cas insertion is enabled, the latency of the cas bits through the sbslite is two multiframes. for t1 tributaries, this is 48 frames or 6ms. for e1 tributaries, this is 32 frames or 4 ms.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 124 document id: pmc-2010883, issue 2 register 060h: osta outgoing configuration and parity bit type function default bit 15 r/w reserved 0 bit 14 r/w olock0 0 bit 13 unused 0 bit 12 unused 0 bit 11 r/w reserved 0 bit 10 r/w reserved 0 bit 9 r/w reserved 0 bit 8 r/w incloc1fp 0 bit 7 r/w reserved 0 bit 6 r/w reserved 0 bit 5 r/w reserved 0 bit 4 r/w inclopl 0 bit 3 r/w reserved 0 bit 2 r/w reserved 0 bit 1 r/w reserved 0 bit 0 r/w oop 0 reserved the reserved bits must be set to a logic zero. olock0 the olock0 bit controls the position of the j1 byte in the outgoing telecombus. when olock0 is a logic one, the j1 byte is expected to be locked to an offset of 0 (the byte following h3). when olock0 is a logic zero, the j1 byte is expected to be locked to an offset of 522 (the byte following c1). this bit is used to determine where to pulse the oc1fp output when any part of sts1_oj1en[12:1] or sts1_ov1en[12:1] are set. this bit only has an effect when in telecombus mode (telecom_bus = ?b1 in the sbslite master configuration register). incloc1fp the incloc1fp bit controls whether the oc1fp output signal participates in the outgoing bus parity calculations. when incloc1fp is set to a logic one, the parity signal includes the oc1fp output. when incloc1fp is set to a logic zero, parity is calculated without regard to the state of oc1fp. these bits only take effect when in telecombus mode.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 125 document id: pmc-2010883, issue 2 inclopl the inclopl bit controls whether the opl output signal participates in the outgoing parity calculations. when inclopl is set to a logic one, the parity signal includes the opl output. when inclopl is set to a logic zero, parity is calculated without regard to the state of opl[x]. these bits only take effect when in telecombus mode. oop the outgoing odd parity bit (oop) controls the parity generated on the outgoing bus. when oop is set to a logic one, the parity on the odp output is odd. when oop is set to a logic zero, the parity is even. in sbi bus mode, the parity calculation encompasses the odata[7:0], opl and ov5 signals. in telecombus mode, the parity calculation encompasses the odata[7:0] and optionally opl and oc1fp as determined by the inclopl and incloc1fp bits.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 126 document id: pmc-2010883, issue 2 register 061h: osta outgoing j1 configuration bit type function default bit 12-15 unused 0 bit 11 r/w sts1_oj1en[12] 0 bit 10 r/w sts1_oj1en[11] 0 bit 9 r/w sts1_oj1en[10] 0 bit 8 r/w sts1_oj1en[9] 0 bit 7 r/w sts1_oj1en[8] 0 bit 6 r/w sts1_oj1en[7] 0 bit 5 r/w sts1_oj1en[6] 0 bit 4 r/w sts1_oj1en[5] 0 bit 3 r/w sts1_oj1en[4] 0 bit 2 r/w sts1_oj1en[3] 0 bit 1 r/w sts1_oj1en[2] 0 bit 0 r/w sts1_oj1en[1] 0 sts1_oj1en[12:1] the sts1_oj1en[12:1] bit controls the inclusion of the j1 byte identification on the oc1fp output for each of the 12 sts-1s. when sts1_oj1en[x] is a logic one, the oc1fp output will pulse high during the j1 byte position of the associated sts-1 along with the usual c1 byte position. the position of the j1 byte relative to the c1 position is determined by the olock0 bit. when sts1_oj1en[x] is a logic zero, the oc1fp will not pulse high during the j1 byte position of the associated sts-1. this bit only has an effect when in telecombus mode (telecom_bus = ?b1 in the sbslite master configuration register).
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 127 document id: pmc-2010883, issue 2 register 062h: osta outgoing v1 configuration bit type function default bit 12-15 unused 0 bit 11 r/w sts1_ov1en[12] 0 bit 10 r/w sts1_ov1en[11] 0 bit 9 r/w sts1_ov1en[10] 0 bit 8 r/w sts1_ov1en[9] 0 bit 7 r/w sts1_ov1en[8] 0 bit 6 r/w sts1_ov1en[7] 0 bit 5 r/w sts1_ov1en[6] 0 bit 4 r/w sts1_ov1en[5] 0 bit 3 r/w sts1_ov1en[4] 0 bit 2 r/w sts1_ov1en[3] 0 bit 1 r/w sts1_ov1en[2] 0 bit 0 r/w sts1_ov1en[1] 0 sts1_ov1en[12:1] the sts1_ov1en[12:1] bit controls the inclusion of the byte following j1 identification on the oc1fp output for each of the 12 sts-1s. when sts1_ov1en[x] is a logic one, the oc1fp output will pulse high during the byte following the j1 position of the associated sts-1 along with the usual c1 byte position. the position of the j1 byte relative to the c1 position is determined by the olock0 bit. when sts1_ov1en is a logic zero, the oc1fp will not pulse high during the byte following the j1 position of the associated sts-1. this bit only has an effect when in telecombus mode (telecom_bus = ?b1 in the sbslite master configuration register).
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 128 document id: pmc-2010883, issue 2 register 063h: osta h1-h2 pointer value bit type function default bit 15 r/w h1[7] 0 bit 14 r/w h1[6] 0 bit 13 r/w h1[5] 0 bit 12 r/w h1[4] 0 bit 11 r/w h1[3] 0 bit 10 r/w h1[2] 0 bit 9 r/w h1[1] 0 bit 8 r/w h1[0] 0 bit 7 r/w h2[7] 0 bit 6 r/w h2[6] 0 bit 5 r/w h2[5] 0 bit 4 r/w h2[4] 0 bit 3 r/w h2[3] 0 bit 2 r/w h2[2] 0 bit 1 r/w h2[1] 0 bit 0 r/w h2[0] 0 h1[7:0] the h1[7:0] bits contain the value to be output during the h1 position of the transport overhead of the outgoing telecombus when the sts1_ptr_sel[x] bit is a logic zero and the oh1h2en bit is set high. these bits have no effect when oh1h2en is low or when in sbi mode (telecom_bus = ?b0 in the master configuration register). h2[7:0] the h2[7:0] bits contain the value to be output during the h2 position of the transport overhead of the outgoing telecombus when the sts1_ptr_sel[x] bit is a logic zero and the oh1h2en bit is set high. these bits have no effect when oh1h2en is low or when in sbi mode (telecom_bus = ?b0 in the master configuration register).
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 129 document id: pmc-2010883, issue 2 register 064h: osta alternate h1-h2 pointer value bit type function default bit 15 r/w h1_alt[7] 0 bit 14 r/w h1_alt[6] 0 bit 13 r/w h1_alt[5] 0 bit 12 r/w h1_ alt[4] 0 bit 11 r/w h1_ alt[3] 0 bit 10 r/w h1_ alt[2] 0 bit 9 r/w h1_ alt[1] 0 bit 8 r/w h1_ alt[0] 0 bit 7 r/w h2_ alt[7] 0 bit 6 r/w h2_ alt[6] 0 bit 5 r/w h2_ alt[5] 0 bit 4 r/w h2_ alt[4] 0 bit 3 r/w h2_ alt[3] 0 bit 2 r/w h2_ alt[2] 0 bit 1 r/w h2_ alt[1] 0 bit 0 r/w h2_ alt[0] 0 h1_alt[7:0] the h1_alt[7:0] bits contain the value to be output during the h1 position of the transport overhead of the outgoing telecombus when the sts1_ptr_sel[x] bit is a logic one and the oh1h2en bit is set high. these bits have no effect when oh1h2en is low or when in sbi mode (telecom_bus = ?b0 in the master configuration register). h2_alt[7:0] the h2_alt[7:0] bits contain the value to be output during the h2 position of the transport overhead of the outgoing telecombus when the sts1_ptr_sel[x] bit is a logic one and the oh1h2en bit is set high. these bits have no effect when oh1h2en is low or when in sbi mode (telecom_bus = ?b0 in the master configuration register).
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 130 document id: pmc-2010883, issue 2 register 065h: osta h1-h2 pointer selection bit type function default bit 15 r/w oh1h2en 0 bit 14 unused 0 bit 13 unused 0 bit 12 unused 0 bit 11 r/w sts1_ptr_sel[12] 0 bit 10 r/w sts1_ptr_sel[11] 0 bit 9 r/w sts1_ptr_sel[10] 0 bit 8 r/w sts1_ptr_sel[9] 0 bit 7 r/w sts1_ptr_sel[8] 0 bit 6 r/w sts1_ptr_sel[7] 0 bit 5 r/w sts1_ptr_sel[6] 0 bit 4 r/w sts1_ptr_sel[5] 0 bit 3 r/w sts1_ptr_sel[4] 0 bit 2 r/w sts1_ptr_sel[3] 0 bit 1 r/w sts1_ptr_sel[2] 0 bit 0 r/w sts1_ptr_sel[1] 0 oh1h2en the oh1h2en bit enables the insertion of the h1 and h2 bytes in the transport overhead on the outgoing telecombus. when oh1h2en is a logic one, the values in the internal registers is inserted into the h1 and h2 bytes of the outgoing telecombus according to the sts1_ptr_sel[12:1] bits. when oh1h2en is a logic zero, the values from the internal registers is not inserted into the h1 and h2 bytes. this bit has no effect when in sbi mode (telecom_bus = ?b0 in the master configuration register). sts1_ptr_sel[12:1] the sts1_ptr_sel[12:1] bits select which of the two h1-h2 pointer registers is used for each of the 12 sts-1?s output on the outgoing telecombus when the oh1h2en bit is set. when sts1_ptr_sel[x] is a logic zero, the osta transmit h1-h2 pointer value register is used for the associated sts-1 on the outgoing bus. when sts1_ptr_sel[x] is a logic one, the osta transmit alternate h1-h2 pointer value register is used for the associated sts-1 on the outgoing bus. these bits have no effect when oh1h2en is low or when in sbi mode (telecom_bus = ?b0 in the master configuration register).
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 131 document id: pmc-2010883, issue 2 register 070h: wpp indirect address bit type function default bit 15 r busy 0 bit 14 r/w rdwrb 0 bit 13 unused x bit 12 unused x bit 11 unused x bit 10 unused x bit 9 r/w iaddr[3] 0 bit 8 r/w iaddr[2] 0 bit 7 r/w iaddr[1] 0 bit 6 r/w iaddr[0] 0 bit 5 unused x bit 4 unused x bit 3 r/w path[3] 0 bit 2 r/w path[2] 0 bit 1 r/w path[1] 0 bit 0 r/w path[0] 0 this register provides selection of configuration pages and of the timeslots to be accessed in the wpp block. writing to this register triggers an indirect register access. path[3:0] the path[3:0] bits select which time-multiplexed division is accessed by the current indirect transfer. path[3:0] time division # 0000 invalid sts-1 path 0001-1100 sts-1 path #1 to sts-1 path #12 1101-1111 invalid sts-1 path iaddr[3:0] the internal ram page bits select which page of the internal ram is access by the current indirect transfer. six pages are defined for the monitor (iaddr[3] = ?0?) : the configuration page, the prbs[22:7] page, the prbs[6:0] page, the b1/e1 value page, the monitor error count page and the received b1/e1 byte.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 132 document id: pmc-2010883, issue 2 iaddr[3:0] ram page 0000 sts-1 path configuration page 0001 prbs[22:7] page 0010 prbs[6:0] page 0011 reserved 0100 monitor error count page 0101 reserved four pages are defined for the generator (iaddr [3] = ?1?) : the configuration page, the prbs[22:7] page, the prbs[6:0] page and the b1/e1 value. iaddr[3:0] ram page 1000 sts-1 path configuration page 1001 prbs[22:7] page 1010 prbs[6:0] page 1011 reserved rdwrb the active high read and active low write (rdwrb) bit selects if the current access to the internal ram is an indirect read or an indirect write. writing to the indirect address register initiates an access to the internal ram. when rdwrb is set to logic one, an indirect read access to the ram is initiated. the data from the addressed location in the internal ram will be transfer to the indirect data register. when rdwrb is set to logic zero, an indirect write access to the ram is initiated. the data from the indirect data register will be transfer to the addressed location in the internal ram. busy the active high ram busy (busy) bit reports if a previously initiated indirect access to the internal ram has been completed. busy is set to logic one upon writing to the indirect address register. busy is set to logic zero, upon completion of the ram access. this register should be polled to determine when new data is available in the indirect data register.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 133 document id: pmc-2010883, issue 2 register 071h: wpp indirect data bit type function default bit 15 r/w data[15] 0 bit 14 r/w data[14] 0 bit 13 r/w data[13] 0 bit 12 r/w data[12] 0 bit 11 r/w data[11] 0 bit 10 r/w data[10] 0 bit 9 r/w data[9] 0 bit 8 r/w data[8] 0 bit 7 r/w data[7] 0 bit 6 r/w data[6] 0 bit 5 r/w data[5] 0 bit 4 r/w data[4] 0 bit 3 r/w data[3] 0 bit 2 r/w data[2] 0 bit 1 r/w data[1] 0 bit 0 r/w data[0] 0 this register contains the data read from the internal ram after an indirect read operation or the data to be inserted into the internal ram in an indirect write operation. data[15:0] the indirect access data (data[15:0]) bits hold the data transfer to or from the internal ram during indirect access. when rdwrb is set to logic one (indirect read), the data from the addressed location in the internal ram will be transfer to data[15:0]. busy should be polled to determine when the new data is available in data[15:0]. when rdwrb is set to logic zero (indirect write), the data from data[15:0] will be transferred to the addressed location in the internal ram. the indirect data register must contain valid data before the indirect write is initiated by writing to the indirect address register. data[15:0] has a different meaning depending on which page of the internal ram is being accessed.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 134 document id: pmc-2010883, issue 2 register 071h (iaddr = 0h): wpp monitor sts-1 path configuration bit type function default bit 15 unused x bit 14 unused x bit 13 unused x bit 12 unused x bit 11 r/w reserved x bit 10 r/w reserved x bit 9 unused x bit 8 unused x bit 7 unused x bit 6 r/w seq_prbsb 0 bit 5 r/w reserved 0 bit 4 unused x bit 3 w resync 0 bit 2 r/w inv_prbs 0 bit 1 r/w reserved 0 bit 0 r/w mon_ena 0 this register contains the definition of the wpp indirect data register (register 071h) when accessing indirect address 0h (iaddr[3:0] is ?0h? in register 070h). for sts-nc rates, only the first sts-1 has to be configured mon_ena monitor enable register bit, enables the prbs monitor for the sts-1 path specified in the path[3:0] of register 050h (tpp indirect address). if mon_ena is set to ?1?, a prbs sequence is generated and compare to the incoming one inserted in the payload of the sonet/sdh frame. if mon_ena is low, the data at the input of the monitor is ignored. inv_prbs this sets the monitor to invert the prbs before comparing it to the internally generated payload. when set high, the prbs bytes will be inverted, else they will be compared unmodified. resync this sets the monitor to re-initialize the prbs sequence. when set high the monitor?s state machine will be forced in the out of sync state and automatically try to resynchronize to the incoming stream.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 135 document id: pmc-2010883, issue 2 seq_prbsb this bit enables the monitoring of a prbs or sequential pattern inserted in the payload. when low the payload contains prbs bytes, and when high, a sequential pattern is monitored. reserved the reserved bits must be set low for correct operation of the sbslite.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 136 document id: pmc-2010883, issue 2 register 071h (iaddr = 1h): wpp monitor prbs[22:7] accumulator bit type function default bit 15 r/w prbs[22] 0 bit 14 r/w prbs[21] 0 bit 13 r/w prbs[20] 0 bit 12 r/w prbs[19] 0 bit 11 r/w prbs[18] 0 bit 10 r/w prbs[17] 0 bit 9 r/w prbs[16] 0 bit 8 r/w prbs[15] 0 bit 7 r/w prbs[14] 0 bit 6 r/w prbs[13] 0 bit 5 r/w prbs[12] 0 bit 4 r/w prbs[11] 0 bit 3 r/w prbs[10] 0 bit 2 r/w prbs[9] 0 bit 1 r/w prbs[8] 0 bit 0 r/w prbs[7] 0 this register contains the definition of the wpp indirect data register (register 071h) when accessing indirect address 1h (iaddr[3:0] is ?1h? in register 070h). for sts-nc rates, only the first sts-1 has to be configured. prbs[22:7] the prbs[22:7] register are the 16 msbs of the lfsr state of the sts-1 path specified in the indirect addressing register. it is possible to write in this register to change the initial state of the register.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 137 document id: pmc-2010883, issue 2 register 071h (iaddr = 2h): wpp monitor prbs[6:0] accumulator bit type function default bit 15 unused x bit 14 unused x bit 13 unused x bit 12 unused x bit 11 unused x bit 10 unused x bit 9 unused x bit 8 unused x bit 7 unused x bit 6 r/w prbs[6] 0 bit 5 r/w prbs[5] 0 bit 4 r/w prbs[4] 0 bit 3 r/w prbs[3] 0 bit 2 r/w prbs[2] 0 bit 1 r/w prbs[1] 0 bit 0 r/w prbs[0] 0 this register contains the definition of the wpp indirect data register (register 071h) when accessing indirect address 2h (iaddr[3:0] is ?2h? in register 070h). for sts-nc rates, only the first sts-1 has to be configured. prbs[7:0] the prbs[6:0] register are the 7 lsbs of the lfsr state of the sts-1 path specified in the indirect addressing register. it is possible to write in this register to change the initial state of the register.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 138 document id: pmc-2010883, issue 2 register 071h (iaddr = 4h): wpp monitor error count bit type function default bit 15 r err_cnt[15] x bit 14 r err_cnt[14] x bit 13 r err_cnt[13] x bit 12 r err_cnt[12] x bit 11 r err_cnt[11] x bit 10 r err_cnt[10] x bit 9 r err_cnt[9] x bit 8 r err_cnt[8] x bit 7 r err_cnt[7] x bit 6 r err_cnt[6] x bit 5 r err_cnt[5] x bit 4 r err_cnt[4] x bit 3 r err_cnt[3] x bit 2 r err_cnt[2] x bit 1 r err_cnt[1] x bit 0 r err_cnt[0] x this register contains the definition of the wpp indirect data register (register 071h) when accessing indirect address 4h (iaddr[3:0] is ?4h? in register 070h). err_cnt[15:0] the err_cnt[15:0] register contains the cumulative number of errors in the prbs bytes since the last error reporting event. errors are accumulated only when the monitor is in the synchronized state. each prbs byte will only contribute a single error, even if there are multiple errors within a single prbs byte. the transfer of the error counter to this holding register is triggered by an indirect write to this register or writing the sbslite master signal monitor #1, accumulation trigger register (014h). the error counter is cleared and restarted after its value is transferred to the err_cnt[15:0] holding register. no errors are missed during the transfer. the error counter will not wrap around after reaching ffffh, it will saturate at this value.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 139 document id: pmc-2010883, issue 2 register 071h (iaddr = 8h): wpp generator sts-1 path configuration bit type function default bit 15 unused x bit 14 unused x bit 13 r/w reserved 0 bit 12 r/w linkena 0 bit 11 unused x bit 10 unused x bit 9 r/w reserved 0 bit 8 r/w linkena 0 bit 7 r/w reserved 0 bit 6 r/w reserved 0 bit 5 r/w seq_prbsb 0 bit 4 r/w reserved 0 bit 3 w force_err 0 bit 2 unused bit 1 r/w inv_prbs 0 bit 0 r/w reserved 0 this register contains the definition of the wpp indirect data register (register 071h) when accessing indirect address 8h (iaddr[3:0] is ?8h? in register 070h). for sts-nc rates, only the first sts-1 has to be configured. inv_prbs sets the generator to invert the prbs before inserting it in the payload. when set high, the prbs bytes will be inverted, else they will be inserted unmodified. force_err the force error bit is used to force bit errors in the inserted pattern. when a logic one is written, the msb of the next byte will be inverted, inducing a single bit error. the register clears itself when the operation is complete. seq_prbsb this bit enables the insertion of a prbs sequence or a sequential pattern in the payload. when low, the payload is filled with prbs bytes, and when high, a sequential pattern is inserted.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 140 document id: pmc-2010883, issue 2 linkena these two bits specify if prbs is to be inserted in the path through the tw8e. if linkena is high patterns are generated in the sonet/sdh frame to the tw8e, else no pattern is generated and the unmodified sonet/sdh input frame is passed to the tw8e. reserved the reserved bits must be set low for correct operation of the sbslite.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 141 document id: pmc-2010883, issue 2 register 071h (iaddr = 9h): wpp generator prbs[22:7] accumulator bit type function default bit 15 r/w prbs[22] 0 bit 14 r/w prbs[21] 0 bit 13 r/w prbs[20] 0 bit 12 r/w prbs[19] 0 bit 11 r/w prbs[18] 0 bit 10 r/w prbs[17] 0 bit 9 r/w prbs[16] 0 bit 8 r/w prbs[15] 0 bit 7 r/w prbs[14] 0 bit 6 r/w prbs[13] 0 bit 5 r/w prbs[12] 0 bit 4 r/w prbs[11] 0 bit 3 r/w prbs[10] 0 bit 2 r/w prbs[9] 0 bit 1 r/w prbs[8] 0 bit 0 r/w prbs[7] 0 this register contains the definition of the wpp indirect data register (register 071h) when accessing indirect address 9h (iaddr[3:0] is ?9h? in register 070h). for sts-nc rates, only the first sts-1 has to be configured. prbs[22:7] the prbs[22:7] register are the 16 msbs of the lfsr state of the sts-1 path specified in the indirect addressing register. it is possible to write in this register to change the initial state of the register.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 142 document id: pmc-2010883, issue 2 register 071h (iaddr = ah): wpp generator prbs[6:0] accumulator bit type function default bit 15 unused x bit 14 unused x bit 13 unused x bit 12 unused x bit 11 unused x bit 10 unused x bit 9 unused x bit 8 unused x bit 7 unused x bit 6 r/w prbs[6] 0 bit 5 r/w prbs[5] 0 bit 4 r/w prbs[4] 0 bit 3 r/w prbs[3] 0 bit 2 r/w prbs[2] 0 bit 1 r/w prbs[1] 0 bit 0 r/w prbs[0] 0 this register contains the definition of the wpp indirect data register (register 071h) when accessing indirect address ah (iaddr[3:0] is ?ah? in register 070h). for sts-nc rates, only the first sts-1 has to be configured. prbs[6:0] the prbs[6:0] register are the 7 lsbs of the lfsr state of the sts-1 path specified in the indirect addressing register. it is possible to write in this register to change the initial state of the register.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 143 document id: pmc-2010883, issue 2 register 072h: wpp generator payload configuration bit type function default bit 15 r/w reserved 0 bit 14 r/w gen_sts12c 0 bit 13 unused x bit 12 unused x bit 11 unused x bit 10 r/w reserved 0 bit 9 r/w reserved 0 bit 8 r/w reserved 0 bit 7 unused x bit 6 unused x bit 5 unused x bit 4 unused x bit 3 r/w gen_sts3c[3] 0 bit 2 r/w gen_sts3c[2] 0 bit 1 r/w gen_sts3c[1] 0 bit 0 r/w gen_sts3c[0] 0 this register configures the payload type of the timeslots in the incoming bus for processing by the working prbs generator. gen_sts3c[0] the sts-3c/vc-4 payload configuration (gen_sts3c[0]) bit selects the payload configuration. when gen_sts3c[0] is set to logic one, the sts-1/vc-3 paths #1, #5 and #9 are part of a sts-3c/vc-4 payload. when gen_sts3c[0] is set to logic zero, the paths are sts-1/vc-3 payloads. the gen_sts12c register bit has precedence over the gen_sts3c[0] register bit. gen_sts3c[1] the sts-3c/vc-4 payload configuration (gen_sts3c[1]) bit selects the payload configuration. when gen_sts3c[1] is set to logic one, the sts-1/vc-3 paths #2, #6 and #10 are part of a sts-3c/vc-4 payload. when gen_sts3c[1] is set to logic zero, the paths are sts-1/vc-3 payloads. the gen_sts12c register bit has precedence over the gen_sts3c[1] register bit.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 144 document id: pmc-2010883, issue 2 gen_sts3c[2] the sts-3c/vc-4 payload configuration (gen_sts3c[2]) bit selects the payload configuration. when gen_sts3c[2] is set to logic one, the sts-1/vc-3 paths #3, #7 and #11 are part of a sts-3cvc-4 payload. when gen_sts3c[2] is set to logic zero, the paths are sts-1/vc-3 payloads. the gen_sts12c register bit has precedence over the gen_sts3c[2] register bit. gen_sts3c[4] the sts-3c/vc-4 payload configuration (gen_sts3c[3]) bit selects the payload configuration. when gen_sts3c[3] is set to logic one, the sts-1/vc-3 paths #4, #8 and #12 are part of a sts-3c/vc-4 payload. when gen_sts3c[3] is set to logic zero, the paths are sts-1/vc-3 payloads. the gen_sts12c register bit has precedence over the gen_sts3c[3] register bit. gen_sts12c the sts-12c/vc-4-4c payload configuration (gen_sts12c) bit selects the payload configuration. when gen_sts12c is set to logic one, the timeslots #1 to #12 are part of the same concatenated payload defined by gen_msslen. when gen_sts12c is set to logic zero, the sts-1/stm-0 paths are defined with the gen_sts3c[3:0] register bit. the gen_sts12c register bit has precedence over the gen_sts3c[3:0] register bit. reserved the reserved bits must be set low for correct operation of the sbslite.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 145 document id: pmc-2010883, issue 2 register 073h: wpp monitor payload configuration bit type function default bit 15 r/w reserved 0 bit 14 r/w mon_sts12c 0 bit 13 unused x bit 12 unused x bit 11 unused x bit 10 r/w reserved 0 bit 9 r/w reserved 0 bit 8 r/w reserved 0 bit 7 unused x bit 6 r/w reserved 0 bit 5 unused x bit 4 unused x bit 3 r/w mon_sts3c[3] 0 bit 2 r/w mon_sts3c[2] 0 bit 1 r/w mon_sts3c[1] 0 bit 0 r/w mon_sts3c[0] 0 this register configures the payload type of the timeslots in the receive working serial link for processing by the prbs monitor section. mon_sts3c[0] the sts-3c/vc-4 payload configuration (mon_sts3c[0]) bit selects the payload configuration. when mon_sts3c[0] is set to logic one, the sts-1/stm-0 paths #1, #5 and #9 are part of a sts-3c/vc-4 payload. when mon_sts3c[0] is set to logic zero, the paths are sts-1/vc-3 payloads. the mon_sts12c register bit has precedence over the mon_sts3c[0] register bit. mon_sts3c[1] the sts-3c/vc-4 payload configuration (mon_sts3c[1]) bit selects the payload configuration. when mon_sts3c[1] is set to logic one, the sts-1/stm-0 paths #2, #6 and #10 are part of a sts-3c/vc-4 payload. when mon_sts3c[1] is set to logic zero, the paths are sts-1/vc-3 payloads. the mon_sts12c register bit has precedence over the mon_sts3c[1] register bit.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 146 document id: pmc-2010883, issue 2 mon_sts3c[2] the sts-3c/vc-4 payload configuration (mon_sts3c[2]) bit selects the payload configuration. when mon_sts3c[2] is set to logic one, the sts-1/stm-0 paths #3, #7 and #11 are part of a mon_sts-3c/vc-4 payload. when mon_sts3c[2] is set to logic zero, the paths are sts-1 (vc-3) payloads. the mon_sts12c register bit has precedence over the mon_sts3c[2] register bit. mon_sts3c[4] the sts-3c/vc-4 payload configuration (mon_sts3c[3]) bit selects the payload configuration. when mon_sts3c[3] is set to logic one, the sts-1/stm-0 paths #4, #8 and #12 are part of a sts-3c/vc-4 payload. when mon_sts3c[3] is set to logic zero, the paths are sts-1/vc-3 payloads. the mon_sts12c register bit has precedence over the mon_sts3c[3] register bit. reserved the reserved bits must be set low for correct operation of the sbslite. mon_sts12c the sts-12c/vc-4-4c payload configuration (mon_sts12c) bit selects the payload configuration. when mon_sts12c is set to logic one, the timeslots #1 to #12 are part of the same concatenated payload defined by mon_msslen. when mon_sts12c is set to logic zero, the sts-1/stm-0 paths are defined with the mon_sts3c[3:0] register bit. the mon_sts12c register bit has precedence over the mon_sts3c[3:0] register bit.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 147 document id: pmc-2010883, issue 2 register 074h: wpp monitor byte error interrupt status bit type function default bit 15 unused x bit 14 unused x bit 13 unused x bit 12 unused x bit 11 r mon12_erri x bit 10 r mon11_erri x bit 9 r mon10_erri x bit 8 r mon9_erri x bit 7 r mon8_erri x bit 6 r mon7_erri x bit 5 r mon6_erri x bit 4 r mon5_erri x bit 3 r mon4_erri x bit 2 r mon3_erri x bit 1 r mon2_erri x bit 0 r mon1_erri x this register reports and acknowledges prbs byte error interrupts for all the timeslots in the receive working serial link. mon x _erri the monitor byte error interrupt status register is the status of the interrupt generated by each of the 12 sts-1 paths when an error has been detected. the mon x _erre is set high when the monitor is in the synchronized state and when an error in a prbs byte is detected in the sts-1 path x . this bit is independent of mon x _erre and is cleared after being read.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 148 document id: pmc-2010883, issue 2 register 075h: wpp monitor byte error interrupt enable bit type function default bit 15 unused x bit 14 unused x bit 13 unused x bit 12 unused x bit 11 r/w mon12_erre 0 bit 10 r/w mon11_erre 0 bit 9 r/w mon10_erre 0 bit 8 r/w mon9_erre 0 bit 7 r/w mon8_erre 0 bit 6 r/w mon7_erre 0 bit 5 r/w mon6_erre 0 bit 4 r/w mon5_erre 0 bit 3 r/w mon4_erre 0 bit 2 r/w mon3_erre 0 bit 1 r/w mon2_erre 0 bit 0 r/w mon1_erre 0 this register enables the assertion of prbs byte error interrupts for all the timeslots in the receive working bus. mon x _erre the monitor byte error interrupt enable register enables the interrupt for each of the 12 sts- 1 paths. when mon x _erre is set high it allows the byte error interrupt to generate an external interrupt on int.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 149 document id: pmc-2010883, issue 2 register 079h: wpp monitor synchronization interrupt status bit type function default bit 15 unused x bit 14 unused x bit 13 unused x bit 12 unused x bit 11 r mon12_synci x bit 10 r mon11_synci x bit 9 r mon10_synci x bit 8 r mon9_synci x bit 7 r mon8_synci x bit 6 r mon7_synci x bit 5 r mon6_synci x bit 4 r mon5_synci x bit 3 r mon4_synci x bit 2 r mon3_synci x bit 1 r mon2_synci x bit 0 r mon1_synci x this register reports the prbs monitor synchronization status change interrupts for all the timeslots in the receive working serial link. mon x _synci the monitor synchronization interrupt status register is set high when a change occurs in the monitor?s synchronization status. whenever a state machine of the x sts-1 path goes from synchronized to out of synchronization state or vice-versa, the mon x _synci is set high. this bit is independent of monx_synce and is cleared after it?s been read.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 150 document id: pmc-2010883, issue 2 register 07ah: wpp monitor synchronization interrupt enable bit type function default bit 15 unused x bit 14 unused x bit 13 unused x bit 12 unused x bit 11 r/w mon12_synce 0 bit 10 r/w mon11_synce 0 bit 9 r/w mon10_synce 0 bit 8 r/w mon9_synce 0 bit 7 r/w mon8_synce 0 bit 6 r/w mon7_synce 0 bit 5 r/w mon6_synce 0 bit 4 r/w mon5_synce 0 bit 3 r/w mon4_synce 0 bit 2 r/w mon3_synce 0 bit 1 r/w mon2_synce 0 bit 0 r/w mon1_synce 0 this register enables the assertion of change of prbs monitor synchronization status interrupts for all the timeslots in the receive working serial link. mon x _synce the monitor synchronization interrupt enable register allows each individual sts-1 path to generate an external interrupt on int. when mon x _synce is set high whenever a change occurs in the synchronization state of the monitor in sts-1 path x , generates an interrupt on int.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 151 document id: pmc-2010883, issue 2 register 07bh: wpp monitor synchronization state bit type function default bit 15 unused x bit 14 unused x bit 13 unused x bit 12 unused x bit 11 r mon12_syncv x bit 10 r mon11_syncv x bit 9 r mon10_syncv x bit 8 r mon9_syncv x bit 7 r mon8_syncv x bit 6 r mon7_syncv x bit 5 r mon6_syncv x bit 4 r mon5_syncv x bit 3 r mon4_syncv x bit 2 r mon3_syncv x bit 1 r mon2_syncv x bit 0 r mon1_syncv x this register reports the state of the prbs monitors for all the timeslots in the receive working serial link. mon x _syncv the monitor synchronization status register reflects the state of the monitor?s state machine. when mon x _syncv is set high the monitor?s state machine is in synchronization for the sts-1 path x . when mon x _syncv is low the monitor is not in synchronization for the sts-1 path x .
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 152 document id: pmc-2010883, issue 2 register 07ch: wpp performance counters transfer trigger bit type function default bit 15 unused x bit 14 unused x bit 13 unused x bit 12 unused x bit 11 unused x bit 10 unused x bit 9 unused x bit 8 unused x bit 7 unused x bit 6 unused x bit 5 unused x bit 4 unused x bit 3 unused x bit 2 unused x bit 1 unused x bit 0 r/w tip 0 this register controls and monitors the reporting of the error counter registers. a write in this register will trigger the transfer of the error counters to holding registers where they can be read. the value written in the register is not important. once the transfer is initiated, the tip bit is set high, and when the holding registers contain the value of the error counters, tip is set low. tip the transfer in progress bit reflects the state of the tip output signal. when tip is high, an error counter transfer has been initiated, but the counters are not transferred in the holding register yet. when tip is low, the value of the error counters is available to be read in the holding registers. this bit can be poll after an error counters transfer request, to determine if the counters are ready to be read.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 153 document id: pmc-2010883, issue 2 register 080h: ppp indirect address bit type function default bit 15 r busy 0 bit 14 r/w rdwrb 0 bit 13 unused x bit 12 unused x bit 11 unused x bit 10 unused x bit 9 r/w iaddr[3] 0 bit 8 r/w iaddr[2] 0 bit 7 r/w iaddr[1] 0 bit 6 r/w iaddr[0] 0 bit 5 unused x bit 4 unused x bit 3 r/w path[3] 0 bit 2 r/w path[2] 0 bit 1 r/w path[1] 0 bit 0 r/w path[0] 0 this register provides selection of configuration pages and of the timeslots to be accessed in the ppp block. writing to this register triggers an indirect register access. path[3:0] the path[3:0] bits select which time-multiplexed division is accessed by the current indirect transfer. path[3:0] time division # 0000 invalid sts-1 path 0001-1100 sts-1 path #1 to sts-1 path #12 1101-1111 invalid sts-1 path iaddr[3:0] the internal ram page bits select which page of the internal ram is access by the current indirect transfer. six pages are defined for the monitor (iaddr[3] = ?0?) : the configuration page, the prbs[22:7] page, the prbs[6:0] page, the b1/e1 value page, the monitor error count page and the received b1/e1 byte. iaddr[3:0] ram page 0000 sts-1 path configuration page 0001 prbs[22:7] page 0010 prbs[6:0] page 0011 reserved
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 154 document id: pmc-2010883, issue 2 0100 monitor error count page 0101 reserved four pages are defined for the generator (iaddr [3] = ?1?) : the configuration page, the prbs[22:7] page, the prbs[6:0] page and the b1/e1 value. iaddr[3:0] ram page 1000 sts-1 path configuration page 1001 prbs[22:7] page 1010 prbs[6:0] page 1011 reserved rdwrb the active high read and active low write (rdwrb) bit selects if the current access to the internal ram is an indirect read or an indirect write. writing to the indirect address register initiates an access to the internal ram. when rdwrb is set to logic one, an indirect read access to the ram is initiated. the data from the addressed location in the internal ram will be transfer to the indirect data register. when rdwrb is set to logic zero, an indirect write access to the ram is initiated. the data from the indirect data register will be transfer to the addressed location in the internal ram. busy the active high ram busy (busy) bit reports if a previously initiated indirect access to the internal ram has been completed. busy is set to logic one upon writing to the indirect address register. busy is set to logic zero, upon completion of the ram access. this register should be polled to determine when new data is available in the indirect data register.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 155 document id: pmc-2010883, issue 2 register 081h: ppp indirect data bit type function default bit 15 r/w data[15] 0 bit 14 r/w data[14] 0 bit 13 r/w data[13] 0 bit 12 r/w data[12] 0 bit 11 r/w data[11] 0 bit 10 r/w data[10] 0 bit 9 r/w data[9] 0 bit 8 r/w data[8] 0 bit 7 r/w data[7] 0 bit 6 r/w data[6] 0 bit 5 r/w data[5] 0 bit 4 r/w data[4] 0 bit 3 r/w data[3] 0 bit 2 r/w data[2] 0 bit 1 r/w data[1] 0 bit 0 r/w data[0] 0 this register contains the data read from the internal ram after an indirect read operation or the data to be inserted into the internal ram in an indirect write operation. data[15:0] the indirect access data (data[15:0]) bits hold the data transfer to or from the internal ram during indirect access. when rdwrb is set to logic one (indirect read), the data from the addressed location in the internal ram will be transfer to data[15:0]. busy should be polled to determine when the new data is available in data[15:0]. when rdwrb is set to logic zero (indirect write), the data from data[15:0] will be transferred to the addressed location in the internal ram. the indirect data register must contain valid data before the indirect write is initiated by writing to the indirect address register. data[15:0] has a different meaning depending on which page of the internal ram is being accessed.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 156 document id: pmc-2010883, issue 2 register 081h (iaddr = 0h): ppp monitor sts-1 path configuration bit type function default bit 15 unused x bit 14 unused x bit 13 unused x bit 12 unused x bit 11 unused x bit 10 unused x bit 9 unused x bit 8 unused x bit 7 unused x bit 6 r/w seq_prbsb 0 bit 5 r/w reserved 0 bit 4 unused x bit 3 w resync 0 bit 2 r/w inv_prbs 0 bit 1 r/w reserved 0 bit 0 r/w mon_ena 0 this register contains the definition of the ppp indirect data register (register 081h) when accessing indirect address 0h (iaddr[3:0] is ?0h? in register 080h). for sts-nc rates, only the first sts-1 has to be configured mon_ena monitor enable register bit, enables the prbs monitor for the sts-1 path specified in the path[3:0] of register 050h (tpp indirect address). if mon_ena is set to ?1?, a prbs sequence is generated and compare to the incoming one inserted in the payload of the sonet/sdh frame. if mon_ena is low, the data at the input of the monitor is ignored. inv_prbs this sets the monitor to invert the prbs before comparing it to the internally generated payload. when set high, the prbs bytes will be inverted, else they will be compared unmodified. resync this sets the monitor to re-initialize the prbs sequence. when set high the monitor?s state machine will be forced in the out of sync state and automatically try to resynchronize to the incoming stream.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 157 document id: pmc-2010883, issue 2 seq_prbsb this bit enables the monitoring of a prbs or sequential pattern inserted in the payload. when low the payload contains prbs bytes, and when high, a sequential pattern is monitored. reserved the reserved bits must be set low for correct operation of the sbslite.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 158 document id: pmc-2010883, issue 2 register 081h (iaddr = 1h): ppp monitor prbs[22:7] accumulator bit type function default bit 15 r/w prbs[22] 0 bit 14 r/w prbs[21] 0 bit 13 r/w prbs[20] 0 bit 12 r/w prbs[19] 0 bit 11 r/w prbs[18] 0 bit 10 r/w prbs[17] 0 bit 9 r/w prbs[16] 0 bit 8 r/w prbs[15] 0 bit 7 r/w prbs[14] 0 bit 6 r/w prbs[13] 0 bit 5 r/w prbs[12] 0 bit 4 r/w prbs[11] 0 bit 3 r/w prbs[10] 0 bit 2 r/w prbs[9] 0 bit 1 r/w prbs[8] 0 bit 0 r/w prbs[7] 0 this register contains the definition of the ppp indirect data register (register 081h) when accessing indirect address 1h (iaddr[3:0] is ?1h? in register 080h). for sts-nc rates, only the first sts-1 has to be configured. prbs[22:7] the prbs[22:7] register are the 16 msbs of the lfsr state of the sts-1 path specified in the indirect addressing register. it is possible to write in this register to change the initial state of the register.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 159 document id: pmc-2010883, issue 2 register 081h (iaddr = 2h): ppp monitor prbs[6:0] accumulator bit type function default bit 15 unused x bit 14 unused x bit 13 unused x bit 12 unused x bit 11 unused x bit 10 unused x bit 9 unused x bit 8 unused x bit 7 unused x bit 6 r/w prbs[6] 0 bit 5 r/w prbs[5] 0 bit 4 r/w prbs[4] 0 bit 3 r/w prbs[3] 0 bit 2 r/w prbs[2] 0 bit 1 r/w prbs[1] 0 bit 0 r/w prbs[0] 0 this register contains the definition of the ppp indirect data register (register 081h) when accessing indirect address 2h (iaddr[3:0] is ?2h? in register 080h). for sts-nc rates, only the first sts-1 has to be configured. prbs[7:0] the prbs[6:0] register are the 7 lsbs of the lfsr state of the sts-1 path specified in the indirect addressing register. it is possible to write in this register to change the initial state of the register.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 160 document id: pmc-2010883, issue 2 register 081h (iaddr = 4h): ppp monitor error count bit type function default bit 15 r err_cnt[15] x bit 14 r err_cnt[14] x bit 13 r err_cnt[13] x bit 12 r err_cnt[12] x bit 11 r err_cnt[11] x bit 10 r err_cnt[10] x bit 9 r err_cnt[9] x bit 8 r err_cnt[8] x bit 7 r err_cnt[7] x bit 6 r err_cnt[6] x bit 5 r err_cnt[5] x bit 4 r err_cnt[4] x bit 3 r err_cnt[3] x bit 2 r err_cnt[2] x bit 1 r err_cnt[1] x bit 0 r err_cnt[0] x this register contains the definition of the ppp indirect data register (register 061h) when accessing indirect address 4h (iaddr[3:0] is ?4h? in register 060h). err_cnt[15:0] the err_cnt[15:0] register contains the cumulative number of errors in the prbs bytes since the last error reporting event. errors are accumulated only when the monitor is in the synchronized state. each prbs byte will only contribute a single error, even if there are multiple errors within a single prbs byte. the transfer of the error counter to this holding register is triggered by an indirect write to this register or by writing the sbslite master signal monitor #1, accumulation trigger register (014h). the error counter is cleared and restarted after its value is transferred to the err_cnt[15:0] holding register. no errors are missed during the transfer. the error counter will not wrap around after reaching ffffh, it will saturate at this value.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 161 document id: pmc-2010883, issue 2 register 081h (iaddr = 8h): ppp generator sts-1 path configuration bit type function default bit 15 unused x bit 14 unused x bit 13 r/w reserved 0 bit 12 r/w linkena 0 bit 11 unused x bit 10 unused x bit 9 r/w reserved x bit 8 r/w linkena x bit 7 r/w reserved 0 bit 6 r/w reserved 0 bit 5 r/w seq_prbsb 0 bit 4 r/w reserved 0 bit 3 w force_err 0 bit 2 unused bit 1 r/w inv_prbs 0 bit 0 r/w reserved 0 this register contains the definition of the ppp indirect data register (register 081h) when accessing indirect address 8h (iaddr[3:0] is ?8h? in register 080h). for sts-nc rates, only the first sts-1 has to be configured. inv_prbs sets the generator to invert the prbs before inserting it in the payload. when set high, the prbs bytes will be inverted, else they will be inserted unmodified. force_err the force error bit is used to force bit errors in the inserted pattern. when a logic one is written, the msb of the next byte will be inverted, inducing a single bit error. the register clears itself when the operation is complete. seq_prbsb this bit enables the insertion of a prbs sequence or a sequential pattern in the payload. when low, the payload is filled with prbs bytes, and when high, a sequential pattern is inserted.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 162 document id: pmc-2010883, issue 2 linkena these two bits specify if prbs is to be inserted in the path through the tp8e. if linkena is high patterns are generated in the sonet/sdh frame to the tp8e, else no pattern is generated and the unmodified sonet/sdh input frame is passed to the tp8e. reserved the reserved bits must be set low for correct operation of the sbslite.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 163 document id: pmc-2010883, issue 2 register 081h (iaddr = 9h): ppp generator prbs[22:7] accumulator bit type function default bit 15 r/w prbs[22] 0 bit 14 r/w prbs[21] 0 bit 13 r/w prbs[20] 0 bit 12 r/w prbs[19] 0 bit 11 r/w prbs[18] 0 bit 10 r/w prbs[17] 0 bit 9 r/w prbs[16] 0 bit 8 r/w prbs[15] 0 bit 7 r/w prbs[14] 0 bit 6 r/w prbs[13] 0 bit 5 r/w prbs[12] 0 bit 4 r/w prbs[11] 0 bit 3 r/w prbs[10] 0 bit 2 r/w prbs[9] 0 bit 1 r/w prbs[8] 0 bit 0 r/w prbs[7] 0 this register contains the definition of the ppp indirect data register (register 081h) when accessing indirect address 9h (iaddr[3:0] is ?9h? in register 080h). for sts-nc rates, only the first sts-1 has to be configured. prbs[22:7] the prbs[22:7] register are the 16 msbs of the lfsr state of the sts-1 path specified in the indirect addressing register. it is possible to write in this register to change the initial state of the register.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 164 document id: pmc-2010883, issue 2 register 081h (iaddr = ah): ppp generator prbs[6:0] accumulator bit type function default bit 15 unused x bit 14 unused x bit 13 unused x bit 12 unused x bit 11 unused x bit 10 unused x bit 9 unused x bit 8 unused x bit 7 unused x bit 6 r/w prbs[6] 0 bit 5 r/w prbs[5] 0 bit 4 r/w prbs[4] 0 bit 3 r/w prbs[3] 0 bit 2 r/w prbs[2] 0 bit 1 r/w prbs[1] 0 bit 0 r/w prbs[0] 0 this register contains the definition of the ppp indirect data register (register 081h) when accessing indirect address ah (iaddr[3:0] is ?ah? in register 080h). for sts-nc rates, only the first sts-1 has to be configured. prbs[6:0] the prbs[6:0] register are the 7 lsbs of the lfsr state of the sts-1 path specified in the indirect addressing register. it is possible to write in this register to change the initial state of the register.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 165 document id: pmc-2010883, issue 2 register 082h: ppp generator payload configuration bit type function default bit 15 r/w reserved 0 bit 14 r/w gen_sts12c 0 bit 13 unused x bit 12 unused x bit 11 unused x bit 10 r/w reserved 0 bit 9 r/w reserved 0 bit 8 r/w reserved 0 bit 7 unused x bit 6 unused x bit 5 unused x bit 4 unused x bit 3 r/w gen_sts3c[3] 0 bit 2 r/w gen_sts3c[2] 0 bit 1 r/w gen_sts3c[1] 0 bit 0 r/w gen_sts3c[0] 0 this register configures the payload type of the timeslots in the incoming bus for processing by the protect prbs generator. gen_sts3c[0] the sts-3c/vc-4 payload configuration (gen_sts3c[0]) bit selects the payload configuration. when gen_sts3c[0] is set to logic one, the sts-1/vc-3 paths #1, #5 and #9 are part of a sts-3c/vc-4 payload. when gen_sts3c[0] is set to logic zero, the paths are sts-1/vc-3 payloads. the gen_sts12c register bit has precedence over the gen_sts3c[0] register bit. gen_sts3c[1] the sts-3c/vc-4 payload configuration (gen_sts3c[1]) bit selects the payload configuration. when gen_sts3c[1] is set to logic one, the sts-1/vc-3 paths #2, #6 and #10 are part of a sts-3c/vc-4 payload. when gen_sts3c[1] is set to logic zero, the paths are sts-1/vc-3 payloads. the gen_sts12c register bit has precedence over the gen_sts3c[1] register bit.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 166 document id: pmc-2010883, issue 2 gen_sts3c[2] the sts-3c/vc-4 payload configuration (gen_sts3c[2]) bit selects the payload configuration. when gen_sts3c[2] is set to logic one, the sts-1/vc-3 paths #3, #7 and #11 are part of a sts-3cvc-4 payload. when gen_sts3c[2] is set to logic zero, the paths are sts-1/vc-3 payloads. the gen_sts12c register bit has precedence over the gen_sts3c[2] register bit. gen_sts3c[4] the sts-3c/vc-4 payload configuration (gen_sts3c[3]) bit selects the payload configuration. when gen_sts3c[3] is set to logic one, the sts-1/vc-3 paths #4, #8 and #12 are part of a sts-3c/vc-4 payload. when gen_sts3c[3] is set to logic zero, the paths are sts-1/vc-3 payloads. the gen_sts12c register bit has precedence over the gen_sts3c[3] register bit. gen_sts12c the sts-12c/vc-4-4c payload configuration (gen_sts12c) bit selects the payload configuration. when gen_sts12c is set to logic one, the timeslots #1 to #12 are part of the same concatenated payload defined by gen_msslen. when gen_sts12c is set to logic zero, the sts-1/stm-0 paths are defined with the gen_sts3c[3:0] register bit. the gen_sts12c register bit has precedence over the gen_sts3c[3:0] register bit. reserved the reserved bits must be set low for correct operation of the sbslite.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 167 document id: pmc-2010883, issue 2 register 083h: ppp monitor payload configuration bit type function default bit 15 r/w reserved 0 bit 14 r/w mon_sts12c 0 bit 13 unused x bit 12 unused x bit 11 unused x bit 10 r/w reserved 0 bit 9 r/w reserved 0 bit 8 r/w reserved 0 bit 7 unused x bit 6 r/w reserved 0 bit 5 unused x bit 4 unused x bit 3 r/w mon_sts3c[3] 0 bit 2 r/w mon_sts3c[2] 0 bit 1 r/w mon_sts3c[1] 0 bit 0 r/w mon_sts3c[0] 0 this register configures the payload type of the timeslots in the receive protection serial link for processing by the prbs monitor section. mon_sts3c[0] the sts-3c/vc-4 payload configuration (mon_sts3c[0]) bit selects the payload configuration. when mon_sts3c[0] is set to logic one, the sts-1/stm-0 paths #1, #5 and #9 are part of a sts-3c/vc-4 payload. when mon_sts3c[0] is set to logic zero, the paths are sts-1/vc-3 payloads. the mon_sts12c register bit has precedence over the mon_sts3c[0] register bit. mon_sts3c[1] the sts-3c/vc-4 payload configuration (mon_sts3c[1]) bit selects the payload configuration. when mon_sts3c[1] is set to logic one, the sts-1/stm-0 paths #2, #6 and #10 are part of a sts-3c/vc-4 payload. when mon_sts3c[1] is set to logic zero, the paths are sts-1/vc-3 payloads. the mon_sts12c register bit has precedence over the mon_sts3c[1] register bit.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 168 document id: pmc-2010883, issue 2 mon_sts3c[2] the sts-3c/vc-4 payload configuration (mon_sts3c[2]) bit selects the payload configuration. when mon_sts3c[2] is set to logic one, the sts-1/stm-0 paths #3, #7 and #11 are part of a mon_sts-3c/vc-4 payload. when mon_sts3c[2] is set to logic zero, the paths are sts-1 (vc-3) payloads. the mon_sts12c register bit has precedence over the mon_sts3c[2] register bit. mon_sts3c[4] the sts-3c/vc-4 payload configuration (mon_sts3c[3]) bit selects the payload configuration. when mon_sts3c[3] is set to logic one, the sts-1/stm-0 paths #4, #8 and #12 are part of a sts-3c/vc-4 payload. when mon_sts3c[3] is set to logic zero, the paths are sts-1/vc-3 payloads. the mon_sts12c register bit has precedence over the mon_sts3c[3] register bit. mon_sts12c the sts-12c/vc-4-4c payload configuration (mon_sts12c) bit selects the payload configuration. when mon_sts12c is set to logic one, the timeslots #1 to #12 are part of the same concatenated payload defined by mon_msslen. when mon_sts12c is set to logic zero, the sts-1/stm-0 paths are defined with the mon_sts3c[3:0] register bit. the mon_sts12c register bit has precedence over the mon_sts3c[3:0] register bit. reserved the reserved bits must be set low for correct operation of the sbslite.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 169 document id: pmc-2010883, issue 2 register 084h: ppp monitor byte error interrupt status bit type function default bit 15 unused x bit 14 unused x bit 13 unused x bit 12 unused x bit 11 r mon12_erri x bit 10 r mon11_erri x bit 9 r mon10_erri x bit 8 r mon9_erri x bit 7 r mon8_erri x bit 6 r mon7_erri x bit 5 r mon6_erri x bit 4 r mon5_erri x bit 3 r mon4_erri x bit 2 r mon3_erri x bit 1 r mon2_erri x bit 0 r mon1_erri x this register reports and acknowledges prbs byte error interrupts for all the timeslots in the receive protection serial link. mon x _erri the monitor byte error interrupt status register is the status of the interrupt generated by each of the 12 sts-1 paths when an error has been detected. the mon x _erre is set high when the monitor is in the synchronized state and when an error in a prbs byte is detected in the sts-1 path x . this bit is independent of mon x _erre and is cleared after being read.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 170 document id: pmc-2010883, issue 2 register 085h: ppp monitor byte error interrupt enable bit type function default bit 15 unused x bit 14 unused x bit 13 unused x bit 12 unused x bit 11 r/w mon12_erre 0 bit 10 r/w mon11_erre 0 bit 9 r/w mon10_erre 0 bit 8 r/w mon9_erre 0 bit 7 r/w mon8_erre 0 bit 6 r/w mon7_erre 0 bit 5 r/w mon6_erre 0 bit 4 r/w mon5_erre 0 bit 3 r/w mon4_erre 0 bit 2 r/w mon3_erre 0 bit 1 r/w mon2_erre 0 bit 0 r/w mon1_erre 0 this register enables the assertion of prbs byte error interrupts for all the timeslots in the receive protection serial link. mon x _erre the monitor byte error interrupt enable register enables the interrupt for each of the 12 sts- 1 paths. when mon x _erre is set high it allows the byte error interrupt to generate an external interrupt on int.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 171 document id: pmc-2010883, issue 2 register 089h: ppp monitor synchronization interrupt status bit type function default bit 15 unused x bit 14 unused x bit 13 unused x bit 12 unused x bit 11 r mon12_synci x bit 10 r mon11_synci x bit 9 r mon10_synci x bit 8 r mon9_synci x bit 7 r mon8_synci x bit 6 r mon7_synci x bit 5 r mon6_synci x bit 4 r mon5_synci x bit 3 r mon4_synci x bit 2 r mon3_synci x bit 1 r mon2_synci x bit 0 r mon1_synci x this register reports the prbs monitor synchronization status change interrupts for all the timeslots in the receive protection serial link. mon x _synci the monitor synchronization interrupt status register is set high when a change occurs in the monitor?s synchronization status. whenever a state machine of the x sts-1 path goes from synchronized to out of synchronization state or vice-versa, the mon x _synci is set high. this bit is independent of monx_synce and is cleared after it?s been read.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 172 document id: pmc-2010883, issue 2 register 08ah: ppp monitor synchronization interrupt enable bit type function default bit 15 unused x bit 14 unused x bit 13 unused x bit 12 unused x bit 11 r/w mon12_synce 0 bit 10 r/w mon11_synce 0 bit 9 r/w mon10_synce 0 bit 8 r/w mon9_synce 0 bit 7 r/w mon8_synce 0 bit 6 r/w mon7_synce 0 bit 5 r/w mon6_synce 0 bit 4 r/w mon5_synce 0 bit 3 r/w mon4_synce 0 bit 2 r/w mon3_synce 0 bit 1 r/w mon2_synce 0 bit 0 r/w mon1_synce 0 this register enables the assertion of change of prbs monitor synchronization status interrupts for all the timeslots in the receive protection serial link. mon x _synce the monitor synchronization interrupt enable register allows each individual sts-1 path to generate an external interrupt on int. when mon x _synce is set high whenever a change occurs in the synchronization state of the monitor in sts-1 path x , generates an interrupt on int.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 173 document id: pmc-2010883, issue 2 register 08bh: ppp monitor synchronization state bit type function default bit 15 unused x bit 14 unused x bit 13 unused x bit 12 unused x bit 11 r mon12_syncv x bit 10 r mon11_syncv x bit 9 r mon10_syncv x bit 8 r mon9_syncv x bit 7 r mon8_syncv x bit 6 r mon7_syncv x bit 5 r mon6_syncv x bit 4 r mon5_syncv x bit 3 r mon4_syncv x bit 2 r mon3_syncv x bit 1 r mon2_syncv x bit 0 r mon1_syncv x this register reports the state of the prbs monitors for all the timeslots in the receive protection serial link. mon x _syncv the monitor synchronization status register reflects the state of the monitor?s state machine. when mon x _syncv is set high the monitor?s state machine is in synchronization for the sts-1 path x . when mon x _syncv is low the monitor is not in synchronization for the sts-1 path x .
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 174 document id: pmc-2010883, issue 2 register 08ch: ppp performance counters transfer trigger bit type function default bit 15 unused x bit 14 unused x bit 13 unused x bit 12 unused x bit 11 unused x bit 10 unused x bit 9 unused x bit 8 unused x bit 7 unused x bit 6 unused x bit 5 unused x bit 4 unused x bit 3 unused x bit 2 unused x bit 1 unused x bit 0 r/w tip 0 this register controls and monitors the reporting of the error counter registers. a write in this register will trigger the transfer of the error counters to holding registers where they can be read. the value written in the register is not important. once the transfer is initiated, the tip bit is set high, and when the holding registers contain the value of the error counters, tip is set low. tip the transfer in progress bit reflects the state of the tip output signal. when tip is high, an error counter transfer has been initiated, but the counters are not transferred in the holding register yet. when tip is low, the value of the error counters is available to be read in the holding registers. this bit can be poll after an error counters transfer request, to determine if the counters are ready to be read.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 175 document id: pmc-2010883, issue 2 register 090h: wilc transmit fifo data high bit type function default bit 15-0 r/w tdat[31:16] 0 when writing data to the transmit fifo, this register must be written to before register 091h. tdat[31:16] tdat[31:16] and tdat[15:0] form the 32 bit wide data word to be written to the fifo. the fifo is organized as 32 bits wide and 64 words deep, giving a total of eight 32 byte messages.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 176 document id: pmc-2010883, issue 2 register 091h: wilc transmit fifo data low bit type function default bit 15-0 r/w tdat[15:0] 0 writing to this register will initiate a transfer of tdat[31:0] into the transmit fifo. tdat[15:0] tdat[31:16] and tdat[15:0] form the 32 bit wide data word to be written to the fifo. the fifo is organized as 32 bits wide and 64 words deep, giving a total of eight 32 byte messages.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 177 document id: pmc-2010883, issue 2 register 093h: wilc transmit control register bit type function default bit 15:8 r/w tx_aux[7:0] 00000000 bit 7:6 r unused 00 bit 5:4 r/w tx_link[1:0] 00 bit 3:2 r unused 00 bit 1 r/w tx_crc_swiz_en 0 bit 0 r/w tx_bypass 0 tx_bypass when this bit is set to ?1?, the blocks message transmit functions are bypassed. no messages are inserted into the transmit data. the transmit message fifo ram is disabled and thus message data writes are ignored. tx_crc_swiz_en when this bit is set to ?1?, the calculated crc-16 is bit reversed before being transmitted. this facility can be used for diagnostic testing of crc-16 generation and checking functionality. tx_link[1:0] these bits are transmitted in the link bits of the message header of the next available message. on reads these bit return the last written value. tx_aux[7:0] these bits form the input to an auxiliary channel between cpus at each end of the link. their use is at the software developers discretion. data written to this register will be transmitted in the aux header byte of each subsequent message to the other end of the inband link. a new value of tx_aux will be transmitted at the next available message. data read from this register will be the data previously written.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 178 document id: pmc-2010883, issue 2 register 095h: wilc transmit status and fifo synch register bit type function default bit 15 r tx_msg_lvl_valid x bit 14:13 r tx_link[1:0] 00 bit 12:11 r ipage[1:0] xx bit 10:8 r iuser[2:0] x00 bit 7:6 r unused 00 bit 5:2 r tx_msg_lvl[3:0] 0000 bit 1 r tx_fi_busy 0 bit 0 w tx_xfer_sync 0 tx_xfer_sync writing ?1? to this bit initializes the next write sequence to be to the beginning of the next message. after a ?1? had been written successive writes to the transmit fifo will be to location zero of the next available slot. if a partial message has been written, tx_xfer_sync indicates that the current message is complete and that subsequent writes will be to the next message. if more than 32 bytes are written, the 33rd byte will be the first byte of the next message. the purpose of this bit is to unambiguously align the message boundaries. another use would be to abandon the current write and move the write pointer to the beginning of the next message. (previous message data will remain in the unwritten portion of the message being abandoned, which will have to be ignored by the receiving software). if the message fifo pointers are already at a message boundary then writing this bit to a ?1? will have no affect. on reads this bit is always returned as a ?0?. tx_fi_busy this bit indicates that the internal hardware is transferring the data from the transmit fifo registers (tdat) into the internal ram. this bit need not be read by software if the time interval between successive 32 bit transfers is greater than 3 sysclk cycles. tx_msg_lvl[3:0] this indicates the current number of messages in the txfifo. tx_msg_lvl[3:0] number of messages 0000 0 :: 1000 8
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 179 document id: pmc-2010883, issue 2 values greater than 1000 will not occur. the number of free messages available in the fifo is given by 8 ? tx_msg_lvl. iuser[2:0] these bits are a reflection of the user[2:0] bits output in the header of the in-band link on the transmit working serial link. iuser[2] is sourced from the iuser2 input to the sbslite. iuser[1:0] is sourced from the txwuser[1:0] bits of register 008h. ipage[1:0] these bits are a reflection of the page[1:0] bits output in the header of the in-band link on the transmit working serial link. page[1] reflects the current memory page used by the imsu. page[0] reflects the current memory page used by the omsu. tx_link[1:0] these bits reflect the last written value of the tx_link[1:0] field of the wilc transmit control register. the upper byte of this register therefore reflects all of the configurable bits of the message header1 byte. tx_msg_lvl_valid this bit indicates that the value of tx_msg_lvl is valid. when read with a logic zero this register should be re-read until tx_msg_lvl_valid is a logic one. this bit will be clear for only approximately 0.3% of the time.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 180 document id: pmc-2010883, issue 2 register 096h: wilc receive fifo data high bit type function default bit 15-0 r rdat[31:16] 0 when reading data out of the receive fifo, this register must be read before register 097h. rdat[31:16] rdat[31:16] and rdat[15:0] form the 32 bit wide data word read from the fifo. the fifo is organized as 32 bits wide and 64 words deep, giving a total of eight 32 byte messages. this register must be read before register 097h.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 181 document id: pmc-2010883, issue 2 register 097h: wilc receive fifo data low bit type function default bit 15-0 r rdat[15:0] 0 reading this register initiates a read access to the next location in the receive fifo. rdat[15:0] rdat[31:16] and rdat[15:0] form the 32 bit wide data word read from the fifo. the fifo is organized as 32 bits wide and 64 words deep, giving a total of eight 32 byte messages.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 182 document id: pmc-2010883, issue 2 register 099h: wilc receive fifo control register bit type function default bit 15:3 r unused 0 bit 2 r/w fast_rd_en 0 bit 1 r/w rx_crc_swiz_en 0 bit 0 r/w rx_bypass 0 rx_bypass when this bit is set to a logic one. the wilc?s message receive functions are bypassed and no messages are extracted from the receive working serial link. the receive message fifo ram is disabled and thus message data reads will return undefined data. rx_crc_swiz_en when this bit is set to a logic one, the calculated crc-16 is bit reversed before being compared with crc-16 bytes of the received message. this facility can be used for diagnostic testing of crc-16 generation and checking functionality fast_rd_en when this bit is set to ?1?, the time to read the receive fifo is reduced by 1 sysclk cycle. for receive fifo reads induced by writing the rx_xfer_sync bit to a ?1? the time for the completion of the receive fifo read is reduced from approximately 5 sysclk cycles when fast_rd_en = ?0? to approximately 4 sysclk cycles when fast_rd_en = ?1?. for receive fifo reads induced by reading from the receive fifo data register low the time for the completion of the receive fifo read is reduced from approximately 4 sysclk cycles when fast_rd_en = ?0? to approximately 3 sysclk cycles when fast_rd_en = ?1?.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 183 document id: pmc-2010883, issue 2 register 09ah: wilc receive auxiliary register bit type function default bit 15 r rx_stts_valid x bit 14:8 r unused 0 bit 7:0 r rx_aux[7:0] 00000000 rx_aux[7:0] these bits constitute the output from an auxiliary channel between cpus at each end of the link. their use is at the software developers? discretion. a read from this register will return the aux header byte of the last message received (without a crc-16 error). rx_stts_valid this bit indicates that the value of rx_aux is valid. when read with a ?0? this register should be re-read until rx_stts_valid is a ?1?. this bit will be cleared for less than 0.15% of the time.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 184 document id: pmc-2010883, issue 2 register 09bh: wilc receive status and fifo synch register bit type function default bit 15 r rx_stts_valid x bit 14:13 r rx_link[1:0] 00 bit 12:11 r opage[1:0] 00 bit 10:8 r ouser[2:0] 000 bit 7 r crc_err 0 bit 6 r hdr_crc_err 0 bit 5:2 r rx_msg_lvl[3:0] 0000 bit 1 r rx_fi_busy 0 bit 0 r rx_sync_done x bit 0 w rx_xfer_sync 0 when this register is read, it returns the status for the receive message channel. when a logic one is written into bit 0 of this register, it is used to synchronize the receive fifo to the start of a message boundary or perform a message skip. rx_xfer_sync writing a logic one to this bit initiates a read sequence from the start of the next unread message. the hardware aligns the message read buffer address to the start of the next unread message and prefetches the first dword from the unread message buffer so that it is ready to be read from the wilc receive fifo data registers. an unread message in this context means that the s/w has not read any of the message payload data by reading the wilc receive fifo data registers. after the rx xfer sync process has been completed successive reads from the receive fifo return the last dword read from the receive fifo and prefetch the next dword (when available). this bit must be written to a logic one at the start of a message read sequence. when multiple complete messages are being read (software knows that there is more than one message in the fifo using the rx_msg_lvl bits) this bit does not need to be written between individual message reads. it must be written for the 1 st message. when software uses a variable length message protocol it may want to abandon reading a message buffer before reading the entire message buffer of 8 dwords (16 words). in this case this bit must be written with a ?1? to move the message pointer to the start of the next message buffer before starting the read of that buffer. after writing this bit with a logic one software should not start reading the fifo until the rx_fi_busy bit has cleared.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 185 document id: pmc-2010883, issue 2 in the worst case this will take 5 sysclk cycles when fast_rd_en = ?1? and 4 sysclk cycles when fast_rd_en = ?0?. at this point the 1 st dword of the message is available for reading and the crc_err bit is valid. software may abandon a crc errored message without reading the message buffer by writing this bit with a logic one again. on reads this bit is always returns the rx_sync_done status. rx_sync_done this bit indicates the status of an rx_xfer_sync operation. when this bit is a logic one it indicates that an rx_xfer_sync has been done. s/w should check this bit at the start of a message read sequence or when attempting to perform a message skip sequence. rx_fi_busy this bit indicates that the internal hardware is transferring data from the receive fifo ram into the receive fifo registers. the bit is set following a write to this register with the rx_xfer_sync bit set or following a read from the wilc receive fifo data low register. following an rx_xfer_sync write this bit need not be read by software if the time interval to the successive receive fifo data register read is greater than approximately 5 sysclk cycles when fast_rd_en = ?1? or approximately 4 sysclk cycles when fast_rd_en = ?0?. this bit need not be read by software if the time interval between successive receive fifo data register reads greater than approximately 4 sysclk cycles when fast_rd_en = ?1? or approximately 3 sysclk cycles when fast_rd_en = ?0?. this means between a read access from the wilc received fifo data low register and a read from the wilc received fifo data high register. note that there is no time restriction between a read accesses from the wilc received fifo data high register and a read from the wilc received fifo data low register rx_msg_lvl[3:0] this indicates the current number of messages in the receive fifo. rx_msg_lvl[3:0] number of messages 0000 0 :: 1000 8 values greater than 1000 will not occur.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 186 document id: pmc-2010883, issue 2 hdr_crc_err if this bit is set to a logic one, the last message slot received was received with an errored crc-16 field. this bits is updated every message slot. this bit is provided as status only. crc_err if this bit it set to ?1?, the message at the head of the receive fifo has an errored crc-16 field. the usual sequence would be to read this register before reading the message buffer to check if the message buffer that will be read from next has been received with a crc error. if a receive fifo synchronization has been started the value of this bit is invalid until the rx_xfer_sync operation has completed. when fast_rd_en is a logic one this bit is valid when rx_fi_busy is a logic zero following a receive fifo synchronization. when fast_rd_en is a logic zero the values of rx_fi_busy and crc_err change concurrently and a further read should be made after rx_fi_busy is sampled as a logic zero before checking the value of this bit. ouser[2:0] these bits are a reflection of the user[2:0] bits received in the message header of the latest received message (without a crc-16 error) on the working serial link. ouser[2] is output from the sbslite on ouser2 when the working serial link is selected. opage[1:0] these bits are a reflection of the page[1:0] bits received in the message header of the latest received message (without a crc-16 error) on the working serial link. when the working serial link is selected, opage[1] controls the active page of the imsu and opage[0] controls the active page of the omsu. rx_link[1:0] these bits are a reflection of the link[1:0] bits received in the message header of the latest received message (without a crc-16 error) on the working serial link. rx_stts_valid this bit indicates that the values of rx_msg_lvl , rx_link, opage, ouser are valid. when read with a logic zero this register should be re-read until rx_stts_valid is a logic one. this bit will be cleared for only approximately 0.15% of time.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 187 document id: pmc-2010883, issue 2 register 09dh: wilc interrupt enable and control register. bit type function default bit 15:13 r unused 000 bit 12:11 r/w rx_timeout_val[1:0] 00 bit 10:8 r/w rx_threshold_val[2:0] 101 bit 7 r unused 0 bit 6 r/w rx_timeoute 0 bit 5 r/w rx_thrshlde 0 bit 4 r/w rx_ovflwe 0 bit 3 r/w rx_link_chge 0 bit 2:1 r/w opage_chge[1:0] 00 bit 0 r/w ouser0_chge 0 ouser0_chge writing a logic one to the rx_ouser0_chge bit enables the generation of an interrupt on a change of state from a logic zero to a logic one of received message header bit ouser[0]. opage_chge[1:0] writing a logic one to the opage_chge[n] bit enables the generation of an interrupt on a change of state of the received page bits. the opage bits that changed value are indicated by a logic one in the corresponding opage_chgi[n]. rx_link_chge writing a logic one to the rx_link_chge bit enables the generation of an interrupt on a change of state of the received link bits. when either of the received link bits has changed value the rx_link_chgi bit will be set to a logic one. rx_ovflwe writing a logic one to the rx_ovflwe bit enables the generation of an interrupt when rx_ovflwi is a logic one. rx_thrshlde writing a logic one to the rx_thrshlde bit enables the generation of an interrupt when rx_thrshldi is a logic one. rx_timeoute writing a logic one to the rx_timeoute bit enables the generation of an interrupt when rx_timeouti is a logic one.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 188 document id: pmc-2010883, issue 2 rx_threshold_val[2:0] variable threshold dictates the minimum number of messages required to be in the rxfifo before an interrupt is generated. ?000? = 1 message ?111? = 8 messages. rx_threshold_val[2:0] messages 000 1 001 2 010 3 011 4 100 5 101 6 110 7 111 8 rx_timeout_val[1:0] these bits specify a variable delay, relative to a read from the receive message fifo, in steps of 125 us, before an interrupt is generated, if the receive fifo level is greater than 0. the objective is to stop stale messages collecting in the rxfifo. rx_timeout_val[1:0] nominal delay in frames minimum delay from message reception maximum delay from message reception minimum delay from fifo read maximum delay from fifo read 00 1 152 s 222 s 125 s 250 s 01 2 277 s 347 s 250 s 375 s 10 3 402 s 472 s 375 s 500 s 11 4 527 s 597 s 500 s 625 s
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 189 document id: pmc-2010883, issue 2 register 09fh: wilc interrupt reason register bit type function default bit 15:7 r unused 0 bit 6 r rx_timeouti 0 bit 5 r rx_thrshldi 0 bit 4 r rx_ovflwi 0 bit 3 r rx_link_chgi 0 bit 2:1 r opage_chgi[1:0] 00 bit 0 r ouser0_chgi 0 this register contains the status of events that may be enabled to generate interrupts.. all bits in this register are cleared on read. ouser0_chgi a logic one in this bit indicates that the last received value of the ouser[0] header bit has changed from a ?0? to a ?1? from the previously received values. this bit is cleared on a read. opage_chgi[1:0] a logic one in these bits indicates that the last received value of the corresponding opage[1:0] header bits has changed from the previously received values. these bits are cleared on read. rx_link_chgi a logic one in this bit indicates that the last received value of the link[1:0] header bits has changed from the previously received values. this bit is cleared on a read. rx_ovflwi a logic one in this bit indicates that a receive fifo overflow has occurred. this bit is cleared on a read. rx_thrshldi a logic one in this bit indicates that the receive fifo threshold has been reached. this bit is cleared on a read. rx_timeouti a logic one in this bit indicates a receive fifo timeout. this bit is cleared on read.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 190 document id: pmc-2010883, issue 2 register 0a0h: pilc transmit fifo data high bit type function default bit 15-0 r/w tdat[31:16] 0 when writing data to the transmit fifo, this register must be written to before register 0a1h. tdat[31:16] tdat[31:16] and tdat[15:0] form the 32-bit wide data word to be written to the fifo. the fifo is organized as 32 bits wide and 64 words deep, giving a total of eight 32 byte messages.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 191 document id: pmc-2010883, issue 2 register 0a1h: pilc transmit fifo data low bit type function default bit 15-0 r/w tdat[15:0] 0 writing to this register will initiate a transfer of tdat[31:0] into the transmit fifo. tdat[15:0] tdat[31:16] and tdat[15:0] form the 32-bit wide data word to be written to the fifo. the fifo is organized as 32 bits wide and 64 words deep, giving a total of eight 32 byte messages.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 192 document id: pmc-2010883, issue 2 register 0a3h: pilc transmit control register bit type function default bit 15:8 r/w tx_aux[7:0] 00000000 bit 7:6 r unused 00 bit 5:4 r/w tx_link[1:0] 00 bit 3:2 r unused 00 bit 1 r/w tx_crc_swiz_en 0 bit 0 r/w tx_bypass 0 tx_bypass when this bit is set to ?1?, the blocks message transmit functions are bypassed. no messages are inserted into the transmit data. the transmit message fifo ram is disabled and thus message data writes are ignored. tx_crc_swiz_en when this bit is set to ?1?, the calculated crc-16 is bit reversed before being transmitted. this facility can be used for diagnostic testing of crc-16 generation and checking functionality. tx_link[1:0] these bits are transmitted in the link bits of the message header of the next available message. on reads these bit return the last written value. tx_aux[7:0] these bits form the input to an auxiliary channel between cpus at each end of the link. their use is at the software developers discretion. data written to this register will be transmitted in the aux header byte of each subsequent message to the other end of the inband link. a new value of tx_aux will be transmitted at the next available message. data read from this register will be the data previously written.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 193 document id: pmc-2010883, issue 2 register 0a5h: pilc transmit status and fifo synch register bit type function default bit 15 r tx_msg_lvl_valid x bit 14:13 r tx_link[1:0] 00 bit 12:11 r ipage[1:0] xx bit 10:8 r iuser[2:0] x00 bit 7:6 r unused 00 bit 5:2 r tx_msg_lvl[3:0] 0000 bit 1 r tx_fi_busy 0 bit 0 w tx_xfer_sync 0 tx_xfer_sync writing ?1? to this bit initializes the next write sequence to be to the beginning of the next message. after a ?1? had been written successive writes to the transmit fifo will be to location zero of the next available slot. if a partial message has been written, tx_xfer_sync indicates that the current message is complete and that subsequent writes will be to the next message. if more than 32 bytes are written, the 33rd byte will be the first byte of the next message. the purpose of this bit is to unambiguously align the message boundaries. another use would be to abandon the current write and move the write pointer to the beginning of the next message. (previous message data will remain in the unwritten portion of the message being abandoned, which will have to be ignored by the receiving software). if the message fifo pointers are already at a message boundary then writing this bit to a ?1? will have no affect. on reads this bit is always returned as a ?0?. tx_fi_busy this bit indicates that the internal hardware is transferring the data from the transmit fifo registers (tdat) into the internal ram. this bit need not be read by software if the time interval between successive 32 bit transfers is greater than 3 sysclk cycles. tx_msg_lvl[3:0] this indicates the current number of messages in the txfifo. tx_msg_lvl[3:0] number of messages 0000 0 :: 1000 8
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 194 document id: pmc-2010883, issue 2 values greater than 1000 will not occur. the number of free messages available in the fifo is given by 8 ? tx_msg_lvl. iuser[2:0] these bits are a reflection of the user[2:0] bits output in the header of the in-band link on the transmit protection serial link. iuser[2] is sourced from the iuser2 input to the sbslite. iuser[1:0] is sourced from the txwuser[1:0] bits of register 008h. ipage[1:0] these bits are a reflection of the page[1:0] bits output in the header of the in-band link on the transmit protection serial link. page[1] reflects the current memory page used by the imsu. page[0] reflects the current memory page used by the omsu. tx_link[1:0] these bits reflect the last written value of the tx_link[1:0] field of the pilc transmit control register. the upper byte of this register therefore reflects all of the configurable bits of the message header1 byte. tx_msg_lvl_valid this bit indicates that the value of tx_msg_lvl is valid. when read with a logic zero this register should be re-read until tx_msg_lvl_valid is a logic one. this bit will be clear for only approximately 0.3% of the time.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 195 document id: pmc-2010883, issue 2 register 0a6h: pilc receive fifo data high bit type function default bit 15-0 r rdat[31:16] 0 when reading data out of the receive fifo, this register must be read before register 0a7h. rdat[31:16] rdat[31:16] and rdat[15:0] form the 32 bit wide data word read from the fifo. the fifo is organized as 32 bits wide and 64 words deep, giving a total of eight 32 byte messages. this register must be read before register 097h.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 196 document id: pmc-2010883, issue 2 register 0a7h: pilc receive fifo data low bit type function default bit 15-0 r rdat[15:0] 0 reading this register initiates a read access to the next location in the receive fifo. rdat[15:0] rdat[31:16] and rdat[15:0] form the 32 bit wide data word read from the fifo. the fifo is organized as 32 bits wide and 64 words deep, giving a total of eight 32 byte messages.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 197 document id: pmc-2010883, issue 2 register 0a9h: pilc receive fifo control register bit type function default bit 15:3 r unused 0 bit 2 r/w fast_rd_en 0 bit 1 r/w rx_crc_swiz_en 0 bit 0 r/w rx_bypass 0 rx_bypass when this bit is set to a logic one. the pilc?s message receive functions are bypassed and no messages are extracted from the receive working serial link. the receive message fifo ram is disabled and thus message data reads will return undefined data. rx_crc_swiz_en when this bit is set to a logic one, the calculated crc-16 is bit reversed before being compared with crc-16 bytes of the received message. this facility can be used for diagnostic testing of crc-16 generation and checking functionality fast_rd_en when this bit is set to ?1?, the time to read the receive fifo is reduced by 1 sysclk cycle. for receive fifo reads induced by writing the rx_xfer_sync bit to a ?1? the time for the completion of the receive fifo read is reduced from approximately 5 sysclk cycles when fast_rd_en = ?0? to approximately 4 sysclk cycles when fast_rd_en = ?1?. for receive fifo reads induced by reading from the receive fifo data register low the time for the completion of the receive fifo read is reduced from approximately 4 sysclk cycles when fast_rd_en = ?0? to approximately 3 sysclk cycles when fast_rd_en = ?1?.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 198 document id: pmc-2010883, issue 2 register 0aah: pilc receive auxiliary register bit type function default bit 15 r rx_stts_valid x bit 14:8 r unused 0 bit 7:0 r rx_aux[7:0] 00000000 rx_aux[7:0] these bits constitute the output from an auxiliary channel between cpus at each end of the link. their use is at the software developers? discretion. a read from this register will return the aux header byte of the last message received (without a crc-16 error). rx_stts_valid this bit indicates that the value of rx_aux is valid. when read with a ?0? this register should be re-read until rx_stts_valid is a ?1?. this bit will be cleared for less than 0.15% of the time.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 199 document id: pmc-2010883, issue 2 register 0abh: pilc receive status and fifo synch register bit type function default bit 15 r rx_stts_valid x bit 14:13 r rx_link[1:0] 00 bit 12:11 r opage[1:0] 00 bit 10:8 r ouser[2:0] 000 bit 7 r crc_err 0 bit 6 r hdr_crc_err 0 bit 5:2 r rx_msg_lvl[3:0] 0000 bit 1 r rx_fi_busy 0 bit 0 r rx_sync_done x bit 0 w rx_xfer_sync 0 when this register is read, it returns the status for the receive message channel. when a logic one is written into bit 0 of this register, it is used to synchronize the receive fifo to the start of a message boundary or perform a message skip. rx_xfer_sync writing a logic one to this bit initiates a read sequence from the start of the next unread message. the hardware aligns the message read buffer address to the start of the next unread message and prefetches the first dword from the unread message buffer so that it is ready to be read from the wilc receive fifo data registers. an unread message in this context means that the s/w has not read any of the message payload data by reading the wilc receive fifo data registers. after the rx xfer sync process has been completed successive reads from the receive fifo return the last dword read from the receive fifo and prefetch the next dword (when available). this bit must be written to a logic one at the start of a message read sequence. when multiple complete messages are being read (software knows that there is more than one message in the fifo using the rx_msg_lvl bits) this bit does not need to be written between individual message reads. it must be written for the 1 st message. when software uses a variable length message protocol it may want to abandon reading a message buffer before reading the entire message buffer of 8 dwords (16 words). in this case this bit must be written with a ?1? to move the message pointer to the start of the next message buffer before starting the read of that buffer. after writing this bit with a logic one software should not start reading the fifo until the rx_fi_busy bit has cleared.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 200 document id: pmc-2010883, issue 2 in the worst case this will take 5 sysclk cycles when fast_rd_en = ?1? and 4 sysclk cycles when fast_rd_en = ?0?. at this point the 1 st dword of the message is available for reading and the crc_err bit is valid. software may abandon a crc errored message without reading the message buffer by writing this bit with a logic one again. on reads this bit is always returns the rx_sync_done status. rx_sync_done this bit indicates the status of an rx_xfer_sync operation. when this bit is a logic one it indicates that an rx_xfer_sync has been done. s/w should check this bit at the start of a message read sequence or when attempting to perform a message skip sequence. rx_fi_busy this bit indicates that the internal hardware is transferring data from the receive fifo ram into the receive fifo registers. the bit is set following a write to this register with the rx_xfer_sync bit set or following a read from the pilc receive fifo data low register. following an rx_xfer_sync write this bit need not be read by software if the time interval to the successive receive fifo data register read is greater than approximately 5 sysclk cycles when fast_rd_en = ?1? or approximately 4 sysclk cycles when fast_rd_en = ?0?. this bit need not be read by software if the time interval between successive receive fifo data register reads greater than approximately 4 sysclk cycles when fast_rd_en = ?1? or approximately 3 sysclk cycles when fast_rd_en = ?0?. this means between a read access from the pilc received fifo data low register and a read from the pilc received fifo data high register. note that there is no time restriction between a read accesses from the pilc received fifo data high register and a read from the pilc received fifo data low register rx_msg_lvl[3:0] this indicates the current number of messages in the receive fifo. rx_msg_lvl[3:0] number of messages 0000 0 :: 1000 8 values greater than 1000 will not occur.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 201 document id: pmc-2010883, issue 2 hdr_crc_err if this bit is set to a logic one, the last message slot received was received with an errored crc-16 field. this bits is updated every message slot. this bit is provided as status only. crc_err if this bit it set to ?1?, the message at the head of the receive fifo has an errored crc-16 field. the usual sequence would be to read this register before reading the message buffer to check if the message buffer that will be read from next has been received with a crc error. if a receive fifo synchronization has been started the value of this bit is invalid until the rx_xfer_sync operation has completed. when fast_rd_en is a logic one this bit is valid when rx_fi_busy is a logic zero following a receive fifo synchronization. when fast_rd_en is a logic zero the values of rx_fi_busy and crc_err change concurrently and a further read should be made after rx_fi_busy is sampled as a logic zero before checking the value of this bit. ouser[2:0] these bits are a reflection of the user[2:0] bits received in the message header of the latest received message (without a crc-16 error) on the protection serial link. ouser[2] is output from the sbslite on ouser2 when the protection serial link is selected. opage[1:0] these bits are a reflection of the page[1:0] bits received in the message header of the latest received message (without a crc-16 error) on the protection serial link. when the protection serial link is selected, opage[1] controls the active page of the imsu and opage[0] controls the active page of the omsu. rx_link[1:0] these bits are a reflection of the link[1:0] bits received in the message header of the latest received message (without a crc-16 error) on the protection serial link. rx_stts_valid this bit indicates that the values of rx_msg_lvl , rx_link, opage, ouser are valid. when read with a logic zero this register should be re-read until rx_stts_valid is a logic one. this bit will be cleared for only approximately 0.15% of time.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 202 document id: pmc-2010883, issue 2 register 0adh: pilc interrupt enable and control register. bit type function default bit 15:13 r unused 000 bit 12:11 r/w rx_timeout_val[1:0] 00 bit 10:8 r/w rx_threshold_val[2:0] 101 bit 7 r unused 0 bit 6 r/w rx_timeoute 0 bit 5 r/w rx_thrshlde 0 bit 4 r/w rx_ovflwe 0 bit 3 r/w rx_link_chge 0 bit 2:1 r/w opage_chge[1:0] 00 bit 0 r/w ouser0_chge 0 ouser0_chge writing a logic one to the rx_ouser0_chge bit enables the generation of an interrupt on a change of state from a logic zero to a logic one of received message header bit ouser[0]. opage_chge[1:0] writing a logic one to the opage_chge[n] bit enables the generation of an interrupt on a change of state of the received page bits. the opage bits that changed value are indicated by a logic one in the corresponding opage_chgi[n]. rx_link_chge writing a logic one to the rx_link_chge bit enables the generation of an interrupt on a change of state of the received link bits. when either of the received link bits has changed value the rx_link_chgi bit will be set to a logic one. rx_ovflwe writing a logic one to the rx_ovflwe bit enables the generation of an interrupt when rx_ovflwi is a logic one. rx_thrshlde writing a logic one to the rx_thrshlde bit enables the generation of an interrupt when rx_thrshldi is a logic one. rx_timeoute writing a logic one to the rx_timeoute bit enables the generation of an interrupt when rx_timeouti is a logic one.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 203 document id: pmc-2010883, issue 2 rx_threshold_val[2:0] variable threshold dictates the minimum number of messages required to be in the rxfifo before an interrupt is generated. ?000? = 1 message ?111? = 8 messages. rx_threshold_val[2:0] messages 000 1 001 2 010 3 011 4 100 5 101 6 110 7 111 8 rx_timeout_val[1:0] these bits specify a variable delay, relative to a read from the receive message fifo, in steps of 125 us, before an interrupt is generated, if the receive fifo level is greater than 0. the objective is to stop stale messages collecting in the rxfifo. rx_timeout_val[1:0] nominal delay in frames minimum delay from message reception maximum delay from message reception minimum delay from fifo read maximum delay from fifo read 00 1 152 s 222 s 125 s 250 s 01 2 277 s 347 s 250 s 375 s 10 3 402 s 472 s 375 s 500 s 11 4 527 s 597 s 500 s 625 s
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 204 document id: pmc-2010883, issue 2 register 0afh: pilc interrupt reason register bit type function default bit 15:7 r unused 0 bit 6 r rx_timeouti 0 bit 5 r rx_thrshldi 0 bit 4 r rx_ovflwi 0 bit 3 r rx_link_chgi 0 bit 2:1 r opage_chgi[1:0] 00 bit 0 r ouser0_chgi 0 this register contains the status of events that may be enabled to generate interrupts.. all bits in this register are cleared on read. ouser0_chgi a logic one in this bit indicates that the last received value of the ouser[0] header bit has changed from a ?0? to a ?1? from the previously received values. this bit is cleared on a read. opage_chgi[1:0] a logic one in these bits indicates that the last received value of the corresponding opage[1:0] header bits has changed from the previously received values. these bits are cleared on read. rx_link_chgi a logic one in this bit indicates that the last received value of the link[1:0] header bits has changed from the previously received values. this bit is cleared on a read. rx_ovflwi a logic one in this bit indicates that a receive fifo overflow has occurred. this bit is cleared on a read. rx_thrshldi a logic one in this bit indicates that the receive fifo threshold has been reached. this bit is cleared on a read. rx_timeouti a logic one in this bit indicates a receive fifo timeout. this bit is cleared on read.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 205 document id: pmc-2010883, issue 2 register 0b0h: tw8e control and status bit type function default bit 15 unused x bit 14 unused x bit 13 unused x bit 12 unused x bit 11 unused x bit 10 unused x bit 9 unused x bit 8 unused x bit 7 unused x bit 6 unused x bit 5 r/w reserved 0 bit 4 r/w fifoerre 0 bit 3 r/w tpins 0 bit 2 r/w reserved 0 bit 1 w center 0 bit 0 r/w dlcv 0 this register provides control and reports the status of the tw8e. dlcv the diagnose line code violation bit (dlcv) controls the insertion of line code violation in the working transmit serial data stream. when this bit is set high, the encoded data is inverted to generate the complementary running disparity. center the fifo centering control bit (center) controls the separation of the fifo read and write pointers. center is a write only bit. when a logic high is written to center, and the current fifo depth is not in the range of 3, 4 or 5 characters, the fifo depth is forced to be four 8b/10b characters deep, with a momentary data corruption. writing to the center bit when the fifo depth is in the 3, 4 or 5 character range produces no effect. center always returns a logic low when read. this bit must be set once csu lock has been achieved. tpins the test pattern insertion (tpins) controls the insertion of test pattern in the working transmit serial data stream for jitter testing purpose. when this bit is set high, the test pattern stored in the registers (tp[9:0]) is used to replace all the overhead and payload bytes of the transmit data stream. when tpins is set low, no test pattern is inserted.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 206 document id: pmc-2010883, issue 2 fifoerre the fifo overrun/underrun error interrupt enable bit (fifoerre) enables fifo overrun/underrun interrupts. an interrupt is generated on a fifo error event if the fifoerre is set to logic one. no interrupt is generated if fifoerre if is set to logic zero. reserved these bits must be set low for correct operation of the sbslite.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 207 document id: pmc-2010883, issue 2 register 0b1h: tw8e interrupt status bit type function default bit 15 unused x bit 14 unused x bit 13 unused x bit 12 unused x bit 11 unused x bit 10 unused x bit 9 unused x bit 8 unused x bit 7 unused x bit 6 unused x bit 5 unused x bit 4 r fifoerri 0 bit 3 unused x bit 2 unused x bit 1 unused x bit 0 unused x this register reports interrupt status due the detection of fifo error. fifoerri the fifo overrun/underrun error interrupt indication bit (fifoerri) reports a fifo overrun/underrun error event. fifo overrun/underrun errors occur when fifo logic detects fifo read and write pointers in close proximity to each other. fifoerri is set to logic one on a fifo overrun/underrun error. fifoerri is set to logic zero when this register is read.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 208 document id: pmc-2010883, issue 2 register 0b2h: tw8e timeslot configuration #1 bit type function default bit 15 r/w tmode8[1] 0 bit 14 r/w tmode8[0] 0 bit 13 r/w tmode7[1] 0 bit 12 r/w tmode7[0] 0 bit 11 r/w tmode6[1] 0 bit 10 r/w tmode6[0] 0 bit 9 r/w tmode5[1] 0 bit 8 r/w tmode5[0] 0 bit 7 r/w tmode4[1] 0 bit 6 r/w tmode4[0] 0 bit 5 r/w tmode3[1] 0 bit 4 r/w tmode3[0] 0 bit 3 r/w tmode2[1] 0 bit 2 r/w tmode2[0] 0 bit 1 r/w tmode1[1] 0 bit 0 r/w tmode1[0] 0 this register configures the path termination mode of timeslots 1 to 8 of the tw8e. tmode1[1:0]-tmode8[1:0]: the timeslot path termination mode select register bits (tmode1[1:0]-tmode8[1:0]) configures the mode settings for timeslots 1 to 8 of the tw8e. timeslots are numbered in order of transmission on the working transmit serial data stream. timeslot #1 is the first byte transmitted and timeslot #12 is the last byte transmitted. the setting stored in tmodex[1:0] (x can be 1-8) determines which set of telecombus control signals are to be encoded in 8b/10b characters. tmodex[1] tmodex[0] functional description 00 reserved 0 1 hpt level. this mode must be used when in telecombus mode where valid v1/v2 pointers must be preserved. 1 0 lpt level. this mode must be used for sbi336 mode and in telecombus mode with a valid v5 signal but without valid v1/v2 pointers. 11 reserved
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 209 document id: pmc-2010883, issue 2 register 0b3h: tw8e timeslot configuration #2 bit type function default bit 15 unused x bit 14 unused x bit 13 unused x bit 12 unused x bit 11 unused x bit 10 unused x bit 9 unused x bit 8 unused x bit 7 r/w tmode12[1] 0 bit 6 r/w tmode12[0] 0 bit 5 r/w tmode11[1] 0 bit 4 r/w tmode11[0] 0 bit 3 r/w tmode10[1] 0 bit 2 r/w tmode10[0] 0 bit 1 r/w tmode9[1] 0 bit 0 r/w tmode9[0] 0 this register configures the path termination mode of timeslots 9 to 12 of the tw8e. tmode9[1:0]-tmode12[1:0] the timeslot path termination mode select register bits (tmode9[1:0]-tmode12[1:0]) configures the mode settings for timeslots 9 to 12 of the tw8e. timeslots are numbered in order of transmission on the working transmit serial data stream. timeslot #1 is the first byte transmitted and timeslot #12 is the last byte transmitted. the setting stored in tmodex[1:0] (x can be 9-12) determines which set of telecombus control signals are to be encoded in 8b/10b characters. tmodex[1] tmodex[0] functional description 00 reserved 0 1 hpt level. this mode must be used when in telecombus mode where valid v1/v2 pointers must be preserved. 1 0 lpt level. this mode must be used for sbi336 mode and in telecombus mode with a valid v5 signal but without valid v1/v2 pointers. 11 reserved
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 210 document id: pmc-2010883, issue 2 register 0b4h: tw8e test pattern bit type function default bit 15 unused x bit 14 unused x bit 13 unused x bit 12 unused x bit 11 unused x bit 10 unused x bit 9 r/w tp[9] 1 bit 8 r/w tp[8] 0 bit 7 r/w tp[7] 1 bit 6 r/w tp[6] 0 bit 5 r/w tp[5] 1 bit 4 r/w tp[4] 0 bit 3 r/w tp[3] 1 bit 2 r/w tp[2] 0 bit 1 r/w tp[1] 1 bit 0 r/w tp[0] 0 this register contains the test pattern to be inserted into the working transmit serial data stream. tp[9:0] the test pattern registers (tp[9:0]) contains the test pattern that is used to insert into the working transmit serial data stream for jitter test purpose. when the tpins bit is set high, the test pattern stored in tp[9:0] is used to replace all the overhead and payload bytes of the transmit data stream.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 211 document id: pmc-2010883, issue 2 register 0b5h: tw8e analog control bit type function default bit 15 unused x bit 14 unused x bit 13 unused x bit 12 unused x bit 11 r/w reserved 0 bit 10 r/w reserved 0 bit 9 r/w reserved 0 bit 8 r/w txlv_enb 0 bit 7 r/w piso_enb 0 bit 6 r/w reserved 0 bit 5 r/w reserved 0 bit 4 r/w reserved 0 bit 3 r/w reserved 0 bit 2 r/w reserved 1 bit 1 r/w reserved 1 bit 0 r/w arstb 1 this registers controls the analog blocks. arstb setting this bit low will reset the twps and twlv blocks. piso_enb setting this bit high will disable the twps circuitry. txlv_enb setting this bit high will disable the twlv circuitry. reserved the reserved bits should not be modified.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 212 document id: pmc-2010883, issue 2 register 0b8h: tp8e control and status bit type function default bit 15 unused x bit 14 unused x bit 13 unused x bit 12 unused x bit 11 unused x bit 10 unused x bit 9 unused x bit 8 unused x bit 7 unused x bit 6 unused x bit 5 r/w reserved 0 bit 4 r/w fifoerre 0 bit 3 r/w tpins 0 bit 2 r/w reserved 0 bit 1 w center 0 bit 0 r/w dlcv 0 this register provides control and reports the status of the tp8e. dlcv the diagnose line code violation bit (dlcv) controls the insertion of line code violation in the protection transmit serial data stream. when this bit is set high, the encoded data is inverted to generate the complementary running disparity. center the fifo centering control bit (center) controls the separation of the fifo read and write pointers. center is a write only bit. when a logic high is written to center, and the current fifo depth is not in the range of 3, 4 or 5 characters, the fifo depth is forced to be four 8b/10b characters deep, with a momentary data corruption. writing to the center bit when the fifo depth is in the 3, 4 or 5 character range produces no effect. center always returns a logic low when read. this bit must be set once csu lock has been achieved. tpins the test pattern insertion (tpins) controls the insertion of test pattern in the protection transmit serial data stream for jitter testing purpose. when this bit is set high, the test pattern stored in the registers (tp[9:0]) is used to replace all the overhead and payload bytes of the transmit data stream. when tpins is set low, no test pattern is inserted.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 213 document id: pmc-2010883, issue 2 fifoerre the fifo overrun/underrun error interrupt enable bit (fifoerre) enables fifo overrun/underrun interrupts. an interrupt is generated on a fifo error event if the fifoerre is set to logic one. no interrupt is generated if fifoerre if is set to logic zero. reserved these bits must be set low for correct operation of the sbslite.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 214 document id: pmc-2010883, issue 2 register 0b9h: tp8e interrupt status bit type function default bit 15 unused x bit 14 unused x bit 13 unused x bit 12 unused x bit 11 unused x bit 10 unused x bit 9 unused x bit 8 unused x bit 7 unused x bit 6 unused x bit 5 unused x bit 4 r fifoerri 0 bit 3 unused x bit 2 unused x bit 1 unused x bit 0 unused x this register reports interrupt status due the detection of fifo error. fifoerri the fifo overrun/underrun error interrupt indication bit (fifoerri) reports a fifo overrun/underrun error event. fifo overrun/underrun errors occur when fifo logic detects fifo read and write pointers in close proximity to each other. fifoerri is set to logic one on a fifo overrun/underrun error. fifoerri is set to logic zero when this register is read.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 215 document id: pmc-2010883, issue 2 register 0bah: tp8e timeslot configuration #1 bit type function default bit 15 r/w tmode8[1] 0 bit 14 r/w tmode8[0] 0 bit 13 r/w tmode7[1] 0 bit 12 r/w tmode7[0] 0 bit 11 r/w tmode6[1] 0 bit 10 r/w tmode6[0] 0 bit 9 r/w tmode5[1] 0 bit 8 r/w tmode5[0] 0 bit 7 r/w tmode4[1] 0 bit 6 r/w tmode4[0] 0 bit 5 r/w tmode3[1] 0 bit 4 r/w tmode3[0] 0 bit 3 r/w tmode2[1] 0 bit 2 r/w tmode2[0] 0 bit 1 r/w tmode1[1] 0 bit 0 r/w tmode1[0] 0 this register configures the path termination mode of timeslots 1 to 8 of the tp8e. tmode1[1:0]-tmode8[1:0] the timeslot path termination mode select register bits (tmode1[1:0]-tmode8[1:0]) configures the mode settings for timeslots 1 to 8 of the tp8e. timeslots are numbered in order of transmission on the protection transmit serial data stream. timeslot #1 is the first byte transmitted and timeslot #12 is the last byte transmitted. the setting stored in tmodex[1:0] (x can be 1-8) determines which set of telecombus control signals are to be encoded in 8b/10b characters. tmodex[1] tmodex[0] functional description 00 reserved 0 1 hpt level. this mode must be used when in telecombus mode where valid v1/v2 pointers must be preserved. 1 0 lpt level. this mode must be used for sbi336 mode and in telecombus mode with a valid v5 signal but without valid v1/v2 pointers. 11 reserved
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 216 document id: pmc-2010883, issue 2 register 0bbh: tp8e timeslot configuration #2 bit type function default bit 15 unused x bit 14 unused x bit 13 unused x bit 12 unused x bit 11 unused x bit 10 unused x bit 9 unused x bit 8 unused x bit 7 r/w tmode12[1] 0 bit 6 r/w tmode12[0] 0 bit 5 r/w tmode11[1] 0 bit 4 r/w tmode11[0] 0 bit 3 r/w tmode10[1] 0 bit 2 r/w tmode10[0] 0 bit 1 r/w tmode9[1] 0 bit 0 r/w tmode9[0] 0 this register configures the path termination mode of timeslots 9 to 12 of the tp8e. tmode9[1:0]-tmode12[1:0] the timeslot path termination mode select register bits (tmode9[1:0]-tmode12[1:0]) configures the mode settings for timeslots 9 to 12 of the tw8e. timeslots are numbered in order of transmission on the working protection serial data stream. timeslot #1 is the first byte transmitted and timeslot #12 is the last byte transmitted. the setting stored in tmodex[1:0] (x can be 9-12) determines which set of telecombus control signals are to be encoded in 8b/10b characters. tmodex[1] tmodex[0] functional description 00 reserved 0 1 hpt level. this mode must be used when in telecombus mode where valid v1/v2 pointers must be preserved. 1 0 lpt level. this mode must be used for sbi336 mode and in telecombus mode with a valid v5 signal but without valid v1/v2 pointers. 11 reserved
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 217 document id: pmc-2010883, issue 2 register 0bch: tp8e test pattern bit type function default bit 15 unused x bit 14 unused x bit 13 unused x bit 12 unused x bit 11 unused x bit 10 unused x bit 9 r/w tp[9] 1 bit 8 r/w tp[8] 0 bit 7 r/w tp[7] 1 bit 6 r/w tp[6] 0 bit 5 r/w tp[5] 1 bit 4 r/w tp[4] 0 bit 3 r/w tp[3] 1 bit 2 r/w tp[2] 0 bit 1 r/w tp[1] 1 bit 0 r/w tp[0] 0 this register contains the test pattern to be inserted into the protection transmit serial data stream. tp[9:0] the test pattern registers (tp[9:0]) contains the test pattern that is used to insert into the protection transmit serial data stream for jitter test purpose. when the tpins bit is set high, the test pattern stored in tp[9:0] is used to replace all the overhead and payload bytes of the transmit data stream.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 218 document id: pmc-2010883, issue 2 register 0bdh: tp8e analog control bit type function default bit 15 unused x bit 14 unused x bit 13 unused x bit 12 unused x bit 11 r/w reserved 0 bit 10 r/w reserved 0 bit 9 r/w reserved 0 bit 8 r/w txlv_enb 0 bit 7 r/w piso_enb 0 bit 6 r/w reserved 0 bit 5 r/w reserved 0 bit 4 r/w reserved 0 bit 3 r/w reserved 0 bit 2 r/w reserved 1 bit 1 r/w reserved 1 bit 0 r/w arstb 1 this register controls the analog blocks. arstb setting this bit low will reset the tpps and tplv blocks. piso_enb setting this bit high will disable the tpps circuitry. txlv_enb setting this bit high will disable the tplv circuitry. reserved the reserved bits should not be modified.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 219 document id: pmc-2010883, issue 2 register 0c0h: rw8d control and status bit type function default bit 15 r/w reserved 0 bit 14 r/w reserved 0 bit 13 unused x bit 12 unused x bit 11 unused x bit 10 unused x bit 9 r/w reserved 0 bit 8 r/w ofaais 0 bit 7 r/w fuoe 0 bit 6 r/w lcve 0 bit 5 r/w ofae 0 bit 4 r/w ocae 0 bit 3 r ofav x bit 2 r ocav x bit 1 r/w fofa 0 bit 0 r/w foca 0 this register provides control and reports the status of the rw8d. foca the force out-of-character-alignment bit (foca) controls the operation of the character alignment block. a transition from logic zero to logic one in this bit forces the character alignment block to the out-of-character-alignment state where it will search for the transport frame alignment character (k28.5). this bit must be manually set to logic zero before it can be used again. fofa the force out-of-frame-alignment bit (fofa) controls the operation of the frame alignment block. a transition from logic zero to logic one in this bit forces the frame alignment block to the out-of-frame-alignment state where it will search for the transport frame alignment character (k28.5). this bit must be manually set to logic zero before it can be used again. ocav the out-of-character-alignment status bit (ocav) reports the state of the character alignment block. ocav is set high when the character alignment block is in the out-of-character- alignment state. ocav is set low when the character alignment block is in the in-character- alignment state.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 220 document id: pmc-2010883, issue 2 ofav the out-of-frame-alignment status bit (ofav) reports the state of the frame alignment block. ofav is set high when the frame alignment block is in the out-of-frame-alignment state. ofav is set low when the frame alignment block is in the in-frame-alignment state. ocae the out-of-character-alignment interrupt enable bit (ocae) controls the change of character alignment state interrupts. interrupts may be generated when the character alignment block changes state to the out-of-character-alignment state or to the in-character-alignment state. when ocae is set high, an interrupt is generated when a change of state occurs. interrupts due to changes of character alignment state are masked when ocae is set low. ofae the out-of-frame-alignment interrupt enable bit (ofae) controls the change of frame alignment state interrupts. interrupts may be generated when the frame alignment block changes state to the out-of-frame-alignment state or to the in-frame-alignment state. when ofae is set high, an interrupt is generated when a change of state occurs. interrupts due to changes of frame alignment state are masked when ofae is set low. lcve the line code violation interrupt enable bit (lcve) controls the line code violation event interrupts. interrupts may be generated when a line code violation is detected. when lcve is set high, an interrupt is generated when an lcv is detected. interrupts due of lcvs are masked when lcve is set low. fuoe the fifo underrun/overrun status interrupt enable (fuoe) controls the underrun/overrun event interrupts. interrupts may be generated when the underrun/overrun event is detected. when fuoe is set high, an interrupt is generated when a fifo underrun or overrun condition is detected. interrupts due to fifo underrun of overrun conditions are masked when fuoe is set low. ofaais the out of frame alignment alarm indication signal (ofaais) is set to logic one to force high-order ais signals in the data-stream, when the rw8d is in the out-of-frame-alignment state. no insertion into the data stream is done when ofaais is set to logic zero. reserved these bits must be set low for correct operation of the sbslite.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 221 document id: pmc-2010883, issue 2 register 0c1h: rw8d interrupt status bit type function default bit 15 unused x bit 14 unused x bit 13 unused x bit 12 unused x bit 11 unused x bit 10 unused x bit 9 unused x bit 8 unused x bit 7 r fuoi x bit 6 r lcvi x bit 5 r ofai x bit 4 r ocai x bit 3 unused x bit 2 unused x bit 1 unused x bit 0 unused x this register reports interrupt status due to change of character alignment, change of frame alignment, detection of line code violations, and fifo overrun or underrun events in the rw8d. ocai the out-of-character-alignment interrupt status bit (ocai) reports and acknowledges change of character alignment state interrupts. interrupts are generated when the character alignment block changes state to the out-of-character-alignment state or to the in-character-alignment state. ocai is set high when change of state occurs. when the interrupt is masked by the ocae bit the ocai remains valid and may be polled to detect change of frame alignment events. ofai the out-of-frame-alignment interrupt status bit (ofai) reports and acknowledges change of frame alignment state interrupts. interrupts are generated when the frame alignment block changes state to the out-of-frame-alignment state or to the in-frame-alignment state. ofai is set high when change of state. when the interrupt is masked by the ofae bit the ofai remains valid and may be polled to detect change of frame alignment events.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 222 document id: pmc-2010883, issue 2 lcvi the line code violation event interrupt status bit (lcvi) reports and acknowledges line code violation interrupts. interrupts are generated when the character alignment block detects a line code violation in the incoming data stream. lcvi is set high when a line code violation event is detected. when the interrupt is masked by the lcve bit the lcvi remains valid and may be polled to detect change of frame alignment events. fuoi the fifo underrun/overrun event interrupt status bit (fuoi) reports and acknowledges the fifo underrun/overrun interrupts. interrupts are generated when the character alignment block detects a that the read and write pointers are within one byte of each other. fuoi is set high when this event is detected. when the interrupt is masked by the fuoe bit the fuoi remains valid and may be polled to detect underrun/overrun events.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 223 document id: pmc-2010883, issue 2 register 0c2h: rw8d lcv count bit type function default bit 15 r lcv[15] x bit 14 r lcv[14] x bit 13 r lcv[13] x bit 12 r lcv[12] x bit 11 r lcv[11] x bit 10 r lcv[10] x bit 9 r lcv[9] x bit 8 r lcv[8] x bit 7 r lcv[7] x bit 6 r lcv[6] x bit 5 r lcv[5] x bit 4 r lcv[4] x bit 3 r lcv[3] x bit 2 r lcv[2] x bit 1 r lcv[1] x bit 0 r lcv[0] x this register reports the number of line code violations in the previous accumulation period in the rw8d. lcv[15:0] the lcv[15:0] bits reports the number of line code violations that have been detected since the last time the lcv registers were polled. the lcv register is polled by writing this register or by writing to the sbslite master clock monitor, accumulation trigger register. the write access transfers the internally accumulated error count to the lcv register within 10 s and simultaneously resets the internal counter to begin a new cycle of error accumulation.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 224 document id: pmc-2010883, issue 2 register 0c3h: rw8d analog control bit type function default bit 15 r/w reserved 1 bit 14 r/w reserved 1 bit 13 r/w dru_enb 0 bit 12 r/w rx_enb 0 bit 11 r/w reserved 0 bit 10 r/w arstb 1 bit 9 r/w reserved 0 bit 8 r/w reserved 0 bit 7 r/w reserved 0 bit 6 r/w reserved 0 bit 5 r/w reserved 0 bit 4 r/w reserved 0 bit 3 r/w reserved 0 bit 2 r/w reserved 0 bit 1 r/w reserved 0 bit 0 unused x this register controls the wdru and rwlv analog blocks. please refer to their respective documents for a description of the functionality of these bits. note: this register must be set to cc34h for proper operation of the rw8d blocks. for disabling this receiver, this register should be set to f834h dru_enb setting this bit high will disable the wdru. rx_enb setting this bit high will disable the rwlv. arstb setting this bit low will reset the wdru and rwlv blocks. reserved the reserved bits should be set as described above.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 225 document id: pmc-2010883, issue 2 register 0c8h: rp8d control and status bit type function default bit 15 r/w reserved 0 bit 14 r/w reserved 0 bit 13 unused x bit 12 unused x bit 11 unused x bit 10 unused x bit 9 r/w reserved 0 bit 8 r/w ofaais 0 bit 7 r/w fuoe 0 bit 6 r/w lcve 0 bit 5 r/w ofae 0 bit 4 r/w ocae 0 bit 3 r ofav x bit 2 r ocav x bit 1 r/w fofa 0 bit 0 r/w foca 0 this register provides control and reports the status of the rp8d. foca the force out-of-character-alignment bit (foca) controls the operation of the character alignment block. a transition from logic zero to logic one in this bit forces the character alignment block to the out-of-character-alignment state where it will search for the transport frame alignment character (k28.5). this bit must be manually set to logic zero before it can be used again. fofa the force out-of-frame-alignment bit (fofa) controls the operation of the frame alignment block. a transition from logic zero to logic one in this bit forces the frame alignment block to the out-of-frame-alignment state where it will search for the transport frame alignment character (k28.5). this bit must be manually set to logic zero before it can be used again. ocav the out-of-character-alignment status bit (ocav) reports the state of the character alignment block. ocav is set high when the character alignment block is in the out-of-character- alignment state. ocav is set low when the character alignment block is in the in-character- alignment state.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 226 document id: pmc-2010883, issue 2 ofav the out-of-frame-alignment status bit (ofav) reports the state of the frame alignment block. ofav is set high when the frame alignment block is in the out-of-frame-alignment state. ofav is set low when the frame alignment block is in the in-frame-alignment state. ocae the out-of-character-alignment interrupt enable bit (ocae) controls the change of character alignment state interrupts. interrupts may be generated when the character alignment block changes state to the out-of-character-alignment state or to the in-character-alignment state. when ocae is set high, an interrupt is generated when a change of state occurs. interrupts due to changes of character alignment state are masked when ocae is set low. ofae the out-of-frame-alignment interrupt enable bit (ofae) controls the change of frame alignment state interrupts. interrupts may be generated when the frame alignment block changes state to the out-of-frame-alignment state or to the in-frame-alignment state. when ofae is set high, an interrupt is generated when a change of state occurs. interrupts due to changes of frame alignment state are masked when ofae is set low. lcve the line code violation interrupt enable bit (lcve) controls the line code violation event interrupts. interrupts may be generated when a line code violation is detected. when lcve is set high, an interrupt is generated when an lcv is detected. interrupts due of lcvs are masked when lcve is set low. fuoe the fifo underrun/overrun status interrupt enable (fuoe) controls the underrun/overrun event interrupts. interrupts may be generated when the underrun/overrun event is detected. when fuoe is set high, an interrupt is generated when a fifo underrun or overrun condition is detected. interrupts due to fifo underrun of overrun conditions are masked when fuoe is set low. ofaais the out of frame alignment alarm indication signal (ofaais) is set to logic one to force high-order ais signals in the data-stream, when the rp8d is in the out-of-frame-alignment state. no insertion into the data stream is done when ofaais is set to logic zero. reserved these bits must be set low for correct operation of the sbslite.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 227 document id: pmc-2010883, issue 2 register 0c9h: rp8d interrupt status bit type function default bit 15 unused x bit 14 unused x bit 13 unused x bit 12 unused x bit 11 unused x bit 10 unused x bit 9 unused x bit 8 unused x bit 7 r fuoi x bit 6 r lcvi x bit 5 r ofai x bit 4 r ocai x bit 3 unused x bit 2 unused x bit 1 unused x bit 0 unused x this register reports interrupt status due to change of character alignment, change of frame alignment, detection of line code violations, and fifo overrun or underrun events in the rp8d. ocai the out-of-character-alignment interrupt status bit (ocai) reports and acknowledges change of character alignment state interrupts. interrupts are generated when the character alignment block changes state to the out-of-character-alignment state or to the in-character-alignment state. ocai is set high when change of state occurs. when the interrupt is masked by the ocae bit the ocai remains valid and may be polled to detect change of frame alignment events. ofai the out-of-frame-alignment interrupt status bit (ofai) reports and acknowledges change of frame alignment state interrupts. interrupts are generated when the frame alignment block changes state to the out-of-frame-alignment state or to the in-frame-alignment state. ofai is set high when change of state. when the interrupt is masked by the ofae bit the ofai remains valid and may be polled to detect change of frame alignment events.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 228 document id: pmc-2010883, issue 2 lcvi the line code violation event interrupt status bit (lcvi) reports and acknowledges line code violation interrupts. interrupts are generated when the character alignment block detects a line code violation in the incoming data stream. lcvi is set high when a line code violation event is detected. when the interrupt is masked by the lcve bit the lcvi remains valid and may be polled to detect change of frame alignment events. fuoi the fifo underrun/overrun event interrupt status bit (fuoi) reports and acknowledges the fifo underrun/overrun interrupts. interrupts are generated when the character alignment block detects a that the read and write pointers are within one byte of each other. fuoi is set high when this event is detected. when the interrupt is masked by the fuoe bit the fuoi remains valid and may be polled to detect underrun/overrun events.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 229 document id: pmc-2010883, issue 2 register 0cah: rp8d lcv count bit type function default bit 15 r lcv[15] x bit 14 r lcv[14] x bit 13 r lcv[13] x bit 12 r lcv[12] x bit 11 r lcv[11] x bit 10 r lcv[10] x bit 9 r lcv[9] x bit 8 r lcv[8] x bit 7 r lcv[7] x bit 6 r lcv[6] x bit 5 r lcv[5] x bit 4 r lcv[4] x bit 3 r lcv[3] x bit 2 r lcv[2] x bit 1 r lcv[1] x bit 0 r lcv[0] x this register reports the number of line code violations in the previous accumulation period in the rp8d. lcv[15:0] the lcv[15:0] bits reports the number of line code violations that have been detected since the last time the lcv registers were polled. the lcv register is polled by writing this register or by writing to the sbslite master clock monitor, accumulation trigger register. the write access transfers the internally accumulated error count to the lcv register within 10 s and simultaneously resets the internal counter to begin a new cycle of error accumulation.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 230 document id: pmc-2010883, issue 2 register 0cbh: rp8d analog control bit type function default bit 15 r/w reserved 1 bit 14 r/w reserved 1 bit 13 r/w dru_enb 0 bit 12 r/w rx_enb 0 bit 11 r/w reserved 0 bit 10 r/w reserved 1 bit 9 r/w reserved 0 bit 8 r/w reserved 0 bit 7 r/w reserved 0 bit 6 r/w reserved 0 bit 5 r/w reserved 0 bit 4 r/w reserved 0 bit 3 r/w reserved 0 bit 2 r/w reserved 0 bit 1 r/w reserved 0 bit 0 unused x this register controls the pdru and rplv analog blocks. please refer to their respective documents for a description of the functionality of these bits. note: this register must be set to cc34h for proper operation of the rp8d block. for disabling this receiver, this register should be set to f834h dru_enb setting this bit high will disable the pdru. rx_enb setting this bit high will disable the rplv. arstb setting this bit low will reset the pdru and rplv blocks. reserved the reserved bits should be set as described above.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 231 document id: pmc-2010883, issue 2 register 0d0h: cstr control bit type function default bit 15 r/w reserved 0 bit 14 r/w reserved 0 bit 13 r/w reserved 0 bit 12 r/w reserved 0 bit 11 r/w reserved 0 bit 10 r/w reserved 1 bit 9 r/w reserved 0 bit 8 r/w reserved 0 bit 7 r/w reserved 0 bit 6 r/w reserved 0 bit 5 r/w reserved 0 bit 4 r/w csu_enb 0 bit 3 r/w csu_rstb 1 bit 2 unused x bit 1 unused x bit 0 r/w reserved 1 reserved the reserved bits must be set to their default values for proper operation. csu_rstb the csu_rstb signal is a software reset signal that forces the csu1250 into a reset. in order to properly reset the csu, csu_rstb should be held low for at least 1 ms. csu_enb the active low csu enable control signal (csu_enb) bit can be used to force the csu1250 into low power configuration if it is set to logic one. for normal operation, it is set to logic zero.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 232 document id: pmc-2010883, issue 2 register 0d1h: cstr configuration and status bit type function default bit 15 unused x bit 14 unused x bit 13 unused x bit 12 unused x bit 11 unused x bit 10 unused x bit 9 unused x bit 8 unused x bit 7 unused x bit 6 unused x bit 5 unused x bit 4 unused x bit 3 unused x bit 2 unused x bit 1 r lockv x bit 0 r/w locke 0 lockv the csu lock status bit (lockv) indicates whether the clock synthesis unit has successfully locked with the reference clock. lockv is set low when the csu has not successfully locked with the reference sysclk. lockv is set high when the csu has locked with the reference sysclk. locke the csu lock interrupt enable bit (locke) controls the assertion of csu lock state interrupts by the cstr. when locke is high, an interrupt is generated when the csu lock state changes. interrupts due to csu lock state are masked when locke is set low.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 233 document id: pmc-2010883, issue 2 register 0d2h: cstr interrupt status bit type function default bit 15 unused x bit 14 unused x bit 13 unused x bit 12 unused x bit 11 unused x bit 10 unused x bit 9 unused x bit 8 unused x bit 7 unused x bit 6 unused x bit 5 unused x bit 4 unused x bit 3 unused x bit 2 unused x bit 1 unused x bit 0 r locki 0 locki the csu lock interrupt status bit (locki) responds to changes in the csu lock state. interrupts are to be generated as the csu achieves lock with the reference clock, or loses its lock to the reference clock. as a result, the locki register bit is set high when any of these changes occurs. locki register bit will be cleared when it is read. when locke is set high, locki is used to produce the interrupt output that is reflected in the sbslite master interrupt source register. whether or not the interrupt is masked by the locke bit, the locki bit itself remains valid and may be polled to detect change of lock status events.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 234 document id: pmc-2010883, issue 2 register 0e0h: refdll configuration bit type function default bit 15 unused x bit 14 unused x bit 13 unused x bit 12 unused x bit 11 unused x bit 10 unused x bit 9 unused x bit 8 unused x bit 7 unused x bit 6 unused x bit 5 r/w reserved 0 bit 4 r/w reserved 0 bit 3 unused x bit 2 r/w errore x bit 1 r/w reserved 0 bit 0 r/w lock 0 bit 0 r/w lock 0 the refdll configuration register controls the basic operation of the dll connected to the srefclk input. this dll is only used when srefclk is operating at 77.76 mhz. lock the lock register is used to force the dll to ignore phase offsets indicated by the phase detector after phase lock has been achieved. when lock is set to logic zero, the dll will track phase offsets measured by the phase detector between the srefclk and the dll?s reference clock. when lock is set to logic one, the dll will not change the tap after the phase detector indicates of zero phase offset between the srefclk and the reference clock for the first time. errore the error interrupt enable (errore) bit enables the error indication interrupt. when errore is set high, an interrupt is generated upon assertion event of the err output and error register. when errore is set low, changes in the error and err status do not generate an interrupt. reserved these bits must be set to set low for correct operation of the sbslite.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 235 document id: pmc-2010883, issue 2 register 0e3h: refdll control status bit type function default bit 15 unused x bit 14 unused x bit 13 unused x bit 12 unused x bit 11 unused x bit 10 unused x bit 9 unused x bit 8 unused x bit 7 r srefclki x bit 6 r dll_refclki x bit 5 r errori x bit 4 r changei x bit 3 unused x bit 2 r error x bit 1 r change 0 bit 0 r run 0 the refdll control status register provides information on the operation of the dll connected to the srefclk input. this dll is only used when srefclk is operating at 77.76 mhz. run the dll lock status register bit (run) indicates the dll found a delay line tap in which the phase difference between the rising edge of the reference clock and the rising edge of sreflck is zero. after system reset, run is logic zero until the phase detector indicates an initial lock condition. when the phase detector indicates lock, run is set to logic one. the run register bit is cleared only by a system reset (rstb) or a software reset (in the sbslite master reset register). run is forced high when the override register is set high or when the vern_en register is set high. change the delay line tap change register bit (change) indicates the dll has moved to a new delay line tap. change is set high for eight srefclk cycles when the dll moves to a new delay line tap.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 236 document id: pmc-2010883, issue 2 error the delay line error register bit (error) indicates the dll has run out of dynamic range. when the dll attempts to move beyond the end of the delay line, error is set high. when error is high, the dll cannot generate a output clock phase that causes the rising edge of the reference clock to be aligned to the rising edge of srefclk. error is set low, when the dll captures lock again. error is forced low when the override register is set high or when the vern_en register is set high. changei the delay line tap change event register bit (changei) indicates the change register bit has changed value. when the change register changes from a logic zero to a logic one, the changei register bit is set to logic one. the changei register bit is cleared immediately after it is read, thus acknowledging the event has been recorded. errori the delay line error event register bit (errori) indicates the error register bit has gone high. when the error register changes from a logic zero to a logic one, the errori register bit is set to logic one. if the errore interrupt enable is high, the int output is also asserted when errori asserts. the errori register bit is cleared immediately after it is read, thus acknowledging the event has been recorded. dll_refclki the reference clock event register bit dll_refclki provides a method to monitor activity on the reference clock. when the dll reference clock changes from a logic zero to a logic one, the dll_refclki register bit is set to logic one. the dll_refclki register bit is cleared immediately after it is read, thus acknowledging the event has been recorded. srefclki the system clock event register bit srefclki provides a method to monitor activity on the system clock. when the srefclk primary input changes from a logic zero to a logic one, the srefclki register bit is set to logic one. the srefclki register bit is cleared immediately after it is read thus acknowledging the event has been recorded.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 237 document id: pmc-2010883, issue 2 register 0e8h: sysdll configuration bit type function default bit 15 unused x bit 14 unused x bit 13 unused x bit 12 unused x bit 11 unused x bit 10 unused x bit 9 unused x bit 8 unused x bit 7 unused x bit 6 unused x bit 5 r/w reserved 0 bit 4 r/w reserved 0 bit 3 unused x bit 2 r/w errore x bit 1 r/w reserved 0 bit 0 r/w lock 0 the sysdll configuration register controls the basic operation of the dll connected to the sysclk input. lock the lock register is used to force the dll to ignore phase offsets indicated by the phase detector after phase lock has been achieved. when lock is set to logic zero, the dll will track phase offsets measured by the phase detector between the sysclk input and the dll?s reference clock. when lock is set to logic one, the dll will not change the tap after the phase detector indicates of zero phase offset between sysclk and the reference clock for the first time. errore the error interrupt enable (errore) bit enables the error indication interrupt. when errore is set high, an interrupt is generated upon assertion event of the err output and error register. when errore is set low, changes in the error and err status do not generate an interrupt. reserved these bits must be set to set low for correct operation of the sbslite.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 238 document id: pmc-2010883, issue 2 register 0ebh: sysdll control status bit type function default bit 15 unused x bit 14 unused x bit 13 unused x bit 12 unused x bit 11 unused x bit 10 unused x bit 9 unused x bit 8 unused x bit 7 r sysclki x bit 6 r dll_refclki x bit 5 r errori x bit 4 r changei x bit 3 unused x bit 2 r error x bit 1 r change 0 bit 0 r run 0 the sysdll control status register provides information on the operation of the dll connected to the sysclk input. run the dll lock status register bit (run) indicates the dll found a delay line tap in which the phase difference between the rising edge of the reference clock and the rising edge of sysclk is zero. after system reset, run is logic zero until the phase detector indicates an initial lock condition. when the phase detector indicates lock, run is set to logic one. the run register bit is cleared only by a system reset (rstb) or a software reset (in the sbslite master reset register). run is forced high when the override register is set high or when the vern_en register is set high. change the delay line tap change register bit (change) indicates the dll has moved to a new delay line tap. change is set high for eight sysclk cycles when the dll moves to a new delay line tap.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 239 document id: pmc-2010883, issue 2 error the delay line error register bit (error) indicates the dll has run out of dynamic range. when the dll attempts to move beyond the end of the delay line, error is set high. when error is high, the dll cannot generate a output clock phase that causes the rising edge of the reference clock to be aligned to the rising edge of sysclk. error is set low, when the dll captures lock again. error is forced low when the override register is set high or when the vern_en register is set high. changei the delay line tap change event register bit (changei) indicates the change register bit has changed value. when the change register changes from a logic zero to a logic one, the changei register bit is set to logic one. the changei register bit is cleared immediately after it is read, thus acknowledging the event has been recorded. errori the delay line error event register bit (errori) indicates the error register bit has gone high. when the error register changes from a logic zero to a logic one, the errori register bit is set to logic one. if the errore interrupt enable is high, the int output is also asserted when errori asserts. the errori register bit is cleared immediately after it is read, thus acknowledging the event has been recorded. dll_refclki the reference clock event register bit dll_refclki provides a method to monitor activity on the reference clock. when the dll reference clock changes from a logic zero to a logic one, the dll_refclki register bit is set to logic one. the dll_refclki register bit is cleared immediately after it is read, thus acknowledging the event has been recorded. sysclki the system clock event register bit sysclki provides a method to monitor activity on the system clock. when the sysclk primary input changes from a logic zero to a logic one, the sysclki register bit is set to logic one. the sysclki register bit is cleared immediately after it is read thus acknowledging the event has been recorded.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 240 document id: pmc-2010883, issue 2 12 test features description the test mode registers, shown in table 24, are used for production and board testing. during production testing, the test mode registers are used to apply test vectors. in this case, the test mode registers (as opposed to the normal mode registers) are selected when a[10] is high. during board testing, the digital output pins and the data bus are held in a high-impedance state by simultaneously asserting (low) the csb, rdb, and wrb inputs. all of the tsbs for the sbslite are placed in test mode 0 so that device inputs may be read and device outputs may be forced through the microprocessor interface. note: the sbslite supports a standard ieee 1149.1 five-signal jtag boundary scan test port that can be used for board testing. all digital device inputs may be read and all digital device outputs may be forced through this jtag test port. table 24 test mode register memory map address register 000h-0ffh normal mode registers 100h master test register 101h - 1ffh reserved for test 12.1 master test and test configuration registers notes on test mode register bits 1. writing values into unused register bits has no effect. however, to ensure software compatibility with future, feature-enhanced versions of the product, unused register bits must be written with logic zero. reading back unused bits can produce either a logic one or a logic zero; hence, unused register bits should be masked off by software when read. 2. writable test mode register bits are not initialized upon reset unless otherwise noted.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 241 document id: pmc-2010883, issue 2 register 100h: master test bit type function default bit 15 unused x bit 14 unused x bit 13 unused x bit 12 unused x bit 11 unused x bit 10 unused x bit 9 unused x bit 8 unused x bit 7 unused x bit 6 r/w reserved x bit 5 r/w pmcatst x bit 4 w pmctst x bit 3 w dbctrl 0 bit 2 r/w iotst 0 bit 1 w hizdata 0 bit 0 r/w hizio 0 this register is used to enable sbslite test features. all bits, except pmctst and pmcatst are reset to zero by a reset of the sbslite using either the rstb input. pmctst is reset when csb is logic one. pmcatst is reset when both csb is high and rstb is low. pmctst and pmcatst can also be reset by writing a logic zero to the corresponding register bit. hizio, hizdata the hizio and hizdata bits control the tri-state modes of the sbslite. while the hizio bit is a logic one, all output pins of the sbslite except the data bus and output tdo are held tri-state. the microprocessor interface is still active. while the hizdata bit is a logic one, the data bus is also held in a high-impedance state which inhibits microprocessor read cycles. the hizdata bit is overridden by the dbctrl bit. iotst the iotst bit is used to allow normal microprocessor access to the test registers and control the test mode in each tsb block in the sbslite for board level testing. when iotst is a logic one, all blocks are held in test mode and the microprocessor may write to a block?s test mode 0 registers to manipulate the outputs of the block and consequently the device outputs.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 242 document id: pmc-2010883, issue 2 dbctrl the dbctrl bit is used to pass control of the data bus drivers to the csb pin. when the dbctrl bit is set to logic one and pmctst is set to logic one, the csb pin controls the output enable for the data bus. while the dbctrl bit is set, holding the csb pin high causes the sbslite to drive the data bus and holding the csb pin low tri-states the data bus. the dbctrl bit overrides the hizdata bit. the dbctrl bit is used to measure the drive capability of the data bus driver pads. pmctst the pmctst bit is used to configure the sbslite for pmc's manufacturing tests. when pmctst is set to logic one, the sbslite microprocessor port becomes the test access port used to run the pmc "canned" manufacturing test vectors. the pmctst bit can be cleared by setting csb to logic one or by writing logic zero to the bit. pmcatst the pmcatst bit is used to configure the analog portion of the sbslite for pmc's manufacturing tests. 12.2 jtag test port the sbslite jtag test access port (tap) allows access to the tap controller and the 4 tap registers: instruction, bypass, device identification and boundary scan. using the tap, device input logic levels can be read, device outputs can be forced, the device can be identified and the device scan path can be bypassed. for more details on the jtag port, please refer to the operations section. table 25 instruction register (length - 3 bits) instructions selected register instruction codes, ir[2:0] extest boundary scan 000 idcode identification 001 sample boundary scan 010 bypass bypass 011 bypass bypass 100 stctest boundary scan 101 bypass bypass 110 bypass bypass 111
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 243 document id: pmc-2010883, issue 2 table 26 identification register length 32 bits version number 0h part number 8611h manufacturer's identification code 0cdh device identification 086110cdh
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 244 document id: pmc-2010883, issue 2 table 27 boundary scan register pin/ enable register bit cell type i.d. bit logic one 291 in_cell l logic one 290 in_cell l logic one 289 in_cell l logic one 288 in_cell l logic one 287 in_cell h logic one 286 in_cell l logic one 285 in_cell l logic one 284 in_cell l logic one 283 in_cell l logic one 282 in_cell h logic one 281 in_cell h logic one 280 in_cell l logic one 279 in_cell l logic one 278 in_cell l logic one 277 in_cell l logic one 276 in_cell h logic one 275 in_cell l ale 274 in_cell l rdb 273 in_cell l wrb 272 in_cell h csb 271 in_cell l rwsel 270 in_cell l rstb 269 in_cell l rc1fp 268 in_cell l nc 267 out_cell h nc 266 out_cell h logic one 265 in_cell l nc 264 out_cell l nc 263 io_cell h nc 262 out_cell h nc 261 out_cell l nc 260 out_cell h nc 259 out_cell - nc 258 out_cell - nc 257 out_cell - nc 256 out_cell - nc 255 out_cell - nc 254 out_cell - nc 253 out_cell -
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 245 document id: pmc-2010883, issue 2 pin/ enable register bit cell type i.d. bit nc 252 out_cell - nc 251 out_cell - oeb_d[15] 250 out_cell - d[15] 249 io_cell - oeb_d[14] 248 out_cell - d[14] 247 io_cell - nc 246 out_cell - nc 245 out_cell - nc 244 out_cell - nc 243 out_cell - nc 242 out_cell - nc 241 out_cell - nc 240 out_cell - nc 239 out_cell - nc 238 out_cell - nc 237 out_cell - nc 236 out_cell - nc 235 out_cell - nc 234 out_cell - nc 233 out_cell - nc 232 out_cell - nc 231 out_cell - user_in 230 in_cell - oeb_d[13] 229 out_cell - d[13] 228 io_cell - oeb_d[12] 227 out_cell - d[12] 226 io_cell - oeb_d[11] 225 out_cell - d[11] 224 io_cell - oeb_d[10] 223 out_cell - d[10] 222 io_cell - oeb_d[9] 221 out_cell - d[9] 220 io_cell - logic 1 219 in_cell - logic 1 218 in_cell - logic 1 217 in_cell - logic 1 216 in_cell - logic 1 215 in_cell - logic 1 214 in_cell - logic 1 213 in_cell - logic 1 212 in_cell -
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 246 document id: pmc-2010883, issue 2 pin/ enable register bit cell type i.d. bit logic 1 211 in_cell - logic 1 210 in_cell - logic 1 209 in_cell - oeb_d[8] 208 out_cell - d[8] 207 io_cell - oeb_d[7] 206 out_cell - d[7] 205 io_cell - logic 1 204 in_cell - logic 1 203 in_cell - logic 1 202 in_cell - logic 1 201 in_cell - logic 1 200 in_cell - logic 1 199 in_cell - logic 1 198 in_cell - oeb_d[6] 197 out_cell - d[6] 196 io_cell - oeb_d[5] 195 out_cell - d[5] 194 io_cell - oeb_d[4] 193 out_cell - d[4] 192 io_cell - logic 1 191 in_cell - logic 1 190 in_cell - logic 1 189 in_cell - logic 1 188 in_cell - logic 1 187 in_cell - oeb_d[3] 186 out_cell - d[3] 185 io_cell - oeb_d[2] 184 out_cell - d[2] 183 io_cell - oeb_d[1] 182 out_cell - d[1] 181 io_cell - oeb_d[0] 180 out_cell - d[0] 179 io_cell - a[8] 178 in_cell - a[7] 177 in_cell - a[6] 176 in_cell - a[5] 175 in_cell - a[4] 174 in_cell - a[3] 173 in_cell - a[2] 172 in_cell - a[1] 171 in_cell -
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 247 document id: pmc-2010883, issue 2 pin/ enable register bit cell type i.d. bit logic 1 170 in_cell - logic 1 169 in_cell - nc 168 out_cell - nc 167 io_cell - a[0] 166 in_cell - oeb_user_out 165 out_cell - user_out 164 out_cell - oeb_just_req 163 out_cell - just_req 162 io_cell - nc 161 out_cell - nc 160 out_cell - nc 159 out_cell - nc 158 out_cell - nc 157 out_cell - nc 156 out_cell - nc 155 out_cell - nc 154 out_cell - nc 153 out_cell - nc 152 out_cell - nc 151 out_cell - nc 150 out_cell - nc 149 out_cell - nc 148 out_cell - nc 147 out_cell - nc 146 out_cell - nc 145 out_cell - nc 144 out_cell - nc 143 out_cell - nc 142 out_cell - nc 141 out_cell - nc 140 out_cell - nc 139 out_cell - nc 138 out_cell - nc 137 out_cell - nc 136 out_cell - nc 135 out_cell - nc 134 out_cell - nc 133 out_cell - nc 132 out_cell - logic 1 131 in_cell - oeb_intb 130 out_cell -
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 248 document id: pmc-2010883, issue 2 pin/ enable register bit cell type i.d. bit intb 129 out_cell - nc 128 out_cell - nc 127 out_cell - nc 126 out_cell - nc 125 out_cell - nc 124 out_cell - nc 123 out_cell - nc 122 out_cell - nc 121 out_cell - nc 120 out_cell - nc 119 out_cell - nc 118 out_cell - nc 117 out_cell - nc 116 out_cell - nc 115 out_cell - nc 114 out_cell - nc 113 out_cell - nc 112 out_cell - nc 111 out_cell - nc 110 out_cell - nc 109 out_cell - nc 108 out_cell - nc 107 out_cell - nc 106 out_cell - nc 105 out_cell - itais 104 in_cell - ipl 103 in_cell - ic1fp 102 in_cell - iv5 101 in_cell - itpl 100 in_cell - idp 99 in_cell - idata[7] 98 in_cell - idata[6] 97 in_cell - idata[5] 96 in_cell - idata[4] 95 in_cell - idata[3] 94 in_cell - idata[2] 93 in_cell - idata[1] 92 in_cell - idata[0] 91 in_cell - nc 90 out_cell - nc 89 out_cell -
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 249 document id: pmc-2010883, issue 2 pin/ enable register bit cell type i.d. bit srefclk 88 in_cell - sysclk 87 in_cell - nc 86 out_cell - nc 85 io_cell - nc 84 out_cell - nc 83 out_cell - logic 1 82 in_cell - ocmp 81 in_cell - icmp 80 in_cell - nc 79 out_cell - nc 78 out_cell - nc 77 out_cell - nc 76 out_cell - logic 1 75 in_cell - logic 1 74 in_cell - logic 1 73 in_cell - logic 1 72 in_cell - logic 1 71 in_cell - logic 1 70 in_cell - logic 1 69 in_cell - logic 1 68 in_cell - logic 1 67 in_cell - logic 1 66 in_cell - logic 1 65 in_cell - logic 1 64 in_cell - logic 1 63 in_cell - logic 1 62 in_cell - oeb_oc1fp 61 out_cell - oc1fp 60 out_cell - oeb_opl 59 out_cell - opl 58 out_cell - oeb_ov5 57 out_cell - ov5 56 out_cell - oeb_otpl 55 out_cell - otpl 54 out_cell - oeb_otais 53 out_cell - otais 52 out_cell - oeb_odata[7] 51 out_cell - odata[7] 50 out_cell - oeb_odata[6] 49 out_cell - odata[6] 48 out_cell -
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 250 document id: pmc-2010883, issue 2 pin/ enable register bit cell type i.d. bit oeb_odata[5] 47 out_cell - odata[5] 46 out_cell - oeb_odata[4] 45 out_cell - odata[4] 44 out_cell - oeb_odata[3] 43 out_cell - odata[3] 42 out_cell - logic 1 41 in_cell - nc 40 out_cell - nc 39 out_cell - nc 38 out_cell - nc 37 out_cell - nc 36 out_cell - nc 35 out_cell - logic 1 34 in_cell - nc 33 out_cell - nc 32 out_cell - nc 31 out_cell - nc 30 out_cell - nc 29 out_cell - nc 28 out_cell - oeb_odata[2] 27 out_cell - odata[2] 26 out_cell - oeb_odata[1] 25 out_cell - odata[1] 24 out_cell - oeb_odata[0] 23 out_cell - odata[0] 22 out_cell - oeb_odp 21 out_cell - odp 20 out_cell - nc 19 out_cell - nc 18 out_cell - nc 17 out_cell - nc 16 out_cell - nc 15 out_cell - nc 14 out_cell - nc 13 out_cell - nc 12 out_cell - nc 11 out_cell - nc 10 out_cell - nc 9 out_cell - nc 8 out_cell - nc 7 out_cell -
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 251 document id: pmc-2010883, issue 2 pin/ enable register bit cell type i.d. bit nc 6 out_cell - nc 5 out_cell - nc 4 out_cell - oeb_tc1fp 3 out_cell - tc1fp 2 out_cell - nc 1 out_cell - nc 0 out_cell - notes 1. when set high, intb will be set to high impedance. 2. enable cell oeb_ pinname , tristates pin pinname when set high. 3. the first bit of the boundary scan chain is logic one (register bit 291). 4. cells titled ?logic one? are input observation cells whose input pad has a pull-up and is unbonded. 5. cells titled nc are output or bi-directional cells whose pad is unconnected to the device package. 6. the output cell in register bit 264 is the active low output enable for the bi-directional cell in register bit 263. 7. the output cell in register bit 168 is the active low output enable for the bi-directional cell in register bit 167. 8. the output cell in register bit 86 is the active low output enable for the bi-directional cell in register bit 85. 12.2.1 boundary scan cells in the following diagrams, clock-dr is equal to tck when the current controller state is shift-dr or capture-dr, and unchanging otherwise. the multiplexer in the center of the diagram selects one of four inputs, depending on the status of select lines g1 and g2. the id code bit is as listed in the boundary scan register table located above.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 252 document id: pmc-2010883, issue 2 figure 12 input observation cell (in_cell) input pad d c clock-dr scan chain out input to internal logic shift-dr scan chain in 1 2 mux 1 2 1 2 1 2 i.d. code bit idcode g1 g2 figure 13 output cell (out_cell) extest d c d c g1 g2 12 mux g1 1 1 mux output or enable from system logic scan chain in scan chain out output or enable shift-dr clock-dr update-dr 12 12 12 idoode i.d. code bit
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 253 document id: pmc-2010883, issue 2 figure 14 bidirectional cell (io_cell) d c d c g1 1 1 mux output from internal logic scan chain in scan chain out extest output to pin shift-dr clock-dr update-dr input from pin input to internal logic g1 1 2 mux 1 2 1 2 1 2 g2 idcode i.d. code bit figure 15 layout of output enable and bidirectional cells output enable from internal logic (0 = drive) input to internal logic output from internal logic scan chain in scan chain out i/o pad out_cell io_cell
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 254 document id: pmc-2010883, issue 2 13 operation there are several important aspects regarding the operation of nse-based switch fabrics; these are dealt with in turn in the following sections. 13.1 ?c1? synchronization. any nse/sbs fabric can be viewed as a collection of five ?columns? of devices: ? column 0 consists of the ingress flow from the load devices (e.g., some sbi device) ? column 1 consists of the ingress flow through the sbs devices ? column 2 consists of the nse-20g device ? column 3 consists of the egress flow through the sbs devices ? column 4 consists of the egress flow through the load devices (e.g. some sbi device) note that the devices in columns 0 and 4 are sbi bus devices while columns 1 and 3 are sbs or sbslite devices. the dual column references refer to their two separate simplex flows. path- aligned sts-12 frames are pipelined through this structure in a regular fashion, under control of a single clock source and frame pulse. there are latencies between these columns, and these latencies may vary from path to path. the following design is used to accommodate these latencies. a timing pulse for sbi frames (2 khz, 500 = s) is generated and fed to each device in the fabric. each chip has a framedelay register (rc1dly) which contains the count of 77.76 mhz clock ticks that device should delay from the reference timing pulse before expecting the c1 characters of the ingress sts-12 frames to have arrived. the base timing pulse is called t . the delays from t based on the settings of the rc1dly registers in the successive columns of the devices are called t 0 , ? t 4 . the first signal, t 1 (equal to t 0 ), determines the start of an sts-12 frame; this signal is used to instruct the ingress load devices (column 0) to start emitting an sts-12 frame (with its special ?c1? control character) at that time. t i is determined by the customer, based on device and wiring delays to be approximately the earliest time that all ?c1? characters will have arrived in the ingress fifos of the t i column of devices. t i is selected to provide assurance that all ?c1? characters have arrived at the i th column. the i th column of devices use the t i signal to synchronize emission of the sts-12 frames. the ingress fifos permit a variable latency in c1 arrival of up to 24 clock cycles. note: sbs devices, being a memory switches, add a latency of one complete frame plus a few clock ticks to the data.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 255 document id: pmc-2010883, issue 2 figure 16 ?c1? synchronization control ingress sbi device ingress sbs (1 frame delay) egress sbs (1 frame delay) 125 s source delay t 1 t 0 , t 1 t 2 t 3 t 4 delay 125 s t at 0 s egress sbi device delay t 2 delay t 3 delay t 4 t 0 nse delay 125 s (no delay t delay through ingress sbi device) 13.2 synchronized control setting changes the nse-20g and sbs devices support dual switch control settings. these dual settings permit one bank of settings to be operational while the other bank is updated as a result of some new connection requests. the cmp input selects the current operational switch control settings. cmp is sampled by the nse-20g on the base timing pulse t. the internal blocks sample the registered cmp value as they receive the next c1 character ?at least a delay of rc1dly. the new cmp value is applied on the first a1 character of the following sts-12 frame. this switchover is hitless; the control change does not disrupt the user data flow in any way. this feature is required for the addition of arbitrary new connections, as existing connections may need to be rerouted (see the discussion of the connection routing algorithm in this document). the ds0-granularity switch settings ram in organized into two control settings banks, these are switched by the above mechanisms on c1 boundaries. the nse also has to coordinate the switching of the connected sbs devices (if using the in-band link facility), so a broader understanding of the issues is required. to illustrate the system, the following describes actual examples: 13.2.1 sbs/nse systems with ds0 and cas switching when building a ds0 and cas switching system with the sbs, sbslite and nse devices the overall timing is based on the cas signaling multiframe on the sbi bus. in this configuration the delay through the sbs devices is a single 125 s sbi frame plus a few 77.76 mhz clocks and the delay through the nse is a few 77.76 mhz clocks. a single c1fp frame synchronization signal is distributed around the system. internal to the sbs and nse devices are programmable offsets used to account for propagation delays through the system. the key constraint is that all sbi frames are aligned going into the nse device. compatible devices are the pm8316 temux?-84, pm7388 freedm?-336, pm389 freedm?-336/84, pm7341 s/uni-ima-84, and other future sbi336 devices.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 256 document id: pmc-2010883, issue 2 the sbs and nse devices have two configuration pages controlling the switching of each ds0 with cas. the sbs has independent configuration pages for each direction of data flow through the device. the nse has one set of configuration pages. system configuration changes are made by writing to the offline configuration page in all affected devices and then swapping from the old configuration page to the new configuration page. the tcmp and ocmp signals control the current configuration page of the sbs and the cmp signal controls the current configuration page of the nse. swapping of configuration pages must be aligned to frame switching through the system to avoid any possible data corruption. the tcmp, ocmp and cmp signals are sampled with the sbs ic1fp and rc1fp signals and the nse rc1fp signals respectively. the cmp signals can be connected together at the expense of having to ensure all device configuration pages are current. the following diagram shows how the devices are connected together. the following timing diagrams show the external signals and the internal device frame alignment signal generated from the programmed delays. although the cmp signals are sampled externally with the c1fp signals they are also delayed internally to coincide with the internally delayed frame signals. these are also shown in the timing diagram. all internal signals are identified by the .int suffix. figure 17 temux-84?/sbslite?/nse/sbslite?/aal1gator-32? system ds0 switching with cas sbi336 sbi336s sbi336s sbi ic1fp tcmp sbslite #1 oc1fp rc1fp ocmp dc1fp temux84 ac1fp dc1fp aaligator32 ac1fp rc1fp cmp nse rc1fp ocmp oc1fp sbslite #2 ic1fp tcmp sbs#2 ocmp nse cmp sbs #1 tcmp c1fp sbs#2 tcmp sbs #1 ocmp
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 257 document id: pmc-2010883, issue 2 figure 18 cas multiframe timing t1 signaling mf #1 t1 signaling mf #2 e1 signaling mf #1 e1 signaling mf #2 e1 signaling mf #3 e1 0us 2500us 5000us c1fp all c mps frame alignment sbi fram e tim e t1 multiframe e1 multiframe figure 19 switch timing dsos with cas 0us 250us c1fp all c mps sbi frame time internal sigs sbs#1 ic1fp.int nse rc1fp.int sbs#2 rc1fp.int sbs#2 oc1fp.int sbs#1 tcmp.int nse cmp.int sbs#2 ocmp.int 13.2.2 sbslite/nse systems switching ds0s without cas this is very similar to the ds0 switching system configuration with cas described in the previous section. the only difference is that in this system the global c1fp can be reduced to every sbi multiframe rather than the longer 48 frame sbi bus signaling multiframe. the advantage is that there is less latency when making switch configuration changes via the cmp signals.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 258 document id: pmc-2010883, issue 2 the following diagram shows the system with the freedm-336? which does not require channel associated signaling. notice that the data latency through the system is the same as the case when switching ds0s with cas. figure 20 temux-84/sbslite/nse/sbslite/freedm-336 system ds0 switching no cas sbi336 sbi336s sbi336s sbi336 ic1fp tcmp sbslite #1 oc1fp rc1fp ocmp dc1fp temux84 ac1fp dc1fp freedm336 ac1fp rc1fp cmp nse rc1fp ocmp oc1fp sbslite #2 ic1fp tcmp sbs#2 ocmp nse cmp sbs #1 tcmp c1fp sbs#2 tcmp sbs #1 ocmp the following timing diagram shows the system timing when in this configuration.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 259 document id: pmc-2010883, issue 2 figure 21 switch timing - dsos without cas 0us 250us 500us c1fp all c mps sbi frame time internal sigs sbs ic1fp.int nse rc1fp.int sbs rc1fp.int sbs oc1fp.int sbs tcmp.int nse cmp.int sbs ocmp.int 13.2.3 sbslite/nse non-ds0 level switching with sbi336 devices the sbslite and nse supports another mode of operation that has lower latency and lower power when not switching at the ds0 level. in this mode both of these devices become a column switch rather than a ds0 switch. this also saves sw configuration since only one row of the switch configuration rams has to be configured rather than all nine rows. when switching ds0 through the system the sbslite must store an entire frame of ds0s before routing them to the destination to allow for the last ds0 of a frame to be switched to the first ds0 of the output. when doing column switching only one row of the sbi structure needs to be stored before switching can take place. the same diagram from the previous section can be used here. the following timing diagram shows the system timing for this mode of operation.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 260 document id: pmc-2010883, issue 2 figure 22 non ds0 switch timing 0us 250us 500us c1fp sbs#1 tcmp nse cmp sbs#2 ocmp sbi frame time internal sigs sbs ic1fp.int nse rc1fp.int sbs rc1fp.int sbs oc1fp.int sbs#1 tcmp.int nse cmp.int sbs#2 ocmp.int 13.3 switch setting algorithm nse/sbslite fabrics require an algorithm to map from customers? connection requirements to settings in the switch function control registers in these devices. four constraints apply to this algorithm: ? the algorithm must succeed for arbitrary permutation requests (i.e., neither the fabric nor the algorithm can fail to connect any one-to-one connection request). ? the algorithm must permit connection of 2-cast requests (port replication for either snooping or for advanced redundancy fabrics). in fabrics with spare capacity and multicast/broadcast servers, the algorithm must permit mapping of multicast/broadcast requests, up to the capacity of the fabric and the servers. ? this algorithm must be fast enough to satisfy requirements for response to operator requests for connection changes. ? this algorithm must be fast enough to satisfy requirements for protection responses to equipment failures. there are several aspects of this problem:
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 261 document id: pmc-2010883, issue 2 ? reconnection requests may be made individually in which case an incremental connection- setting algorithm is desired, or as complete batches in which case a batch algorithm may be desirable. ? reconnection requests may be pre-computed for fast protection fall-over mechanisms. 13.3.1 problem description the basic scheduling problem is to find the switch settings to properly route a set of connections. this is more formally described using the definitions in the following paragraphs. port: an sts-12 input/output data stream. the serial ports on the sbslite devices and the nse-20g devices operate at sts-12 rates and utilize sts-12 frames. since the intention of the nse-20g is to serve as a ds0-granularity switch, these sts-12 frames must be treated as repeating on a cycle of 12*9*90 = 9720 octets. all connections considered by this algorithm are octet connections. higher aggregations of traffic are handled as collections of octets, and are ignored for the purposes of describing this algorithm. timeslot: a specific octet location in the 9720 octet cyclic structure. spacetimeslot : a timeslot on a specific port, identified by a space component and a time component: for example, octet 9 on port 3 of sbslite device 2 connection: a mapping of an input spacetimeslot to an output spacetimeslot. connections come in two varieties, multicast and unicast. unicast connections are a mapping of a single input spacetimeslot to a single output spacetimeslot. multicast connections are a mapping of a single spacetimeslot to multiple output spacetimeslots. this algorithm is only concerned with the unicast problem. 13.3.2 na?ve algorithm we begin by describing a simplified version of the algorithm, applied to a specific sbslite/nse-20g configuration. figure 23 illustrates the application. four sbslite devices are connected by one port each to an nse, which is likewise connected by one port to the egress side of each sbslite device. only four ingress/egress ports of 32 on the nse-20g are in use in this application, but the ideas generalize easily to larger fabrics. information flows from left to right. each edge connects an egress port (on the left) to an ingress port (on the right); each such edge has a capacity of 9720 timeslots. for present purposes, we consider the sbslites to be supporting a single p-sbi port (eight bits at 77.76 mhz, or sts-12). also, we ignore the ?standby? lvds port. this reduces the sbslite from a multi-ported memory switch (which it in fact is) to a simpler two-ported (p-sbi and active s-sbi) time switch. this reduction in complexity makes the following discussion more straightforward, but does not reduce the algorithm?s ability to deal with the more complex cases introduced by the use of the four slower p-sbi ports, or by concurrent use of the standby lvds port. the nature of switching in this application is illustrated by figure 19. the two dimensional 4-x-4 matrices represent octet slots in both space (vertical) and time (horizontal). we trace through the switching processing in the following steps:
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 262 document id: pmc-2010883, issue 2 ? matrix i represents the arrival of the 16 octets from the sbi load devices. ? the mapping from matrix i to matrix ii represents the time switching action of all four ingress sbslites. each sbslite carries out an arbitrary permutation (including 1-to- many) of the ingress time slots within each space row. ? the mapping from matrix ii to matrix iii represents the space switching action of the nse. during each time slot, the nse-20g carries out an arbirary permutation (including 1-to- many) of the ingress space slots. ? the mapping from matrix iii to matrix iv represents the time switching action of all four egress sbslites. each sbslite carries out an arbitrary permutation (including 1-to-many) of the ingress time slots within each space row. it is known that any complete permutation from matrix i to matrix iv can be carried out in this way. figure 19 illustrates two particular octets ( and ) being switched through the sbs:nse:sbs time:space:time switch. figure 23 example graph sbslite 0 nse ingress sbslites egress sbslites sbslite 1 sbslite 2 sbslite 3 sbslite 0 sbslite 1 sbslite 2 sbslite 3
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 263 document id: pmc-2010883, issue 2 figure 24 time:space:time switching in one nse-20g and four single-ported sbss time switching by ingress sbss 0123 0 1 2 3 time space (sbs #) 0123 0 1 2 3 time space (sbs #) 0123 0 1 2 3 time space (sbs #) 0123 0 1 2 3 time space (sbs #) | | time switching by egress sbss space switching by nse (s=1, t=2) => sbslite => (s=1, t=0) => nse => (s=0, t=0) => sbslite => (s=0, t=3) : : : : : : : : (s=3, t=2) => sbslite => (s=3, t=3) => nse => (s=1, t=3) => sbslite => (s=1, t=0) i ii iii iv consider a request to route an octet from ingress port i to egress port j, where i and j range from 0 to 3, over four ports corresponding to the four sbslite devices. to make this connection, we must find a timeslot in the nse-20g which can accept an octet from the ingress sbslite and send an octet to the egress sbslite. if the nse-20g has these two slots free in the same timeslot, then the sbslites must also have the corresponding slot free. the actual routing of the sample is accomplished in several steps. the octet is: ? mapped to the free timeslot by the ingress sbslite port ? picked up by the nse-20g in that timeslot on the port from the ingress sbslite and mapped to the port which leads to the egress sbslite ? picked up by the egress sbslite in the expected timeslot it may not be possible to find a free time which connects the ingress sbslite to the egress sbslite, even though both sbslite devices have unused capacity into the nse-20g core (the ingress sbs may have a free timeslot at time i and the egress sbslite may have a free timeslot at time j, but i ~= j). such cases require a more complex algorithm which is capable of disconnecting and reconnecting other connections to make space for the new i to j connection. (disconnection and reconnection of other connections is done hitlessly by nse/sbslite fabrics.) this more sophisticated algorithm is described in the remainder of this section.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 264 document id: pmc-2010883, issue 2 13.3.3 bi-partite graphs a general solution to the connection problem is a schedule where each connection is assigned to one of the 9720 timeslots in each time stage such that no two connections conflict. this solution then maps to physical switch settings for the sbslite and nse-20g devices. the following definitions allow us to represent the problem as an abstract graph problem: 1. draw a graph where each input and output port is represented as a node . 2. partition the graph so that all of the input ports are in one partition and all the output ports are in the other. 3. draw an edge from an input node to an output node if there is a connection from the corresponding input port to the corresponding output port. this results in a bipartite graph where each node has a maximum degree of 9720 (the total number of possible connections from/to a port). a subset of this problem (6 nodes, 2 timeslots) is illustrated in figure 23. we want to assign the edges (connections) to timeslots such that no coincident edges are assigned to the same timeslot. notice that a solution to the problem consists of a permutation (or partial permutation) mapping of input nodes onto output nodes for each of the timeslots. these permutation mappings correspond to one set of switch settings for the nse- 20g devices. figure 25 example graph a b c d e f 1 2 3 4 5 6 inputs outputs 13.3.4 unicast scheduling unicast connections through the nse-20g is a relatively simple problem: given n input ports, n output ports, m time slots and a guarantee that no port is oversubscribed, schedule the transfer of all input slots to output slots. this solution uses the time slot interchange on the sbslite chips to schedule the flow of inputs to outputs through the nse-20g fabric with no collisions. unicast connections have a perfect solution.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 265 document id: pmc-2010883, issue 2 example the algorithm is illustrated using an example with 3 timeslots and 6 input/output nodes. the original configuration is shown in figure 26. the new connection originates at input node f , and terminates at output node 6 . this is edge (f 6) in the bipartite graph. figure 26 example problem a b c d e f 1 2 3 4 5 6 a b c d e f 1 2 3 4 5 6 a b c d e f 1 2 3 4 5 6 timeslot 1 timeslot 2 timeslot 3 input node f is available on timeslot 3 and output node 6 is available on timeslot 2. merging these two timeslots and adding the edge (f 6) results in the graph shown in figure 27. in this graph, the edges assigned to timeslot 3 are shown as dotted lines. the edge (f 6) is shown in bold. figure 27 merged graph a b c d e f 1 2 3 4 5 6
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 266 document id: pmc-2010883, issue 2 there are 3 maximal length paths in the merged graph, (a 2 b 1), (d 5), and (c 4 f 6 e 3). the last path mentioned requires re-labeling. if we start with edge (c 4) and traverse the path, alternately labeling with timeslot 2 and 3, we get the graph in figure 28. the timeslot labeling in this graph replaces timeslots 2 and 3 in the original graph (and schedule). figure 28 relabeled graph a b c d e f 1 2 3 4 5 6 13.3.5 experimental results the performance of pmc-sierra?s open path algorithm has been studied by implementing it in c++ and running extensive random connection tests. tests for nse/sbslite applications of this algorithm used a single nse-20g connected to 32 sbslites, each carrying a full complement of ds0 connections (258,048 ds0 calls). many runs were completed in which an initially unloaded switch is presented with a sequence of random call establishment requests up to the point of 100% switching loads. these runs were carried out on a 600 mhz alpha running linux. in all of these runs, no otctet open path search took longer than 10 s, thus supporting up to 100,000 1 ds0 call establishments per second. t1s and other aggregates require the establishment of multiple octet open paths; complete t1s can be established at about 3,700 t1/sec. the reasons for this surprisingly good performance are explained in the separate document describing the open path algorithm. it is our opinion that these rates are sufficiently high that the call establishment algorithm should not be a bottleneck in any application of the nse/sbslite, and that this rate is sufficiently high to permit the nse/sbslite to be used for pstn call establishment rates (up to 100,000 calls/sec in a switch supporting 258,048 full-duplex calls, with the switching core implemented in 1 nse-20g and 32 sbslite chips). 13.3.6 multicast scheduling general multicast connections is an entirely different class of problem. with unrestricted multicast, the underlying architecture is non-blocking up to capacity dictated by the number of slots in a frame, but finding the non-blocking schedule is np-hard. there is no polynomial time running algorithm known to solve this class of problem. 1 this ignores inband or p to nse limitations.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 267 document id: pmc-2010883, issue 2 there are two approaches to solving the multicast problem: ? heuristic algorithms that have statistical probability of success for simple versions of the problem; (and) ? restricted multicast, where the form of restriction provides a means to solve the scheduling problem. the general multicast problem is not considered in this document. see the pmc nse documentation for descriptions of the use of multicast in a protection switching schemes; the same concepts apply to nse/sbslite fabrics. 13.4 jtag support the sbslite supports the ieee boundary scan specification as described in the ieee 1149.1 standards. the test access port (tap) consists of the five standard pins, trstb, tck, tms, tdi and tdo used to control the tap controller and the boundary scan registers. the trstb input is the active-low reset signal used to reset the tap controller. tck is the test clock used to sample data on input, tdi, and to output data on output, tdo. the tms input is used to direct the tap controller through its states. the basic boundary scan architecture is shown below.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 268 document id: pmc-2010883, issue 2 figure 29 boundary scan architecture boundary scan register control tdi tdo device identification register bypass register instruction register and decode trstb tms tck test access port controller mux dff select tri-state enable the boundary scan architecture consists of a tap controller, an instruction register with instruction decode, a bypass register, a device identification register and a boundary scan register. the tap controller interprets the tms input and generates control signals to load the instruction and data registers. the instruction register with instruction decode block is used to select the test to be executed and/or the register to be accessed. the bypass register offers a single-bit delay from primary input, tdi, to primary output, tdo. the device identification register contains the device identification code. the boundary scan register allows testing of board inter-connectivity. the boundary scan register consists of a shift register place in series with device inputs and outputs. using the boundary scan register, all digital inputs can be sampled and shifted out on primary output, tdo. in addition, patterns can be shifted in on primary input, tdi, and forced onto all digital outputs.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 269 document id: pmc-2010883, issue 2 13.4.1 tap controller the tap controller is a synchronous finite state machine clocked by the rising edge of primary input, tck. all state transitions are controlled using primary input, tms. the finite state machine is described below. figure 30 tap controller finite state machine test-logic-reset run-test-idle select-dr-scan select-ir-scan capture-dr capture-ir shift-dr shift-ir exit1-dr exit1-ir pause-dr pause-ir exit2-dr exit2-ir update-dr update-ir trstb=0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 0 0 0 0 0 1 1 1 1 1 1 a ll transitions dependent on input tms 0 0 0 0 0 1
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 270 document id: pmc-2010883, issue 2 13.4.2 states test-logic-reset the test logic reset state is used to disable the tap logic when the device is in normal mode operation. the state is entered asynchronously by asserting input, trstb. the state is entered synchronously regardless of the current tap controller state by forcing input, tms high for 5 tck clock cycles. while in this state, the instruction register is set to the idcode instruction. run-test-idle the run test/idle state is used to execute tests. capture-dr the capture data register state is used to load parallel data into the test data registers selected by the current instruction. if the selected register does not allow parallel loads or no loading is required by the current instruction, the test register maintains its value. loading occurs on the rising edge of tck. shift-dr the shift data register state is used to shift the selected test data registers by one stage. shifting is from msb to lsb and occurs on the rising edge of tck. update-dr the update data register state is used to load a test register's parallel output latch. in general, the output latches are used to control the device. for example, for the extest instruction, the boundary scan test register's parallel output latches are used to control the device's outputs. the parallel output latches are updated on the falling edge of tck. capture-ir the capture instruction register state is used to load the instruction register with a fixed instruction. the load occurs on the rising edge of tck. shift-ir the shift instruction register state is used to shift both the instruction register and the selected test data registers by one stage. shifting is from msb to lsb and occurs on the rising edge of tck. update-ir the update instruction register state is used to load a new instruction into the instruction register. the new instruction must be scanned in using the shift-ir state. the load occurs on the falling edge of tck. the pause-dr and pause-ir states are provided to allow shifting through the test data and/or instruction registers to be momentarily paused.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 271 document id: pmc-2010883, issue 2 boundary scan instructions the following is a description of the standard instructions. each instruction selects a serial test data register path between input, tdi and output, tdo. 13.4.3 instructions bypass the bypass instruction shifts data from input, tdi to output, tdo with one tck clock period delay. the instruction is used to bypass the device. extest the external test instruction allows testing of the interconnection to other devices. when the current instruction is the extest instruction, the boundary scan register is place between input, tdi and output, tdo. primary device inputs can be sampled by loading the boundary scan register using the capture-dr state. the sampled values can then be viewed by shifting the boundary scan register using the shift-dr state. primary device outputs can be controlled by loading patterns shifted in through input tdi into the boundary scan register using the update-dr state. sample the sample instruction samples all the device inputs and outputs. for this instruction, the boundary scan register is placed between tdi and tdo. primary device inputs and outputs can be sampled by loading the boundary scan register using the capture-dr state. the sampled values can then be viewed by shifting the boundary scan register using the shift-dr state. idcode the identification instruction is used to connect the identification register between tdi and tdo. the device's identification code can then be shifted out using the shift-dr state. stctest the single transport chain instruction is used to test out the tap controller and the boundary scan register during production test. when this instruction is the current instruction, the boundary scan register is connected between tdi and tdo. during the capture-dr state, the device identification code is loaded into the boundary scan register. the code can then be shifted out output, tdo using the shift-dr state.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 272 document id: pmc-2010883, issue 2 14 functional timing 14.1 incoming sbi336 bus functional timing figure 31 shows the functional timing for the incoming 77.76 mhz sbi336 bus configured for connection to a physical layer device. when configured for the sbi336 bus, timing is provided by a 77.76 mhz srefclk which is also connected to sysclk. when connecting to a physical layer device, the justification request signal, just_req, is used by the physical layer device to control link timing from a slave link layer device and is an input to the sbslite. figure 31 shows a number of capabilities of the sbi bus. ic1fp is a 2 khz pulse that indicates the sbi336 frame alignment from which all control signals and data are synchronized. the payload signal indicates valid tributary data as well as positive and negative tributary timing adjustments. in figure 31 the first occurrence of ipl high shows a negative timing adjustment where valid data is carried in the v3 location. the last cycle with ipl low indicates a positive timing adjustment in the tributary octet after v3 where there is no valid data. the iv5 signal indicates that the current data octet is the v5 octet used for tributary framing alignment. the just_req signal is only valid during the v3 octets and the tributary octets following the v3 octets. the first occurrence of just_req high during the v3 octet indicates to the slave link layer device that it should speed next frame by performing a negative timing adjustment. the second occurrence of just_req high during the tributary octet after the v3 octet indicates to the slave link layer device that it should slow down by performing a positive timing adjustment during the next frame. the last v3 in the diagram is meant to be the last v3 for all the tributaries. the icmp signal selects the active connection memory page in the memory switch. it is sampled at the c1 byte position in every multiframe. icmp is ignored at all other positions within the sbi frame. the connection memory page is switched on the next sbi bus multiframe boundary after icmp is sampled. the sbi multiframe can be either 4 or 48 frames, depending on the value of mf_48 in the sbslite master configuration register. figure 31 incoming sbi336 functional timing c1 v3 v3 ds0#9 v3 ds0#4 v5 ds0#2 ds0#7 valid srefclk ic1fp ipl iv5 idata[7:0] idp just_req icmp
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 273 document id: pmc-2010883, issue 2 when configured as connecting to a link layer device, the just_req signal is an output synchronized to oc1fp rather than ic1fp as shown in figure 31. with the exception of the just_req signal, the functional timing of the incoming sbi336 bus is the same when connecting to a link layer device as connecting to a physical layer device. 14.2 incoming 77 mhz telecombus functional timing figure 32 shows the timing of the incoming telecombus stream when configured for 77.76 mhz mode. timing is provided by srefclk. sonet/sdh data is carried in the idata[7:0]. the bytes are arranged in order of transmission in an sts-12/stm-4 stream. each transport/section overhead byte is labeled by sx,y and type. payload bytes are labeled by sx,y and bn, where ?n? is the active offset of the byte. within sx,y, the sts-3/stm-1 number is given by ?x? and the column number within the sts-3/stm-1 is given by ?y?. the ipl signal is set high to mark payload bytes and is set low at all other bytes. similarly, itpl is set high to mark tributary payload bytes and is set low at all other bytes. the composite transport frame and payload frame signal ij0j1v1 is equivalent to the ic1fp in sbi mode and is set high with ipl set low to mark the j0 byte of a transport frame. ic1j1v1/ic1fp is set high with ipl set high to mark the j1 bytes and v1 multiframe of all the streams within idata[7:0]. the sbslite requires that all j1s follow immediately after the j0(z0) or the h3 overhead bytes and therefore ignores the ic1j1v1 signal during these 12 j1 locations. the sbslite also requires that all h4 multiframes be aligned forcing all v1 bytes to follow the j1 bytes. multiframe alignment is based on the first v1 indication by ic1j1v1 after the twelve j1 bytes. tributary path frame boundaries are marked by a logic high on the iv5 signal. tributaries in ais alarm are indicated by the itais signal. the icmp signal selects the active connection memory page in the memory switch. it is only valid at the j0 byte position and is ignored at all other positions within the transport frame. the connection memory page is switched on the next telecombus frame boundary after icmp is sampled at the j0 byte. in figure 32 below, sts-3/stm-1 numbers 1, 2, and 4 are configured for sts-3/au3 operation. sts-3/stm-1 number 3 is configured for sts-3c/au4 operation. all streams are shown to have an active offset of 522 by the high level on ipl and ic1j1v1/ic1fp at byte sx,y/b522. no pointer justifications are shown nor permitted by the sbslite. all stream are configured to carry virtual tributaries/tributary units. the payload frame boundary of one such tributary is located at byte s2,1/b0, as marked by a high level on iv5. at byte s2,2/b0, the tributary carried in stream s2,2 (2 (stm-1 #2, au3 #2) is shown to be in tributary path ais by the high level on itais signal. the arrangement shown in figure 32 is for illustrative purposes only; other configurations, alarm conditions, active offsets and justification events, etc. are possible.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 274 document id: pmc-2010883, issue 2 figure 32 incoming 77 mhz telecombus functional timing srefclk idata[7:0] ipl ic1fp(ic1j1v1) itpl iv5 s4,3 a2 s1,1 j0 s2,1 z0 s3,1 z0 s4,1 z0 s1,2 z0 s2,2 z0 s3,2 z0 s4,2 z0 s1,3 z0 s2,3 z0 s3,3 z0 s4,3 z0 s1,1 b522 s2,1 b522 s3,1 b522 s4,1 b522 s1,1 h3 s2,1 h3 s3,1 h3 s4,1 h3 s1,2 h3 s2,2 h3 s3,2 h3 s4,2 h3 s1,3 h3 s2,3 h3 s3,3 h3 s4,3 h3 s4,3 h2 s1,1 b0 s2,1 b0 s3,1 b0 s4,1 b0 s1,2 b0 s2,2 b0 s3,2 b0 itais . . . idp icmp . . . . . . vaild x x x x x x x 14.3 transmit serial lvds functional timing the delay through the sbslite is dependent on the operating mode. the timing from the incoming telecom or sbi bus to the lvds link differs between telecombus mode and sbi mode. the timing when in sbi mode is also dependent on whether the sbslite is switching at the ds0 level and above or is switching only at the tributary level. when switching only tributaries in sbi mode we have the same delay through the sbslite as when switching tributaries in telecombus mode. when switching tributaries in sbi mode or when in telecombus mode, the sbslite is acting as a column switch and introduces a minimum delay equivalent to one row in a 77.76 mhz telecombus structure or sbi336 bus structure. this minimum delay equates to 1080 sysclk cycles. the actual delay will be slightly longer by no more than 31 sysclk cycles to allow for other data path delays within the sbslite. figure 33 incoming telecombus to lvds functional timing s4,3 / a2 tnwrk/ tpwrk s1,1 / j0 s2,1 / z0 tnprot/ tpprot ... minimum delay, 1080 + 23 cycles ... sysclk ipl maximum delay, 1080 + 31 cycles ic1fp (ij0j1v1) s1,1 / j0 ... ... tc1fp delay j0 on ij0j1v1 to tc1fp, 1080 + 32 cycles
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 275 document id: pmc-2010883, issue 2 when switching ds0s in sbi mode, the minimum data delay through the sbslite increases to an entire sbi336 frame or 9720 sysclk cycles. the actual delay will be slightly longer by no more than 31 sysclk cycles to allow for other data path delays within the sbslite. the channel associated signaling delay through the sbslite will be two full t1 or e1 multiframes which is 4ms for e1 links and 6ms for t1 links. figure 34 incoming sbi bus to lvds timing with ds0 switching tnwrk/ tpwrk tnprot/ tpprot ... minimum delay, 9720 + 23 cycles ... sysclk ipl maximum delay, 9720 + 31 cycles ic1fp c1 ... ... tc1fp delay ic1fp to tc1fp, 9720 + 32 cycles c1 the relative delay from the incoming bus to either of the working and protect lvds links may be different but will be within a couple of sysclk cycles of each other. although figure 33 and figure 34 show ic1fp or ij0j1v1 relative to sysclk, ic1fp(ij0j1v1) is sampled by srefclk. 14.4 receive serial lvds functional timing figure 35 below shows the relative timing of the receive lvds links. in telecombus mode links carry sonet/sdh frame octets that are encoded in 8b/10b characters. frame boundaries, tributary justification events and tributary alarm conditions are encoded in special control characters. the upstream devices sourcing the links share a common clock and have a common transport frame alignment that is synchronized by the receive serial interface frame pulse signal (rc1fp). due to phase noise of clock multiplication circuits and backplane routing discrepancies, the links will not be phase aligned to each other (within a tolerance level of 24 byte times) but are frequency locked the delay from rc1fp being sampled high to the first and last j0 character is shown in figure 35. in this example, the first j0 is delivered by the working link (rnwrk/rpwrk). the delay to the last j0 represents the time when both links have delivered their j0 character. the minimum value for the internal programmable delay (rc1fpdly[13:0]) is the delay to the last j0 character plus 15. the maximum value is the delay to the first j0 character plus 31. consequently, the external system must ensure that the relative delays between all the receive lvds links be less than 16 bytes. the relative phases of the links in figure 35 are shown for illustrative purposes only.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 276 document id: pmc-2010883, issue 2 figure 35 receive lvds link timing s4,3 / a2 s1,1 / j0 s2,1 / z0 rnwrk/ rpwrk s3,3 / a2 s4,4 / a2 s1,1 / j0 rnprot/ rpprot ... delay to first j0 ... sysclk rc1fp delay to last j0 figure 36 shows the timing relationships around the rc1fp signal. the outgoing memory page selection signal (ocmp) and the receive working serial data select signal (rwsel) are only valid at the sysclk cycle located by rc1fp. they are ignored at all other locations within the transport frame. the delay from rc1fp is to the j0 byte on the outgoing sbi or telecombus stream is the sum of the value programmed into the rc1fpdly[13:0] register and processing delay of 18 sysclk cycles. figure 36 outgoing synchronization timing sysclk . . . . . . opl rc1fp ocmp vaild x x rwsel vaild x x x x x x odata[7:0] oc1fp s4,3 a2 s1,1 j0 s2,1 z0 s3,1 z0 s4,1 z0 s1,2 z0 s2,2 z0 s3,2 z0 s4,2 z0 s1,3 z0 s2,3 z0 s3,3 z0 s4,3 z0 s1,1 b522 s2,1 b522 s3,1 b522 s3,3 a2 rc1fpdly[13:0] + 18
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 277 document id: pmc-2010883, issue 2 14.5 outgoing 77.76 mhz telecombus functional timing figure 37 shows the timing of the outgoing telecombus stream. timing is provided by srefclk. sonet/sdh data is carried on the odata[7:0] signals. the bytes are arranged in order of transmission in an sts-12/stm-4 stream. each transport/section overhead byte is labeled by sx,y and type. payload bytes are labeled by sx,y and bn, where ?n? is the active offset of the byte. within sx,y, the sts-3/stm-1 number is given by ?x? and the column number within the sts-3/stm-1 is given by ?y?. the opl signal is set high to mark payload bytes and is set low at all other bytes. similarly, otpl is set high to mark tributary payload bytes and is set low at all other bytes. the composite transport frame and payload frame signal, oc1fp (oj0j1v1), is set high with opl set low to mark the j0 byte of a transport frame. oj0j1v1 is optionally set high with opl also set high to mark the j1 byte and the byte following j1 of all the streams within odata[7:0]. tributary path frame boundaries are marked by a logic high on the ov5 signal. tributaries in ais alarm are indicated by the otais signal. figure 37 outgoing 77.76 mhz telecombus functional timing srefclk odata[7:0] opl oc1fp (oc1j1v1) otpl ov5 s4,3 a2 s1,1 j0 s2,1 z0 s3,1 z0 s4,1 z0 s1,2 z0 s2,2 z0 s3,2 z0 s4,2 z0 s1,3 z0 s2,3 z0 s3,3 z0 s4,3 z0 s1,1 b522 s2,1 b522 s3,1 b522 s4,1 b522 s1,1 h3 s2,1 h3 s3,1 h3 s4,1 h3 s1,2 h3 s2,2 h3 s3,2 h3 s4,2 h3 s1,3 h3 s2,3 h3 s3,3 h3 s4,3 h3 s4,3 h2 s1,1 b0 s2,1 b0 s3,1 b0 s4,1 b0 s1,2 b0 s2,2 b0 s3,2 b0 otais . . . odp . . . . . . optionally set for j1 and v1 positions 14.6 outgoing sbi336 functional timing figure 38 shows the functional timing for the outgoing 77.76 mhz sbi336 bus configured for connection to a link layer device. when configured for the sbi336 bus, timing is provided by a 77.76 mhz srefclk which is also connected to sysclk. when connecting to a link layer device the justification request signal, just_req, is output from the sbslite and is used to control the link timing. if the sbslite is connected to a physical layer device the just_req signal is an input synchronized to ic1fp rather than oc1fp. with the exception of the just_req signal, the functional timing of the outgoing sbi336 bus is the same when connecting to a physical layer device as connecting to a link layer device.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 278 document id: pmc-2010883, issue 2 figure 38 outgoing sbi336 functional timing c1 v3 v3 ds0 v3 ds0 v5 ds0 ds 0 srefclk oc1fp opl ov5 odata[7:0] odp just_req
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 279 document id: pmc-2010883, issue 2 15 absolute maximum ratings maximum rating are the worst case limits that the device can withstand without sustaining permanent damage. they are not indicative of normal mode operation conditions. table 28 absolute maximum ratings case temperature under bias -40c to +85c storage temperature -40c to +125c supply voltage (dvddo[x]) -0.3v to +4.6v supply voltage (dvddi[x]) -0.3v to +3.6v voltage on any digital pin -0.3v to dvddo + 0.5v static discharge voltage 1000 v latch-up current 100 ma dc input current 20 ma lead temperature +230c absolute maximum junction temperature +150c
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 280 document id: pmc-2010883, issue 2 16 d. c. characteristics t c = -40c to +85c, v ddo = 3.3v 8%, v ddi = 1.8v 5% (typical conditions: t c = 25c, v ddo = 3.3v, v ddi = 1.8v) table 29 d.c characteristics symbol parameter min typ max units conditions v ddo power supply 3.04 3.3 3.56 vs v ddi power supply 1.71 1.8 1.89 vs v il input low voltage 0 0.8 vs guaranteed input low voltage. v ih input high voltage 1.7 v ddo +0.5 vs guaranteed input high voltage. v ol output or bi-directional low voltage 0.1 0.4 vs guaranteed output low voltage at v ddo =3.04v and i ol = -2ma minimum. v oh output or bi-directional high voltage 2.4 2.7 vs guaranteed output high voltage at v ddo =3.04v and i oh = -2ma minimum. v t+ reset input high voltage 2.0 v ddo +0.5 vs applies to rstb and trstb only. v t- reset input low voltage -0.5 0.8 vs applies to rstb and trstb only. v th reset input hysteresis voltage 0.5 vs applies to rstb and trstb only. i ilpu input low current +20 +83 +200 a v il = gnd. notes 1 and 3. i ihpu input high current -10 0 +10 a v ih = v dd . notes 1 and 3. i il input low current -10 0 +10 a v il = gnd. notes 2 and 3. i ih input high current -10 0 +10 a v ih = v dd . notes 2 and 3. c in input capacitance 5 pf t a =25c, f = 1 mhz c out output capacitance 5 pf t a =25c, f = 1 mhz c io bi-directional capacitance 5pft a =25c, f = 1 mhz i ddop operating current tbd ma v ddo = 3.56v, v ddi = 1.89v, outputs unloaded (77.76 mhz incoming outgoing interface with serial lvds tx/rx interface) notes on d.c. characteristics 1. input pin or bi-directional pin with internal pull-up resistor. 2. input pin or bi-directional pin without internal pull-up resistor. 3. negative currents flow into the device (sinking), positive currents flow out of the device (sourcing).
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 281 document id: pmc-2010883, issue 2 17 microprocessor interface timing characteristics (t c = -40 c to +85 c, v ddo = 3.3 v 8%, v ddi = 1.8 v 5%) table 30 microprocessor interface read access (figure 39) symbol parameter min max units ts ar address to valid read set-up time 5 ns th ar address to valid read hold time 5 ns ts alr address to latch set-up time 5 ns th alr address to latch hold time 5 ns tv l valid latch pulse width 2 ns ts lr latch to read set-up 0 ns th lr latch to read hold 5 ns tp rd valid read to valid data propagation delay 15 ns tz rd valid read negated to output tri-state 15 ns tz inth valid read negated to intb high 20 ns figure 39 microprocessor interface read timing valid tzrd tprd tzinth thlr tslr thalr tvl tsalr tvl thar tsar a [11:0] a le (csb+rdb) intb d[7:0] notes on microprocessor interface read timing 1. output propagation delay time is the time in nanoseconds from the 1.4 v point of the reference signal to the 1.4 v point of the output. 2. maximum output propagation delays are measured with a 100 pf load on the microprocessor interface data bus, (d[15:0]). 3. a valid read cycle is defined as a logical or of the csb and the rdb signals.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 282 document id: pmc-2010883, issue 2 4. in non-multiplexed address/data bus architectures, ale should be held high so parameters ts alr , th alr , tv l , ts lr , and th lr are not applicable. 5. parameter th ar is not applicable if address latching is used. 6. when a set-up time is specified between an input and a clock, the set-up time is the time in nanoseconds from the 1.4 v point of the input to the 1.4 v point of the clock. 7. when a hold time is specified between an input and a clock, the hold time is the time in nanoseconds from the 1.4 v point of the input to the 1.4 v point of the clock.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 283 document id: pmc-2010883, issue 2 table 31 microprocessor interface write access (figure 40) symbol parameter min max units ts aw address to valid write set-up time 5 ns ts dw data to valid write set-up time 10 ns ts alw address to latch set-up time 5 ns th alw address to latch hold time 5 ns tv l valid latch pulse width 2 ns ts lw latch to write set-up 0 ns th lw latch to write hold 5 ns th dw data to valid write hold time 5 ns th aw address to valid write hold time 5 ns tv wr valid write pulse width 15 ns figure 40 microprocessor interface write timing valid thdw tsdw tvwr tvwr tslw thalw tvl tsalw tvl thaw tsaw a [11:0] a le (csb+wrb) d[7:0] thlw notes on microprocessor interface write timing 1. a valid write cycle is defined as a logical or of the csb and the wrb signals. 2. in non-multiplexed address/data bus architectures, ale should be held high so parameters ts alw , th alw , tv l , ts lw , and th lw are not applicable. 3. parameter th aw is not applicable if address latching is used. 4. when a set-up time is specified between an input and a clock, the set-up time is the time in nanoseconds from the 1.4 v point of the input to the 1.4 v point of the clock. 5. when a hold time is specified between an input and a clock, the hold time is the time in nanoseconds from the 1.4 v point of the input to the 1.4 v point of the clock.
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 284 document id: pmc-2010883, issue 2 18 a.c. timing characteristics (t c = -40 c to +85 c, v ddo = 3.3 v 8%, v ddi = 1.8 v 5%) 18.1 sbslite incoming bus timing table 32 sbslite incoming timing (figure 41) symbol description min max units srefclk frequency (nominally 19.44 mhz or 77.76 mhz ) -50 +50 ppm srefclk duty cycle 40 60 % ts id idata[7:0] set-up time 3 ns th id idata[7:0] hold time 0 ns ts idp idp set-up time 3 ns th idp idp hold time 0 ns ts ipl ipl set-up time 3 ns th ipl ipl hold time 0 ns ts ic1 ic1fp set-up time 3 ns th ic1 ic1fp hold time 0 ns ts jr just_req set-up time 3 ns th jr just_req hold time 0 ns ts itais itais set-up time 3 ns th itais itais hold time 0 ns ts itpl itpl set-up time 3 ns th itpl itpl hold time 0 ns ts iv5 iv5 set-up time 3 ns th iv5 iv5 hold time 0 ns ts icmp icmp set-up time 3 ns th icmp icmp hold time 0 ns
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 285 document id: pmc-2010883, issue 2 figure 41 sbslite incoming timing srefclk idata[7:0] ts id th id ts idp th idp ts ipl th ipl ts th ts th ts th idp ipl ic1fp just_req itais ts th itpl ts th iv5 ts th icmp ic1 ic1 jr jr itais itais itpl itpl iv5 iv5 icmp icmp 18.2 sbslite receive bus timing table 33 sbslite receive timing (figure 42) symbol description min max units sysclk frequency (nominally 77.76 mhz ) -50 +50 ppm sysclk duty cycle 40 60 % ts rc1 rc1fp set-up time 3 ns th rc1 rc1fp hold time 0 ns ts ocmp ocmp set-up time 3 ns
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 286 document id: pmc-2010883, issue 2 symbol description min max units th ocmp ocmp hold time 0 ns ts rws rwsel set-up time 3 ns th rws rwsel hold time 0 ns figure 42 sbslite receive timing sysclk rc1fp ts rc1 th rc1 ts ocmp th ts rws th rws ocmp rwsel ocmp notes on input timing 1. when a set-up time is specified between an input and a clock, the set-up time is the time in nanoseconds from the 1.4 v point of the input to the 1.4 v point of the clock. 2. when a hold time is specified between an input and a clock, the hold time is the time in nanoseconds from the 1.4 v point of the clock to the 1.4 v point of the input. 18.3 sbslite outgoing bus timing table 34 sbslite outgoing timing (figure 43) symbol description min max units tp od srefclk high to odata[7:0] valid 1 7 ns tp odp srefclk high to odp valid 1 7 ns tp otpl srefclk high to otpl valid 1 7 ns tp ov5 srefclk high to ov5 valid 1 7 ns tp opl srefclk high to opl valid 1 7 ns tp jr srefclk high to just_req valid 1 7 ns tp otais srefclk high to otais valid 1 7 ns tp oc1 srefclk high to oc1fp valid 1 7 ns
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 287 document id: pmc-2010883, issue 2 figure 43 sbslite outgoing timing srefclk odata[7:0] tp od tp odp tp otpl tp tp tp odp otpl ov5 opl just_req tp otais tp oc1fp ov5 opl jr otais oc1 18.4 sbslite transmit bus timing table 35 sbslite transmit timing (figure 44) symbol description min max units tp tc1 sysclk high to tc1fp valid 1 7 ns figure 44 sbslite transmit timing sysclk tc1fp tp tc1
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 288 document id: pmc-2010883, issue 2 notes on output timing 1. output propagation delay time is the time in nanoseconds from the 1.4 v point of the reference signal to the 1.4 v point of the output. 2. output propagation delays are measured with a 50 pf load on the outputs operating at 77.76 mhz except where indicated. 18.5 jtag port interface table 36 jtag port interface (figure 45) symbol description min max units f tck tck frequency 4 mhz thi tck tck hi pulse width 100 ns thi tck tck lo pulse width 100 ns ts tms tms set-up time to tck 25 ns th tms tms hold time to tck 25 ns ts tdi tdi set-up time to tck 25 ns th tdi tdi hold time to tck 25 ns tp tdo tck low to tdo valid 2 35 ns tv trstb trstb pulse width 100 ns figure 45 jtag port interface timing tlotck tlotck thitck thitck tvtrstb tvtrstb tptdo thtms tstms thtdi tstdi tck tdi tms tdo trstb
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 289 document id: pmc-2010883, issue 2 19 ordering and thermal information 19.1 ordering information part no. description PM8611-biap 160 plastic ball grid array (pbga) 19.2 thermal information the sbslite is designed to operate over a wide temperature range and is suited for industrial applications such as outside plant equipment. maximum long-term operating junction temperature to ensure adequate long-term life. 105 oc maximum junction temperature for short-term excursions with guaranteed continued functional performance. 1 this condition will typically be reached when local ambient reaches 85 oc. 125 oc minimum ambient temperature -40 oc thermal resistance vs air flow 2 airflow natural convection 200 lfm 400 lfm ja ( 0 c/w) 27.9 22.6 20.7 device compact model 3 jt ( 0 c/w) 5.9 jb ( 0 c/w) 18.8 operating power is dissipated in package (watts) at worst case power supply power (watts) 1.36 notes 1. short-term is understood as the definition stated in telcordia generic requirements gr-63-core. 2. ja , the total junction to ambient thermal resistance as measured according to jedec standard jesd51 (2s2p) 3. jb , the junction-to-board thermal resistance and jt, the residual junction to ambient thermal resistance are obtained by simulating conditions described in jedec standard, jesd 15-8. junction board ambient device compact model jt jb
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 290 document id: pmc-2010883, issue 2 20 mechanical information the sbslite comes in a 15 x 15 x 1.81 mm 160 pbga (4 layer) package. figure 46 160 pin pbga 15 x 15 mm body seating plane c a a1 a2 side view b d d1 (4x) 0.20 a e1 e top view e j 1 2 3 4 5 6 7 8 9 10 11 12 13 14 a b c d e f g h j k l m n p b "d" dia. 3 places bottom view i notes: 1) all dimensions in millimeter. 2) dimension aaa denotes coplanarity. 3) dimension bbb denotes parallel. 1.60 1.81 2.02 1.40 1.61 1.80 0.30 0.40 0.50 0.80 0.85 0.90 15.00 12.50 13.00 13.70 15.00 12.50 13.00 13.70 1.00 1.00 0.50 0.36 0.56 1.00 0.15 0.35 0.40 0.60 0.30 0.40 0.50 0.62 a1 ball pad corner a1 ball pad indicator a1 ball pad corner 30 typ 45 chamfer 4 places
sbslite? telecom standard product data sheet preliminary proprietary and confidential to pmc-sierra, inc., and for its customers? internal use 291 document id: pmc-2010883, issue 2 notes

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