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1 d d a a t t a a b b o o o o k k AU9223 usb kvm controller technical reference manual p p r r o o d d u u c c t t s s p p e e c c i i f f i i c c a a t t i i o o n n official release revision 1.00 public nov. 2005
page 2 of 21 AU9223 usb kvm controller v1.00 official release_ public data sheet status objective specification this data sheet contains target or goal specifications for product development. preliminary specification t his data sheet contains preliminary data; supplementary data may be published later. product specification this data sheet contains final product specifications. revision history date revision description nov. 2005 1.00 official release
p a g e 3 of 21 a u 9223 u s b k vm con t r o l l e r v1 . 00 o ff i c ia l rel e ase_ p u blic copyr i ght notice copyr i ght 1 998 - 200 5 a lco r m ic r o co r p . a ll r i g h t s r eserved . tra d e m ark a c k n ow le dg e m e n t s the comp a n y a n d pro d uct names ment i o ned i n t h i s doc u ment m a y b e the t r ademarks or reg i stered t r ad emarks of t he i r manufac t urers. disclaime r a l cor m i cro cor p . reserves t h e r i g h t to c h a n ge th i s produ c t w i th o u t pr i o r not i ce. a lco r m ic r o co r p . ma k e s no w a r r a nt y f o r the use of its pr o duct s an d b e ars no re sponsibility f o r a n y e r r o r th a t a pp ear in t h is doc u m e n t . s peci f ic a t io n s a re s u bjec t to ch a n ge w i thout pr i o r not i ce
page 4 of 21 AU9223 usb kvm controller v1.00 official release_ public 5.3 [ctrl]+[alt] mode table of contents 1 introduction ?????????????? ?????????? 6 1.1 description ??????????????? ??????????????? 6 1.2 features ???????????????????? ???????????.. 6 2 application block diagram ????????????????. 7 3 pin assignment ??????????????????????. 8 4 system architecture and reference design ???????.. 11 4.1 AU9223 block diagram ????????????????? ?????.. 11 5 hot key definition ????????????????????.. 12 5.1 [scroll]++[scroll] mode ????????????? ????????.. 12 5.2 [caps]++[caps] mode ????????????? ?????????.. 12 5.3 [num]++[num] mode ??????????? ???????????? 13 5.4 [ctrl]+[shift] mode ?????????????? ??????????? 13 6 electrical characteristics ????????????????? 16 6.1 recommended operating conditions ??????????????. 16 6.2 general dc characteristics ???????????????????? 16 6.3 dc electrical characteristics for 3.3 volts operation ????? 16 6.4 crystal oscillator circuit setup for characterization ?????. 17 6.5 esd test results ????????????????? ????????..? 17 6.6 latch-up test results ????????????????? ??????.. 18 7 mechanical information ?????????????????? 20
page 5 of 21 AU9223 usb kvm controller v1.00 official release_ public list of figures 2.1 block diagram ??????????????????? ????????????.. 7 3.1 pin assignment diagram ??????????????? ??????????.. 8 4.1 AU9223 block diagram ???????????????? ??????????? 11 6.1 crystal oscillator circuit setup for characterization ?????????.. 17 6.2 latch-up test results ????????????????? ??????????.. 18 7.1 mechanical information diagram ????????????? ???????.. 20 list of tables 3.1 pin descriptions ?????????????????? ???????????. 9 6.1 recommended operating conditions ..????????????????. 16 6.2 general dc characteristics ????????????????? ?????.. 16 6.3 dc electrical characteristics for 3.3 volts operation ???????.. 16 6.4 esd data ???????????????? ?????????????????.. 17 6.5 latch-up test results ????????????????? ?????????. 19
page 6 of 21 AU9223 usb kvm controller v1.00 official release_ public 1.0 introduction 1.1 description AU9223 is a highly integrated single chip usb kvm controller offering users the possibility of sharing keyboard, mouse and monitor between two pc. not like traditional ps2 kvm devices, AU9223 uses usb as its upstre am 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 AU9223 is under an environment, in whic h only one set of monitor, keyboard and mouse is available. 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. 1.2 features ? support usb v1.1 specification ? support usb bus power and device self power. ? no need to install device driver under windows, macintosh and linux operating system ? support 2 pc: 2 usb upstream ports and three downstream ports for keyboard & mouse and one spare port. ? support ps2 keyboard. ? support ?push button? on kvm device to switch between pc ? support ?auto-scan? mode ? support audio feedback when system switch. ? support upstream port selected led in dicators for each pc respectively. ? support phantom keyboard features to let user does not need to configure bios to turn on ?no halt on error?. ? support 4 different modes of key sequence to let users to switch between two pc easily using hot key defined on left side of keyboard. (please see the key definition in the following.) ? users could use hot key for switching to any one of hot key combinations out of 4 pre-defined hot keys. ? system does not need to redo keyboard and mouse detection again after the first time machine switching using kvm. ? recalls ?caps lock?, ?num lock? and ?scroll lock? keys? status for each pc automatically. ? AU9223 will output a monitor select sign al to the external video -switching circuit.
page 7 of 21 AU9223 usb kvm controller v1.00 official release_ public 2.0 application block diagram typical application is in a computing environment where it demands a centralized control and space & energy saving is critical. figure 2.1 AU9223 application block diagram AU9223 kvm port 1 port 2 monitor swtiching box (relay device) monitor pc 2 pc 1 mouse keyboard monitor cable usb cable usb cable monitor cable selection (2x) default button x 1 auto-swtich mode
page 8 of 21 AU9223 usb kvm controller v1.00 official release_ public 3.0 pin assignment figure 3.1 pin assignment diagram 1 2 3 5 4 6 7 8 10 9 11 33 32 31 29 30 34 46 45 44 43 42 12 35 36 28 27 26 25 41 40 39 38 37 47 48 13 14 15 16 17 18 19 20 21 22 23 24 avcc avss xtal1 xtal2 vcc5v bvcc bvss switchn i oswitchn bus_pwrd beep d p4_pwrup vcc switchmode0 switchmode1 virtual_kbd_port2 ps2_clk/no connecti o ps2_dat/no connecti o reserved reserved gpo1 gpo0 reserved gpo2 alcor micro AU9223 48pin lqfp vss downusb2_dm downusb2_dp downusb1_dm virtual_kbd_port 1 downusb1_dp dp2_pwrup sys2buttonn downusb4_dp sys1buttonn dp1_pwrup downusb4_dm o nitor1en o nitor2en reserved p ort2detect p ort1detect pusb1_dp p usb1_dm pusb2_dp p usb2_dm up1ledn nc up2ledn
page 9 of 21 AU9223 usb kvm controller v1.00 official release_ public table 3.1 pin descriptions pin no. pin name i/o type description 1 avcc pwr provides 3.3v analog input power to silicon; connects to bvcc; 2 avss pwr ground pin of avcc power plane 3 xtal1 i 12 mhz crystal input 4 xtal2 o 12 mhz crystal output 5 vcc5v pwr 5v input power from usb port 6 bvcc pwr provides 3.3v analog output power from internal regulator 7 bvss pwr ground pin of bvcc power plane 8 switchn i push button for switching to next system (0: enable; 1: normal) 9 audioswitchn i audio on/off switch (1: off; 0: on) 10 bus_pwrd i bus power selection (1: device self power; 0: bus power) 11 beep o audio output (4khz frequency) when system switches 12 dp4_pwrup o power up for downport4 13 downusb4_dp i/o downport4 dp 14 downusb4_dm i/o downport4 dm 15 sys1buttonn i system1 enable (0: enable ; 1: normal) 16 sys2buttonn i system2 enable (0: enable ; 1: normal) 17 dp2_pwrup o power up for downport2 18 dp1_pwrup o power up for downport1 19 downusb2_dp i/o downport2 dp 20 downusb2_dm i/o downport2 dm 21 downusb1_dp i/o downport1 dp 22 downusb1_dm i/o downport1 dm 23 virtual_kbd_port1 i control virtual keyboard port1 (0: enable; 1: disable) 24 vss pwr ground pin for vcc power plane 25 vcc pwr 3.3 v input power; connects to bvcc 26 switchmode0 i 27 switchmode1 i switch mode selection: (sw0, sw1) (0,0): [scroll][scroll] mode (0,1): [capslock][capslock] mode (1,0): [numlock][numlock] mode (1,1): [ctrl][shift] mode (left hand side) 28 virtual_kbd_port2 i control virtual keyboard port2 (0: enable; 1: disable) 29 ps2_clk/no connection i ps2 clock output; no connection if only support usb keyboard 30 ps2_dat/no connection i ps2 data output; no connection if only support usb keyboard 31 reserved connect to ground; reserved for system use 32 reserved connect to ground; reserved for system use
page 10 of 21 AU9223 usb kvm controller v1.00 official release_ public pin no. pin name i/o type description 33 reserved reserved for system use. please see reference circuit schematics for suggested connection 34 gpo2 o general purpose output pin2 35 gpo1 o general purpose output pin1 36 gpo0 o general purpose output pin0 37 monitor1en o monitor 1 enab le (0: enable; 1: disable) 38 monitor2en o monitor 2 enab le (0: enable; 1: disable) 39 reserved connect to ground; reserved for system use 40 port2detect i connect to upstream port 2's vcc 41 port1detect i connect to upstream port 1's vcc 42 upusb1_dp i/o upstream port 1 dp 43 upusb1_dm i/o upstream port 1 dm 44 upusb2_dp i/o upstream port 2 dp 45 upusb2_dm i/o upstream port 2 dm 46 up1ledn o system 1 led indicator 47 up2ledn o system 2 led indicator 48 nc no connection required
page 11 of 21 AU9223 usb kvm controller v1.00 official release_ public 4.0 system architecture and reference design 4.1 AU9223 block diagram figure 4.1 AU9223 block diagram usb protocol engine usb protocol engine downstrea m port data check downstream port control downstream port control downstream port data mux port 4 port 4 port 1 , 2 , 3 host 1 host 2 switch detection
page 12 of 21 AU9223 usb kvm controller v1.00 official release_ public 5.0 hot key definition AU9223 supports 4 level of ?hot key? mode to help users to switch pc, rapidly and easily, via hot key sequence defined usin g keypads on the left hand side of a keyboard. 5.1 [scroll]++[scroll] mode hot key definition [scroll] ++ [scroll] + 1 (note1) switch to pc1 [scroll] ++ [scroll] + 2 switch to pc2 [scroll] ++ [scroll] + or switch to next pc [scroll] ++ [scroll] + or switch to previous pc [scroll] ++ [scroll] + b beeper on/off (note2) [scroll] ++ [scroll] + s auto-scan mode every 10 second. (?esc? switch to regular key code.) [scroll] ++ [scroll] + s + n set auto-scan rate (note3). (?esc? switch to regular key code) [scroll]++[scroll]+f1~f8 customer define key (note4). [scroll]++[scroll]+[caps] switch to [caps]++[caps] hot key mode [scroll]++[scroll]+[num] switch to [num]++[num] hot key mode [scroll]++[scroll]+[ctrl] switch to [ctrl]+[shift] hot key mode 5.2 [caps]++[caps] mode hot key definition [caps]++[caps]+1 switch to pc1 [caps]++[caps]+2 switch to pc2 [caps]++[caps]+ or switch to next pc [caps]++[caps]+ or switch to previous pc [caps]++[caps]+b beeper on/off (note2) [caps]++[caps]+s auto-scan mode every 10 second. [caps]++[caps]+s + n set auto-scan rate (note3) [caps]++[caps]+f1~f8 customer define key (note4) [caps]++[caps]+[scroll] switch to [scroll]++[scroll] hot key mode [caps]++[caps]+[num] switch to [num]++[num] hot key mode [caps]++[caps]+[ctrl] switch to [ctrl]+[shift] hot key mode
page 13 of 21 AU9223 usb kvm controller v1.00 official release_ public 5.3 [num]++[num] mode hot key definition [num]++[num]+1 switch to pc1 [num]++[num]+2 switch to pc2 [num]++[num]+ or switch to next pc [num]++[num]+ or switch to previous pc [num]++[num]+b beeper on/off (note2) [num]++[num]+s auto-scan mode every 10 se cond. (?esc? switch to regular key code.) [num]++[num]+s + n set auto-scan rate (note3) (?esc? switch to regular key code) [num]++[num]+f1~f8 customer define key (note4) [num]++[num]+[scroll] switch to [scroll]++[scroll] hot key mode [num]++[num]+[caps] switch to [caps]++[caps] hot key mode [num]++[num]+[ctrl] switch to [ctrl]+[shift] hot key mode 5.4 [ctrl]+[shift] mode hot key definition [ctrl]++[ctrl] switch to next live pc [ctrl + shift + 1] switch to pc1 [ctrl + shift + 2] switch to pc2 [ctrl + shift + or ] switch to next pc [ctrl + shift + or ] switch to previous pc [ctrl + shift + b] beeper on/off (note2) [ctrl + shift + s] auto-scan mode every 10 se cond. (?esc? switch to regular key code.) [ctrl + shift + s + n] set auto-scan rate (note3) (?esc? switch to regular key code) [ctrl + shift + f1~f8] customer define key (note4) [ctrl + shift + scroll] switch to [scroll]++[scroll] hot key mode [ctrl + shift + caps] switch to [caps]++[caps] hot key mode [ctrl + shift + num] switch to [num]++[num] hot key mode
page 14 of 21 AU9223 usb kvm controller v1.00 official release_ public note 1 : ?++? means press key rapidly, ?[scroll]++[scroll]+1? means press ?scroll? twice rapidly and then press ?1?. if system receives ?scroll ++ scroll? command only, system will reset the buffer when it does not receive any input comes after within a defined interval of ti me (say, 5 seconds). 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 represen ts 5 seconds? interval latency to 60 seconds correspondingly. auto-scan rate set n number second 1 5 2 10 3 15 4 20 5 25 6 30 7 35 8 40 9 60
page 15 of 21 AU9223 usb kvm controller v1.00 official release_ public note 4: gpo 2 gpo 1 gpo 0 function key +f1 0 0 0 function key +f2 0 0 1 function key +f3 0 1 0 function key +f4 0 1 1 function key +f5 1 0 0 function key +f6 1 0 1 function key +f7 1 1 0 function key +f8 1 1 1
page 16 of 21 AU9223 usb kvm controller v1.00 official release_ public 6.0 electrical characteristics 6.1 recommended operating conditions table 6.1 recommended operating conditions symbol parameter min typ max units v cc power supply 4.75 5 5.25 v v in input voltage 0 v cc v t opr operating temperature 0 85 o c t stg storage temperature -40 125 o c 6.2 general dc characteristics table 6.2 general dc characteristics symbol parameter conditions min typ max units i il input low current no pull -up or pull-down -1 1 a i ih input high current no pull-up or pull-down -1 1 a i oz tri-state leakage current -10 10 a c in input capacitance 5 f c out output capacitance 5 f c bid bi-directional buffer capacitance 5 f 6.3 dc electrical characterist ics for 3.3 volts operation table 6.3 dc electrical characteristics for 3.3 volts operation symbol parameter conditions min typ max units v il input low voltage cmos 0.9 v v ih input hight voltage cmos 2.3 v v ol output low voltage i ol =4ma, 16ma 0.4 v v oh output high voltage i oh =4ma,16ma 2.4 v r i input pull-up/down resistance vil=0 v or vih=v cc 10k/200k k ?
page 17 of 21 AU9223 usb kvm controller v1.00 official release_ public 6.4 crystal oscillator circuit setup for characterization the following setup was used to measure the open loop voltage gain for crystal oscillator circuits. the fee dback resistor serves to bias the circuit at its quiescent operating point and the ac coupling capacitor, cs, is much larger than c1 and c2. figure 6.1 crystal oscillator circuit setup for characterization 6.5 esd test results test description : esd testing was performed on a zapmaster system using the human-body ?model (hbm) and machine-model (mm), according to mil_std 883 and eiaj ic_121 respectively. human-body-model stress devices by su dden application of a high voltage supplied by a 100 pf capacitor through 1.5 kohm resistance. machine-model stresses devices by su dden application of a high voltage supplied by a 200 pf capacitor throug h very low (0 ohm) resistance test circuit & condition zap interval : 1 second number of zaps : 3 positive and 3 negative at room temperature critera : i-v curve tracing table 6.4 esd data model model s/s target results hbm vdd, vss, i/c 15 4000v pass mm vdd, vss, i/c 15 200v pass
page 18 of 21 AU9223 usb kvm controller v1.00 official release_ public 6.6 latch-up test results test description: latch-up testing was performed at room ambient using an imcs-4600 system which applies a stepped voltage to one pin per device with all other pins open except vdd and vss whic h were biased to 5 volts and ground respectively. testing was started at 5.0 v (positive) or 0 v(negative), and the dut was biased for 0.5 seconds. if neither the put current supply nor the device current supply reached the predefined limit (dut=0 ma , icc=100 ma), then the voltage was increased by 0.1 volts and the pin was tested again. this procedure was recommended by the jedec jc-40.2 cmos logic standardization committee. notes: 1. dut: device under test. 2. put: pin under test. figure 6.2 latch-up test results pin under test + vcc dut gnd m untested output open circuit untested input tied to v supply trigger source v supply + icc measurement 1 source test circuit : positive input/ output overvoltage /overcurrent pin under test
page 19 of 21 AU9223 usb kvm controller v1.00 official release_ public vcc dut gnd pin under test ma untested output open circuit untested input tied to v supply trigger source v supply + + icc measurement 1 source test circuit: negative input/output overvoltage/overcurrent vcc dut gnd ma untested output open circuit all input tied to v supply v supply + icc measurement supply voltage test table 6.5 latch?up data model model voltage (v)/ current (ma) s/s results + voltage - 11.0 11.0 5 pass + current - 200 200 5 vdd-vxx 9.0 5 pass
page 20 of 21 AU9223 usb kvm controller v1.00 official release_ public 7.0 mechanical information the following diagram sh ows the dimensions of the AU9223 48-pin lqfp. measurements are in inches. figure 7.1 mechanical information diagram
page 21 of 21 AU9223 usb kvm controller v1.00 official release_ public memo about alcor micro, corp alcor micro, corp. designs, develops and markets highly integrated and advanced peripheral semiconductor, an d software driver solution s for the personal computer and consumer electronics markets worldwid e. we specialize in usb solutions and focus on emerging technology such as usb and ieee 1394. the company offers a range of semiconductors including controllers for usb hub, integrated keyboard/usb hub and usb flash memory ca rd reader?etc. alcor micro, corp. is based in taipei, taiwan, with sales offices in taipei, japan, korea and california. alcor micro is distinguished by its ability to provide innovative solutions for spec-driven products. innovations like single chip solutions for traditional multiple chip products and on-board voltage regulators enable the company to provide cost-efficiency solutions for the comput er peripheral device oem customers worldwide.

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