AU9223 查看數據表（PDF） - Unspecified
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AU9223 Datasheet PDF : 21 Pages
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Table 3.1 Pin Descriptions
Pin No.
Pin Name
1 AVCC
2 AVSS
3 XTAL1
4 XTAL2
5 VCC5V
6 BVCC
7 BVSS
8 SWITCHN
9 AUDIOSWITCHN
10 BUS_PWRD
11 BEEP
12 DP4_PWRUP
13 DOWNUSB4_DP
14 DOWNUSB4_DM
15 SYS1BUTTONN
16 SYS2BUTTONN
17 DP2_PWRUP
18 DP1_PWRUP
19 DOWNUSB2_DP
20 DOWNUSB2_DM
21 DOWNUSB1_DP
22 DOWNUSB1_DM
23 Virtual_KBD_Port1
24 VSS
25 VCC
I/O Type
Description
PWR
PWR
Provides 3.3V analog input power to silicon;
Connects to BVCC;
Ground Pin of AVCC Power Plane
I
12 MHz Crystal Input
O
12 MHz Crystal Output
PWR
PWR
PWR
I
I
I
O
O
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
I/O DownPort4 DP
I/O DownPort4 DM
I
System1 Enable (0: Enable ; 1: Normal)
I
System2 Enable (0: Enable ; 1: Normal)
O
Power Up for DownPort2
O
Power Up for DownPort1
I/O DownPort2 DP
I/O DownPort2 DM
I/O DownPort1 DP
I/O
I
PWR
DownPort1 DM
Control Virtual Keyboard Port1 (0: Enable; 1:
Disable)
Ground Pin for VCC Power Plane
PWR 3.3 V Input Power; Connects to BVCC
26 SWITCHMODE0
27 SWITCHMODE1
I
Switch Mode Selection: (SW0, SW1)
(0,0): [Scroll][Scroll] Mode
(0,1): [CapsLock][CapsLock] Mode
(1,0): [NumLock][NumLock] Mode
I
(1,1): [CTRL][SHIFT] Mode (Left Hand Side)
28 Virtual_KBD_Port2
29
PS2_CLK/No
Connection
30
PS2_DAT/No
Connection
31 Reserved
32 Reserved
AU9223 USB KVM Controller V1.00
Official Release_ Public
I
Control Virtual Keyboard Port2 (0: Enable; 1:
Disable)
I
PS2 Clock Output; No Connection if only
support USB Keyboard
I
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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