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1
Data Book
AU9223 USB KVM Controller
Technical Reference Manual
Product Specification Official Release Revision 1.00 Public
Nov. 2005
Data sheet status
Objective specification Preliminary specification Product specification This data sheet contains target or goal specifications for product development. This data sheet contains preliminary supplementary data may be published later. data;
This data sheet contains final product specifications.
Revision History
Date Nov. 2005 Revision 1.00 Official release Description
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Copyright Notice Copyright 1998 - 2005 Alcor Micro Corp. All Rights Reserved. Trademark Acknowledgements The company and product names mentioned in this document may be the trademarks or registered trademarks of their manufacturers. Disclaimer Alcor 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
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5.3 [Ctrl]+[Alt] mode
Table of Contents
1 Introduction........................................................................ 1.1 Description.......................................................................................... 1.2 Features............................................................................................... 2 Application Block Diagram................................................. 3 Pin Assignment................................................................... 6 6 6 7 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
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List of Figures
2.1 Block Diagram............................................................................................... 3.1 Pin Assignment Diagram............................................................................. 7 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 6.1 6.2 6.3 6.4 6.5 Pin Descriptions........................................................................................ General DC Characteristics.................................................................... DC Electrical Characteristics for 3.3 volts operation....................... ESD Data..................................................................................................... Latch-Up Test Results............................................................................... 9 16 16 17 19 Recommended Operating Conditions................................................... 16
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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 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 AU9223 is under an environment, in which 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 indicators 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 signal to the external video -switching circuit.
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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
PC 1
PC 2
USB cable
USB cable Monitor cable
Monitor Cable
AU9223 KVM
Selection (2x)
Monitor swtiching box (Relay device)
Port 1
Port 2
Auto-swtich mode default button x 1
Keyboard
Monitor
Mouse
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3.0 Pin Assignment
Figure 3.1 Pin Assignment Diagram
ONITOR2EN ONITOR1EN Port1Detect Port2Detect
PUSB2_DM
PUSB1_DM
PUSB1_DP
PUSB2_DP
UP2LEDN
UP1LEDN
Reserved
48 AVCC 1 2
NC
47
46
45
44
43
42
41
40
39
38
37 36 35 GPO0 GPO1 GPO2 Reserved Reserved Reserved PS2_DAT/No Connectio PS2_CLK/No Connectio
AVSS XTAL1
3 4 5 6
34 33 32 31 30 29 28 27 26 25 13 14 15 16 17 18 19 20 21 22 23 24
XTAL2 VCC5V BVCC BVSS SWITCHN IOSWITCHN BUS_PWRD BEEP
7 8 9
ALCOR MICRO AU9223 48PIN LQFP
Virtual_KBD_Port2 SWITCHMODE1 SWITCHMODE0 VCC
10 11 12
DP4_PWRUP
DOWNUSB1_DM
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DOWNUSB4_DP
DOWNUSB4_DM
SYS1BUTTONN
DP2_PWRUP
DP1_PWRUP
DOWNUSB2_DP
DOWNUSB2_DM
DOWNUSB1_DP
Virtual_KBD_Port1
VSS
SYS2BUTTONN
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Table 3.1 Pin Descriptions Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 Pin Name AVCC AVSS XTAL1 XTAL2 VCC5V BVCC BVSS SWITCHN AUDIOSWITCHN BUS_PWRD BEEP DP4_PWRUP DOWNUSB4_DP DOWNUSB4_DM SYS1BUTTONN SYS2BUTTONN DP2_PWRUP DP1_PWRUP DOWNUSB2_DP DOWNUSB2_DM DOWNUSB1_DP DOWNUSB1_DM Virtual_KBD_Port1 VSS VCC SWITCHMODE0 I/O Type PWR PWR I O PWR PWR PWR I I I O O I/O I/O I I O O I/O I/O I/O I/O I PWR PWR I Description Provides 3.3V analog input power to silicon; Connects to BVCC; Ground Pin of AVCC Power Plane 12 MHz Crystal Input 12 MHz Crystal Output 5V Input Power from USB port Provides 3.3V analog output power from internal regulator Ground Pin of BVCC Power Plane Push Button for switching to next system (0: Enable; 1: Normal) Audio On/Off Switch (1: Off; 0: On) Bus power selection (1: Device Self Power; 0: Bus Power) Audio Output (4KHz frequency) when system switches Power Up For DownPort4 DownPort4 DP DownPort4 DM System1 Enable (0: Enable ; 1: Normal) System2 Enable (0: Enable ; 1: Normal) Power Up for DownPort2 Power Up for DownPort1 DownPort2 DP DownPort2 DM DownPort1 DP DownPort1 DM Control Virtual Keyboard Port1 (0: Enable; 1: Disable) Ground Pin for VCC Power Plane 3.3 V Input Power; Connects to BVCC 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) Control Virtual Keyboard Port2 (0: Enable; 1: Disable) PS2 Clock Output; No Connection if only support USB Keyboard PS2 Data Output; No Connection if only support USB Keyboard Connect to ground; Reserved for system use Connect to ground; Reserved for system use
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27 28 29 30 31 32
SWITCHMODE1 Virtual_KBD_Port2 PS2_CLK/No Connection PS2_DAT/No Connection Reserved Reserved
I I I I
Official Release_ Public
Pin No. 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48
Pin Name Reserved GPO2 GPO1 GPO0 MONITOR1EN MONITOR2EN Reserved Port2Detect Port1Detect UPUSB1_DP UPUSB1_DM UPUSB2_DP UPUSB2_DM UP1LEDN UP2LEDN NC
I/O Type
Description Reserved for system use. Please see reference circuit schematics for suggested connection General Purpose Output Pin2 General Purpose Output Pin1 General Purpose Output Pin0 Monitor 1 Enable (0: Enable; 1: Disable) Monitor 2 Enable (0: Enable; 1: Disable) Connect to ground; Reserved for system use Connect to Upstream Port 2's VCC Connect to Upstream Port 1's VCC Upstream Port 1 DP Upstream Port 1 DM Upstream Port 2 DP Upstream Port 2 DM System 1 LED Indicator System 2 LED Indicator No Connection Required
O O O O O I I I/O I/O I/O I/O O O
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4.0 System Architecture and Reference Design
4.1 AU9223 Block Diagram
Figure 4.1 AU9223 Block Diagram
Host 1
Host 2
USB Protocol Engine
USB Protocol Engine
Downstream Port Control
Downstream Port Control
Downstrea m Port Data Check Switch Detection
Downstream Port Data Mux
Port 1,2,3
Port 4
Port 4
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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 using 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 [Scroll] ++ [Scroll] + S [Scroll] ++ [Scroll] + S + n [Scroll]++[Scroll]+F1~F8 [Scroll]++[Scroll]+[Caps] [Scroll]++[Scroll]+[Num] [Scroll]++[Scroll]+[Ctrl] Beeper On/Off (note2) Auto-scan mode every 10 second. regular key code.) Set Auto-scan rate (note3). ("ESC" switch to regular key code) Customer define key (note4). Switch to [Caps]++[Caps] hot key mode Switch to [Num]++[Num] hot key mode Switch to [Ctrl]+[Shift] hot key mode ("ESC" switch to
5.2 [Caps]++[Caps] mode
Hot Key Definition
[Caps]++[Caps]+1 [Caps]++[Caps]+2 [Caps]++[Caps]+ or [Caps]++[Caps]+ or [Caps]++[Caps]+B [Caps]++[Caps]+S [Caps]++[Caps]+S + n [Caps]++[Caps]+F1~F8 [Caps]++[Caps]+[Scroll] [Caps]++[Caps]+[Num] [Caps]++[Caps]+[Ctrl] Switch to PC1 Switch to PC2 Switch to Next PC Switch to Previous PC Beeper On/Off (note2) Auto-scan mode every 10 second. Set Auto-scan rate (note3) Customer define key (note4) Switch to [Scroll]++[Scroll] hot key mode Switch to [Num]++[Num] hot key mode Switch to [Ctrl]+[Shift] hot key mode
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5.3 [Num]++[Num] Mode
Hot Key Definition
[Num]++[Num]+1 [Num]++[Num]+2 [Num]++[Num]+ or [Num]++[Num]+ or [Num]++[Num]+B [Num]++[Num]+S [Num]++[Num]+S + n [Num]++[Num]+F1~F8 [Num]++[Num]+[Scroll] [Num]++[Num]+[Caps] [Num]++[Num]+[Ctrl] Switch to PC1 Switch to PC2 Switch to Next PC Switch to Previous PC Beeper On/Off (note2) Auto-scan mode every 10 second. ("ESC" switch to regular key code.) Set Auto-scan rate (note3) ("ESC" switch to regular key code) Customer define key (note4) Switch to [Scroll]++[Scroll] hot key mode Switch to [Caps]++[Caps] hot key mode Switch to [Ctrl]+[Shift] hot key mode
5.4 [Ctrl]+[Shift] mode
Hot Key Definition
[Ctrl]++[Ctrl] [Ctrl + Shift + 1] [Ctrl + Shift + 2] [Ctrl + Shift + or ] [Ctrl + Shift + or ] [Ctrl + Shift + B] [Ctrl + Shift + S] [Ctrl + Shift + S + n] [Ctrl + Shift + F1~F8] [Ctrl + Shift + Scroll] [Ctrl + Shift + Caps] [Ctrl + Shift + Num] Switch to next live PC Switch to PC1 Switch to PC2 Switch to Next PC Switch to Previous PC Beeper On/Off (note2) Auto-scan mode every 10 second. ("ESC" switch to regular key code.) Set Auto-scan rate (note3) ("ESC" switch to regular key code) Customer define key (note4) Switch to [Scroll]++[Scroll] hot key mode Switch to [Caps]++[Caps] hot key mode Switch to [Num]++[Num] hot key mode
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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 time (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 represents 5 seconds' interval latency to 60 seconds correspondingly.
Auto-scan rate set Nnumber 1 2 3 4 5 6 7 8 9 Second 5 10 15 20 25 30 35 40 60
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Note 4: GPO 2 Function key +F1 Function key +F2 Function key +F3 Function key +F4 Function key +F5 Function key +F6 Function key +F7 Function key +F8 0 0 0 0 1 1 1 1 GPO 1 0 0 1 1 0 0 1 1 GPO 0 0 1 0 1 0 1 0 1
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6.0
Electrical Characteristics
6.1 Recommended Operating Conditions
Table 6.1 Recommended Operating Conditions
SYMBOL VCC VIN TOPR TSTG PARAMETER Power Supply Input Voltage Operating Temperature Storage Temperature MIN 4.75 0 0 -40 TYP 5 MAX 5.25 VCC 85 125 UNITS V V
O
C C
O
6.2 General DC Characteristics
Table 6.2 General DC Characteristics
SYMBOL IIL IIH IOZ CIN COUT CBID PARAMETER Input low current Input high current Tri-state leakage current Input capacitance Output capacitance Bi-directional buffer capacitance CONDITIONS no pull-up or pull-down no pull-up or pull-down MIN -1 -1 -10 5 5 5 TYP MAX 1 1 10 UNITS A A A F F F
6.3 DC Electrical Characteristics for 3.3 volts operation
Table 6.3 DC Electrical Characteristics for 3.3 volts operation
SYMBOL VIL VIH VOL VOH RI PARAMETER CONDITIONS CMOS CMOS 2.3 0.4 2.4 10k/200k MIN TYP MAX 0.9 UNITS
Input Low Voltage Input Hight Voltage Output low voltage Output high voltage Input Pull-up/down resistance
V V V
V
IOL=4mA, 16mA IOH=4mA,16mA Vil=0V or Vih=VCC
K
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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 feedback 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 sudden application of a high voltage supplied by a 100 PF capacitor through 1.5 Kohm resistance. Machine-Model stresses devices by sudden application of a high voltage supplied by a 200 PF capacitor through 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 HBM MM Model Vdd, Vss, I/C Vdd, Vss, I/C S/S 15 15 TARGET 4000V 200V Results Pass Pass
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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 which 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 Icc Measurement
m
1 Source
V Supply
+
Untested Input Tied to V supply Trigger Source
Vcc Pin Pin under under test test
DUT
GND
Untested Output Open Circuit
+
Test Circuit : Positive Input/ output Overvoltage /Overcurrent
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Icc M easurem ent
mA 1 Source
V Supply
V cc Pin under test
+
U ntested Input Tied to V supply Trigger Source
DUT
GND
U ntested O utput O pen C ircuit
+
Test Circuit: Negative Input/Output Overvoltage/Overcurrent
Icc Measurement mA V Supply Untested Output Open Circuit
Vcc All Input Tied to V supply
+
DUT
GND
Supply voltage Test
Table 6.5 Latch-Up Data
Model Voltage Current Vdd-Vxx Model + + Voltage (v)/ Current (mA) 11.0 11.0 200 200 9.0 S/S 5 5 5 Pass Results Pass
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7.0 Mechanical Information
The Following diagram shows the dimensions of the AU9223 48-pin LQFP. Measurements are in inches. Figure 7.1 Mechanical Information Diagram
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MEMO
About Alcor Micro, Corp Alcor Micro, Corp. designs, develops and markets highly integrated and advanced peripheral semiconductor, and software driver solutions for the personal computer and consumer electronics markets worldwide. 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 card 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 computer peripheral device OEM customers worldwide.
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