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| PMC-Sierra,Inc. PM7323 RCMP-200 * Policing done according to the Virtual Scheduling Algorithm (equivalent to Continuous-State Leaky Bucket Algorithm). * Two instantiations of policing per VC. Bellcore TR-1248 and Bellcore GR1113- CORE. Automatic OAM handling includes: reception and generation of AIS and RDI cells. OAM cell identification/tagging provided to enable direct extraction by egress device, eliminating delays through switch core. Incoming OAM cells are terminated, passed to device output or microprocessor. Outgoing OAM cells sourced from automatic OAM generating circuitry, device input, or microprocessor. Generates backward reporting cells. ATM Layer Cell Routing Control, Monitoring, and Policing 200 Mbit/s FEATURES * Monolithic single-chip device that handles ATM switch ingress VPI/VCI address translation, cell appending, cell rate policing, counting, and OAM requirements for 65,536 Virtual Circuits (VCs). * Instantaneous transfer rate of 200 Mbits supports a cell transfer rate of 0.355 x 106 cells/s. * 8-bit PHY interface using direct addressing for up to four PHYs (UTOPIA Level 1) and Multi-PHY addressing for up to 32 PHYs (UTOPIA Level 2). * 8-bit SCI-PHYTM+ (53 - 64 byte extended ATM cell with prepend/ postpend) interface at output to switch fabric. * Software compatibility with PM7322 RCMP-800. * Compatible with wide range of switching fabrics and traffic management architectures, including per-VC or per-PHY queuing. * Provides identification/tagging of RM cells to support adjunct processing applications such as Virtual Source/ Virtual Destination (VS/VD) Available Bit Rate (ABR) service. * Extremely flexible CAM-type cell identification that uses arbitrary VPI/ VCI values and/or appended bytes for identification. * Drops on command al low priority (CLP=1) cells to relieve switch congestion. * Includes16-bit FIFO-buffered microprocessor bus interface for cell extraction and insertion (including OAM), VC table access, control and status monitoring, and configuration of the IC. * Supports DMA access for cell extraction and insertion. * Low power, 0.6 micron, +5 V CMOS technology. * 240 Plastic Quad Flat Pack (PQFP). * CELL COUNTING * Per-VC counts maintained for low priority cells, high priority cells, cells discarded due to policing/congestion, and cells with a reduced priority. * Per-device counts maintained include: total cells input, total cells output, OAM cells, cells discarded due to congestion, corrupted OAM cells, and unassigned/invalid VPI/VCIs. * Per-VC performance monitoring counts maintained include: lost cells, misinserted cells, BIP-16 errors, and Severely Errored Cell Blocks (SECB). * * * * APPLICATIONS * ATM Access Switches and Multiplexers * ATM Enterprise and Edge Switches OAM HANDLING AND PERFORMANCE MONITORING * VC OAM performance monitoring per ITU Recommendation I.610, BLOCK DIAGRAM d ) ( b 6 T UA@rhyAS6H A d d ) 7 ( ) T " # b X 9 b S 6 9Q T T TT P 9 U D 9 U F 8 U T H U 7 U T S U B I P 8 7 @ P T 7 T V 7 EU6B UrA6pprA Q @rhyA S6HA 6qqrA Gx A8ryy Qpr AHvpprA S6H 6ivhv TT8GF P96Ub&)d PASU r p h s r D A C Q D 8 T D96Ub&)d PTP8 DQSU DTP8 PA8GF P86 DAG8F D6W6GD9D86b#d D699Sb#)"dD86b")!d D86b d DA ADAP PA ADAP PS9@I7 PUT@I y y r p A H U 6 A q r q r h D699Sb!)dDXS@I7b#)!d DXS@I7b d DQPGG A ! A A A y r r G A r p h s r D 6yyA7ypx POLICING * Policing performed for adherence to: Peak Cell Rate (PCR), Sustained Cell Rate (SCR), and burst tolerance (BT). Violating cells can be noted, dropped, or have CLP bits set to1. h v V PI@T@8 Hvppr Drshpr Hvp 8ryy 7ssr d ) $ b 9 d ) % b 6 @ G 6 7 T 8 7 S X 7 9 S 7 U T S 7 U I D R @ S 9 PMC-960209 (R3) (c)A1998 PMC-Sierra, Inc. September, 1998 PM7323 RCMP-200 ATM Layer Cell Routing Control, Monitoring, and Policing 200 Mbit/s TYPICAL APPLICATIONS MULTI-PHY T3/E3 (45/34 Mbit/s) SWITCH PORT Physical Layer ATM Layer Switch Fabric T3/E3 PMD PM7346 T3/E3 PMD SATURN Quad User Network Interface for J2/E3/T3 681,4-(7 TM TM PM7323 5&03 ATM Layer Cell Routing, Control, Monitoring, and Policing 200 Mbit/s T3/E3 PMD Egress Device T3/E3 PMD MULTI-PHY T1/E1 (1.5/2.0 Mbit/s) SWITCH PORT Physical Layer PM4314 4'6; ATM Layer Switch Fabric PM7344 681,03+ TM Quad T1/E1 LIU #1 Quad T1/E1 Multi-PHY SATURNTM UNI #1 PM7323 5&03 ATM Layer Cell Routing, Control, Monitoring, and Policing 200 Mbit/s PM4314 4'6; PM7344 681,03+ TM Egress Device Quad T1/E1 LIU #8 Quad T1/E1 Multi-PHY SATURNTM UNI #8 Head Office: PMC-Sierra, Inc. #105 - 8555 Baxter Place Burnaby, B.C. V5A 4V7 Canada Tel: 604.415.6000 Fax: 604.415.6200 To order documentation, send email to: document@pmc-sierra.com or contact the head office, Attn: Document Coordinator All product documentation is available on our web site at: http://www.pmc-sierra.com For corporate information, send email to: info@pmc-sierra.com PMC-960209 (R3) (c) 1998 PMC-Sierra, Inc. September, 1998 SATURN, SCI-PHY, and S/UNI-MPH are trademarks of PMC-Sierra, Inc. |
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