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a u9228 usb kvm controller t e c hnical r e f e r ence manual
AU9228 usb kvm controller
c c o o p p y y r r i i g g h h t t copyright ? 1997 - 2007. alcor micro, corp. all rights reserved. no part of this data sheet may be reproduced, transmitted, transcribed, stored in a retrieval system or translated into any language or computer l anguage, in any form or by any means, electronic, mechanical, magnetic, optical, chemical, manual or otherwise, without prior written permission from alcor micro, corp. t t r r a a d d e e m m a a r r k k a a c c k k n n o o w w l l e e d d g g e e m m e e n n t t s s the company and product names mentioned in this document may be the trademarks or registered trademarks of their manufacturers. d d i i s s c c l l a a i i m m e e r r a lcor micro, corp. reserves the right to change this product without prior notice. alcor micro, corp. makes no warranty for the use of its products and bears no responsibility for any error that appear in this document. specifications are subject to change without prior notice. r r e e v v i i s s i i o o n n h h i i s s t t o o r r y y date revision description july 2007 1.00w official release oct 2007 1.01w modify ?3.0 pin assignment? c c o o n n t t a a c c t t i i n n f f o o r r m m a a t t i i o o n n : : web site: http://www.alcormicro.com/ taiwan china shenzhen office alcor micro, corp. rm.2407-08, industrial bank building 4f, no 200 kang chien rd., nei hu, no.4013, shennan road, taipei, taiwan, r.o.c. shenzhen,china. 518026 phone: 886-2-8751-1984 phone: (0755) 8366-9039 fax: 886-2-2659-7723 fax: (0755) 8366-9101 santa clara office los angeles office 2901 tasman drive, suite 206 9070 rancho park court santa clara, ca 95054 rancho cucamonga, ca 91730 usa usa phone: (408) 845-9300 phone: (909) 483-8821 fax: (408) 845-9086 fax: (909) 944-0464

i table of contents 1. introduction ............................................................ 1 1.1 description ...................................................................................1 1.2 features ........................................................................................1 2. application block diagram ................................... 2 3. pin assignment ...................................................... 3 4. system architecture and reference design ....... 8 4.1 AU9228 block diagram ...............................................................8 5. hot key definition .................................................. 9 5.1 [scroll]++[scroll] mode ...............................................................9 5.2 [caps]++[caps] mode ..................................................................9 5.3 [num]++[num] mode ...................................................................10 5.4 [ctrl]+[shift] mode (left-hand side) ............................................10 6. electrical characteristics ...................................... 12 6.1 recommended operating conditions .......................................12 6.2 general dc characteristics ........................................................12 6.3 dc electrical characteris tics of 3.3v i/o cells ..........................12 6.4 crystal oscillator circui t setup for characterization ...............13 6.5 esd test results .........................................................................13 6.6 latch-up test results .................................................................14 7. mechanical information ......................................... 16 7. abbreviations ......................................................... 17
ii list of figures figure 2.1 block diagram ..................................................................2 figure 3.1 pin assignment diagram ................................................3 figure 4.1 AU9228 block diagram ...................................................8 figure 6.1 crystal oscillator circ uit setup for characterization ...13 figure 6.2 latch-up test circuits ....................................................15 figure 7.1 mechanical information diagram ...................................16 list of tables table 3.1 pin descriptions ................................................................4 table 6.1 recommended operating conditions .............................12 table 6.2 general dc characteristics ..............................................12 table 6.3 dc electrical characteristics of 3.3v i/o cells ...............12 table 6.4 esd data ............................................................................13 table 6.5 latch?up data ...................................................................15
AU9228 usb kvm controller v1.01w 1 1. introduction 1 1 . . 1 1 d d e e s s c c r r i i p p t t i i o o n n AU9228 is a highly integrated single chip usb kvm controller offering users the possibility of sharing keyboard, mouse and monitor among up to four pcs. not like traditional ps2 kvm devices, AU9228 uses usb as its upstream and downstream interface to support its driver-free and plug-n-play features, which allow users to easily install and use the kvm. typical application of AU9228 is under an environment, in which only one set of monitor, keyboard and mouse is availabl e. applying such kind of devices in a computing environment will not only result in a centralized control, but also reduce the power and space consumption. 1 1 . . 2 2 f f e e a a t t u u r r e e s s fully usb v1.1 specification compliant support usb bus power and device self power support up to 4 pcs via 4 usb upstream ports support usb downstream port 1 for usb keyboard support usb downstream port 2 for usb mouse support ps2 keyboard support both ?panel button? and ?hot key? to switch among pcs support ?auto-scan? mode for users to monitor pcs easily support audio beep when system switches support upstream port selected led indicators for each pc respectively support phantom keyboard to let user does not need to configure bios to turn on ?no halt on error? support 4 different sets of key sequence to switch among pcs (please see the key definition in the following) recalls ?caps lock?, ?num lock? and ?scroll lock? keys? status for each pc automatically output the monitor selection signals to the external video-switching circuits support 8-bit mcu interface to provide control from external mcu support serial mcu interface to pr ovide control from external mcu no need to install device driver under windows, macintosh, linux, freebsd and sun system
AU9228 us b kvm controller v1.01w 2 2. application block diagram t y pical application is in a computing environment where it demands a centralized control and sp ace & energy saving is critica l . figure 2.1 block diagram a u 9228 k v m monit or an d aud io swti ching box ( relay devi ce ) m o n ito r pc 2 pc 4 pc 3 pc 1 m o n ito r c a b l e us b ca b l e us b ca b l e m o ni t o r c a bl e s e le c tio n ( 6 x ) us b c a b l e u s b c a b le moni t o r c a bl e p o r t 1 po r t 2 m ous e k e yboa r d d e f a ul t but t on x 5 au to - s wtic h m o d e p s 2 k e yboa r d a udi o d e v i c e s
au922 8 usb kvm control l er v1.01 w 3 3. pin assignment the AU9228 is delivere d in 64pin l q fp form fa ctor . docu mented below is a figure shows signa l names of e a ch pin and a t able in th e following p age describes each p i n in more det ails. figure 3.1 pin assignment diagram a u 9228 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 17 1 8 19 20 21 22 23 24 25 26 27 28 29 3 0 31 32 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 up4 l ed n av cc a vss xtal1 xtal2 vcc5v bvcc b vss sw itch n a u d i os w i tchn bu s _ pw r d be ep gn d gn d s y s1bu ttonn s y s 2 b u tt on n s y s 3 b u tt on n s y s 4 b u tt on n do w n usb 2 _d p do w n usb 2 _d m do w n usb 1 _d p do w n usb 1 _d m vss vc c swi t chmode 0 swi t chmode 1 re se rve d p s 2_cl k p s 2_da t gp o 2 gp o 1 gp o 0 up u s b 1_d p up u s b 1_d m up u s b 2_d p up u s b 2_d m up u s b 3_d p up u s b 3_d m up u s b 4_d p up u s b 4_d m up 1 l edn up 2 l edn up 3 l edn monit o ren0 intn ale cs n rd n wrn extcpu mo d swi t c h mo de 2 re se rve d d0 d1 d2 d3 d4 d5 d6 d7 bvss monit o ren1 re se rve d re se rve d
AU9228 usb kvm controller v1.01w 4 table 3.1 pin descriptions pin # pin name i/o description 1 up4ledn o system 4 led indicator (0:on; 1:off) 2 avcc pwr 3.3v analog input power 3 avss pwr analog ground 4 xtal1 i 12 mhz crystal input 5 xtal2 o 12 mhz crystal output 6 vcc5v pwr 5.0v input power from usb port 7 bvcc pwr 3.3v output power from internal regulator 8 bvss pwr ground pin of internal regulator 9 switchn i button with internal pull-up for switching to next system (0: enable; 1: normal) 10 audioswitchn i audio on/off switch with internal pull-up (1: off; 0: on) 11 bus_pwrd i bus power selection (1: device self power; 0: bus power) 12 beep o audio output (4 khz frequency) when system switches 13 intn o interrupt signal output to external mcu when switchmode2='1' and extcpumod='1' (falling-edge triggered) 14 gnd ground 15 gnd ground 16 sys1buttonn i panel button with internal pull-up for enabling system 1 (0: enable; 1: normal) 17 ale i when not using external parallel mcu, it should be pulled down. address latch enable when switchmode2='1' and extcpumod='1' (1: ad bus is address; 0: ad bus is data) 18 sys2buttonn i panel button with internal pull-up for enabling system 2 (0: enable; 1: normal) 19 sys3buttonn i panel button with internal pull-up for enabling system 3 (0: enable; 1: normal) 20 sys4buttonn i panel button with internal pull-up for enabling system 4 (0: enable; 1: normal) 21 csn i chip enable for the mcu interface when switchmode2='1' and extcpumod='1' (0: enable) 22 rdn i read strobe for the mcu interface when switchmode2='1' and extcpumod='1' (0: enable) 23 downusb2_dp i/o downport2 dp
AU9228 usb kvm controller v1.01w 5 pin # pin name i/o description 24 downusb2_dm i/o downport2 dm 25 downusb1_dp i/o downport1 dp 26 downusb1_dm i/o downport1 dm 27 wrn i read strobe for the mcu interface when switchmode2='1' and extcpumod ='1' (0: enable; 1: normal) 28 extcpumod i external mcu mode selection (1: parallel; 0: serial). serial is the default mode. 29 vss pwr digital ground 30 vcc pwr 3.3v digital input power 31 switchmode0 i 32 switchmode1 i switch mode selection (sw0, sw1) for internal hotkey mode when switchmode2='0' and d2='0', it?s defined as: (0, 0): [scroll][scroll] mode (default) (0, 1): [caps lock][caps lock] mode (1, 0): [num lock][num lock] mode (1, 1): [c trl ][s hift ] mode (left-hand side) 33 switchmode2 i enable external mcu mode (1: enable; 0: disable). disable is the default setting. 34 reserved reserved 35 reserved reserved 36 ps2_clk i/o ps2 clock signal (external pull-up required) 37 ps2_dat i/o ps2 data signal (external pull-up required) 38 d0 i/o bit 0 with internal pull-up in address/data bus of mcu interface when switchmode2='1' and extcpumod='1'. it also provides alternative functions: i2c bus sda signal (slave mode) when switchmode2='1' and extcpumod='0' i2c bus sda signal (master mode) when switchmode2='0' and d2='1' 39 d1 i/o bit 1 with internal pull-up in address/data bus of mcu interface when switchmode2='1' and extcpumod='1'. it also provides alternative functions: i2c bus scl signal (slave mode) when switchmode2='1' and extcpumod='0' i2c bus scl signal (master mode) when switchmode2='0' and d2='1' 40 d2 i/o bit 2 with internal pull-down in address/data bus of mcu interface when switchmode2='1' and extcpumod='1'. it also provides alternative functions: i2c bus address 0 (slave mode) when switchmode2='1' and extcpumod='0' i2c bus master mode enable bit when switchmode2='0'
AU9228 usb kvm controller v1.01w 6 pin # pin name i/o description 41 gpo2 o general purpose output pin 2 42 gpo1 o general purpose output pin 1 43 gpo0 o general purpose output pin 0 44 reserved reserved 45 reserved reserved 46 monitoren0 o 47 monitoren1 o monitor selection (mon0, mon1): (0, 0) : monitor 1 select (1, 0) : monitor 2 select (0, 1) : monitor 3 select (1, 1) : monitor 4 select 48 d3 i/o bit 3 with internal pull-down in address/data bus of mcu interface when switchmode2='1' and extcpumod='1'. it also provides alternative function: i2c bus address 1 (slave mode) when switchmode2='1' and extcpumod='0' 49 d4 i/o bit 4 with internal pull-down in address/data bus of mcu interface when switchmode2='1' and extcpumod='1'. it also provides alternative function: i2c bus address 2 (slave mode) when switchmode2='1' and extcpumod='0' 50 d5 i/o bit 5 with internal pull-down in address/data bus of mcu interface when switchmode2='1' and extcpumod='1' 51 d6 i/o bit 6 with internal pull-down in address/data bus of mcu interface when switchmode2='1' and extcpumod='1' 52 d7 i/o bit 5 with internal pull-down in address/data bus of mcu interface when switchmode2='1' and extcpumod='1' 53 upusb1_dp i/o upstream port 1 dp 54 upusb1_dm i/o upstream port 1 dm 55 upusb2_dp i/o upstream port 2 dp 56 upusb2_dm i/o upstream port 2 dm 57 upusb3_dp i/o upstream port 3 dp 58 upusb3_dm i/o upstream port 3 dm 59 upusb4_dp i/o upstream port 4 dp 60 upusb4_dm i/o upstream port 4 dm 61 up1ledn o system 1 led indicator (0:on; 1:off) 62 up2ledn o system 2 led indicator (0:on; 1:off)
AU9228 usb kvm controller v1.01w 7 pin # pin name i/o description 63 up3ledn o system 3 led indicator (0:on; 1:off) 64 bvss pwr ground pin of internal regulator
4. system architecture and reference design 4 4 . . 1 1 a a u u 9 9 2 2 2 2 8 8 b b l l o o c c k k d d i i a a g g r r a a m m figure 4.1 AU9228 block dia g ram us b prot oc ol en g i n e do w n s t r e a m po r t ho s t 1 us b pro t oc ol en g i n e do w n str e a m po r t ho s t 2 us b pr ot oc ol en g i ne do w n s t r e a m po r t ho s t 3 us b pr ot oc o l en g i n e do w n s t r e a m por t ho s t 4 do w n s t r e a m por t d a t a m u lti p le xo r do w n s t r e a m po r t d a t a che c k e r sw i t c h de te c t i o n p o rt 1 : u s b k e y b o a rd ; p o rt 2 : u s b m o u s e ; p s 2 p o rt : p s 2 k e y b o a rd AU9228 us b kvm controller v1.01w 8
5. hot key definition AU9228 support s 4 set s of ?hot key? to help user s to switch pc, rapidly and easily , via hot key sequence defin ed using ke yp ads on the lef t hand side of a keyboard. 5 5 . . 1 1 [ [ s s c c r r o o l l l l ] ] + + + + [ [ s s c c r r o o l l l l ] ] m m o o d d e e hot key definiti on [scroll] ++ [ s croll] + 1 ( note1) switch to pc1 [scroll] ++ [ s croll] + 2 switch to pc2 [scroll] ++ [ s croll] + 3 switch to pc3 [scroll] ++ [ s croll] + 4 switch to pc4 [scroll] ++ [ s croll] + or switch to next pc [scroll] ++ [ s croll] + or switch to previous pc [scroll] ++ [ s croll] + b beeper on/ o ff (note2) [scroll] ++ [ s croll] + s auto-scan mode every 10 second. ([esc] switch to regular key code) [scroll] ++ [ s croll] + s + n set auto-scan rate (note3) . ([esc) switch to regular key code) [scroll]++[scroll]+f1~f 8 customer d e fine key (note4) . [scroll]++[scroll]+[cap s ] switch to [cap s]++[cap s ] hot key mode [scroll]++[scroll]+[num] switch to [num]++[nu m] hot key mo de [scroll]++[scroll]+[ctrl] switch to [ctrl]+[shif t] hot key mode 5 5 . . 2 2 [ [ c c a a p p s s ] ] + + + + [ [ c c a a p p s s ] ] m m o o d d e e hot key definiti on [cap s]++[cap s ]+1 switch to pc1 [cap s]++[cap s ]+2 switch to pc2 [cap s] ++ [cap s] + 3 switch to pc3 [cap s] ++ [cap s] + 4 switch to pc4 [cap s]++[cap s ]+ or switch to next pc [cap s]++[cap s ]+ or switch to previous pc [cap s]++[cap s ] + b b e e p e r on/ o f f (note2) [cap s]++[cap s ]+s auto-scan mode every 10 seco nd. ([esc] switch to regular key code) [cap s]++[cap s ]+s + n set auto-scan rate (not e3) . ([esc] switch to re gular key code) [cap s]++[cap s ]+f1~f8 customer d e fine key (note4) [cap s]++[cap s ]+[scroll] switch to [scroll]++[scr o ll] hot key mode [cap s]++[cap s ]+[num] switch to [num]++[nu m] hot key mo de [cap s]++[cap s ]+[ctrl] switch to [ctrl]+[shif t] hot key mode au922 8 usb kvm control l er v1.01 w 9
5 5 . . 3 3 [ [ n n u u m m ] ] + + + + [ [ n n u u m m ] ] m m o o d d e e hot key definiti on [num]++[nu m]+1 switch to pc1 [num]++[nu m]+2 switch to pc2 [num] ++ [num] + 3 switch to pc3 [num] ++ [num] + 4 switch to pc4 [num]++[nu m]+ or switch to next pc [num]++[nu m]+ or switch to previous pc [num]++[nu m ] + b b e e p e r on/ o f f (note2) [num]++[nu m]+s auto-scan mode every 10 seco nd. ([esc] switch to regular key code) [num]++[nu m]+s + n set auto-scan rate (not e3) . ([esc] switch to re gular key code) [num]++[nu m]+f1~f8 customer d e fine key (note4) [num]++[nu m]+[scroll] switch to [scroll]++[scr o ll] hot key mode [num]++[nu m]+[cap s ] switch to [cap s]++[cap s ] hot key mode [num]++[nu m]+[ctrl] switch to [ctrl]+[shif t] hot key mode 5 5 . . 4 4 [ [ c c t t r r l l ] ] + + [ [ s s h h i i f f t t ] ] m m o o d d e e ( ( l l e e f f t t - - h h a a n n d d s s i i d d e e ) ) hot key definiti on [ctrl]++[ctrl] switch to next live pc [ctrl + shif t + 1] switch to pc1 [ctrl + shif t + 2] switch to pc2 [ctrl + shif t + 3] switch to pc3 [ctrl + shif t + 4] switch to pc4 [ctrl + shif t + or ] switch to next pc [ctrl + shif t + or ] switch to previous pc [ctrl + shif t + b] beeper on/ o ff (note2) [ctrl + shif t + s] auto-scan mode every 10 seco nd. ([esc] switch to regular key code) [ctrl + shif t + s + n] set auto-scan rate (not e3) . ([esc] switch to re gular key code) [ctrl + shif t + f1~f8] customer d e fine key (note4) [ctrl + shif t + scroll] switch to [scroll]++[scr o ll] hot key mode [ctrl + shif t + cap s ] switch to [cap s]++[cap s ] hot key mode [ctrl + shif t + num] switch to [num]++[nu m] hot key mo de note 1: ?++? means press key rapidly , ?[scroll]++[ scroll]+1? means press ? s croll? twice rapidly and then pr ess ?1?. if sy stem receives ?scroll + + scroll? co mmand onl y , system will reset the buf f e r when it does not rece ive any input comes af ter within a defined inter v al of time (say , 5 seconds). AU9228 us b kvm controller v1.01w 10
note 2: audible feedback when beeper is on and keep the device in silent mode when beeper is off . note 3: n = number from 1 to 9, each represent s 5 second s? interval late ncy to 60 seconds cor r espondingly . auto-scan r a te set n nu mb er second 1 5 2 1 0 3 1 5 4 2 0 5 2 5 6 3 0 7 3 5 8 4 0 9 6 0 note 4: gpo 2 gpo 1 gpo 0 function ke y +f1 0 0 0 function ke y +f2 0 0 1 function ke y +f3 0 1 0 function ke y +f4 0 1 1 function ke y +f5 1 0 0 function ke y +f6 1 0 1 function ke y +f7 1 1 0 function ke y +f8 1 1 1 au922 8 usb kvm control l er v1.01 w 11
6. electrical characteristics 6 6 . . 1 1 reco mmended oper at ing conditions table 6.1 recommended operating conditions symbol parameter min typ max units v cc power supp ly 4.75 5 5.25 v v in input v o lt age 0 vcc v t orp operating t e mperature 0 85 oc t stg s t orage t e mperature -40 125 oc 6 6 . . 2 2 g g e e n n e e r r a a l l d d c c c c h h a a r r a a c c t t e e r r i i s s t t i i c c s s table 6.2 general d c characteristics symbol parameter conditi o ns min typ max units i il input low cu rrent no pull-up or p ull-down -1 1 a i ih input high current no pull-up or p ull-down -1 1 a o z t r i-st ate lea k age current -10 10 a c in input cap a cit ance 5 f c out output cap a cit ance 5 f c bid bi-directiona l buf fer ca p acit ance 5 f 6 6 . . 3 3 d d c c e e l l e e c c t t r r i i c c a a l l c c h h a a r r a a c c t t e e r r i i s s t t i i c c s s o o f f 3 3 . . 3 3 v v i i / / o o c c e e l l l l s s table 6.3 dc electrical charac teristics of 3.3v i/o cells limits symbol parameter conditi o ns min typ max unit v il input low v o lt age cmos 0.9 v v ih input hight v o lt age cmos 2.3 v v ol output low volt age iol=4ma, 1 6 ma 0.4 v v oh output high volt age i o h = 4m a , 16 m a 2.4 v r i input pull-u p /down resist ance v il=0v or vi h = v c c 10k/20 0k k ? AU9228 us b kvm controller v1.01w 12
6 6 . . 4 4 c c r r y y s s t t a a l l o o s s c c i i l l l l a a t t o o r r c c i i r r c c u u i i t t s s e e t t u u p p f f o o r r c c h h a a r r a a c c t t e e r r i i z z a a t t i i o o n n the followin g setup was used to measure the op en loop volt age gain for cryst a l oscillator cir c uit s . the feedback re sistor serve s to bias the circuit a t it s quiescent operating po int and the a c coupling cap a citor , cs, is much lar ger than c1 and c2. figure 6.1 crystal oscillator ci rcuit setup for characterization 6 6 . . 5 5 e e s s d d t t e e s s t t r r e e s s u u l l t t s s t est descri p tion: esd t e sting was performed on a zapmaster system using the human-bod y ?model (hbm) and ma chine-model (mm), acco rding to mil_std 883 and eiaj ic_121 respectively . human-bod y -model stre ss devices b y sudden application o f a high volt age supplied by a 100 pf cap a citor throu gh 1.5 kohm resist ance. machine-mo del stresses devices by sudden application of a high volt age supplied by a 200 pf cap a citor throu gh very low (0 ohm) resist ance t est circuit & condition zap interval : 1 second number of z a p s : 3 posit ive and 3 negative at room temperat ure critera : i-v curve t r acing table 6.4 esd data model model s/s target results hbm vdd, vss, i/ c 15 2000v tbd mm vdd, vss, i/ c 15 200v tbd au922 8 usb kvm control l er v1.01 w 13
6 6 . . 6 6 l l a a t t c c h h - - u u p p t t e e s s t t r r e e s s u u l l t t s s t est descri p tion: latch -up testing was performed at room ambient using an imcs-4600 system which applies a stepped vo lt age to one p i n per device with all other pins o pen except vdd and vss which were biased to 5 v o lt s and ground respectively . t e sting was st arted at 5.0 v (positive) or 0 v(negative), and the dut wa s biased for 0.5 seconds. if neither the put current supply nor the device current supply reached the predefine d limit (dut=0 ma , icc=100 ma), the n the volt age was incre a sed by 0.1 v o lt s and th e pin was test ed again. this proced ure was recommended by the jedec jc-40.2 cmos logic st andardizat i on committee. notes: 1. dut : device under t e st. 2. put : pin under t e st. icc measure m ent pi n under test + vcc dut gnd m untested output ope n ci rcui t untested input tied to v supply t r igger source v supply pi n under test 1 source + t est circuit : positive input/ output overvolt a ge /overcurrent AU9228 us b kvm controller v1.01w 14
vc c dut gnd pi n un der te s t ma un t e s t e d ou t p u t o p e n ci r c u i t un t e s t e d in p u t t i e d to v su p p ly tr i g g e r sou r ce v s u p p l y + + i c c m eas u r em en t 1 s o ur ce t est circuit: negative input /outpu t overvolt a ge/overcurrent vcc dut gnd ma unt e st e d out put ope n cir c uit all input tied to v supply v supply + icc m e as ureme n t suppl y volt age t est figure 6.2 latch-up test circuits model model voltage (v)/ current (ma) s/s results + v o lt age - 11 . 0 11 . 0 5 t b d + current - 200 200 5 t b d v d d - v x x 9 . 0 5 t b d table 6.5 latch?up data au922 8 usb kvm control l er v1.01 w 15
7. mechanical information figure 7.1 mechanical information diagram e1 e d d1 b e c1 a2 a l1 l 0. 25 gau g e pla n e s eat i n g pl ane a1 s y mb ol s min. max . a -- 1 . 6 0 a1 0.05 0 . 1 5 a2 1.35 1 . 4 5 b 0.17 0 . 2 7 c1 0.09 0 . 1 6 d 12.0 0 bsc d1 10.0 0 bsc e 12.0 0 bsc e 1 10.0 0 bsc e 0. 50 b s c l 0.45 0 . 7 5 l1 1.00 re f 1. j e dec out l in e: m s -02 6 bc d 2 . di mens io ns d 1 an d e 1 d o no t in c l u d e m o ld p r o t ru s i on . all o w a b l e pro t rus i o n i s 0.25 mm per s i de . d 1 a n d e1 a r e ma xi mu m p l a s t i c bo d y s i z e d i m e ns io ns in c l u d in g m o l d mis m a t c h . 3 . di mens io n b d o e s n o t i n cl ud e da m b a r p r o t rusi on. all o w a b l e d a mbar pro t r u s i o n sh ea l l no t cause t h e l e ad wid t h t o ex c e ed t h e ma x i mu m b d i m e ns i o n b y m o r e th a n 0. 0 8 mm. AU9228 us b kvm controller v1.01w 16
7. abbreviations in this chap ter some of the terms and abbreviations used throughout the technical reference manual are listed as follow s . sie serial interf ace engine utmi usb t r ansceiv er m a crocell interfa c e about alcor micro, corp. alcor micro, corp. designs, develo p s and market s highly integrated a nd advanced peripheral semiconduct o r , and sof t ware driver solution s f o r the personal computer and consu m er electronics market s worldwide. w e spe c ia lize in usb solution s a nd focus on emerging technology such as usb and ieee 1394. the comp an y of fers a range of semiconductors including controllers fo r usb hub, integrated keyboard/usb hub and usb flash memory card reader?etc. alcor micro, corp. is ba sed in t a ipe i , t a iwan, wit h sales of fices in t a ip ei, jap an, korea and california. alcor micro is distinguishe d by it s ability to provide i nnovative solution s f o r spec-driv en product s . innovations like sing le chip solutions for traditional multiple chip p r oduct s and on-board vo lt age regulators enable the comp an y to provide cost-ef f icien c y solutions for the computer periphe ral device oem custome r s worldwide. au922 8 usb kvm control l er v1.01 w 17

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