Alcor Micro AU9525, Technical Reference Manual

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Table 3.1 AU9525 Pin Descriptions
Pin # Pin Name I/O Description
1 AVCC PWR Analog 3.3V power supply
2 AVSS PWR Analog ground.
3 XTAL1 I Crystal Oscillator Input (12MHz).
4 XTAL2 O Crystal Oscillator Output (12MHz).
5 PSWOUTB O Connect to Slot1 Power.
6 PSWOUTA O Connect to Slot0 Power.
7 VCC5V PWR 5V power supply Input
8 BVCC PWR 3.3V power supply output
9 USB_DP I/O USB D+
10 USB_DM I/O USB D-
11 BVSS PWR Chip I/O Ground.
12 ChipRstN I Chip Reset
13 LCD_En O
LCD Enable
（
High effective).
14 GPI_0 I Reserved (need pull down)
15 LCD_Rw O LCD Read/Write.0:write;1:read.
16 GPI_1 I Reserved (need pull down)
17 LCD_RS O LCD driver dedicated I/O line: LCD Register Select.
18 SCL I/O EEPROM Clock (need pull high)
19 SDA I/O EEPROM Data (need pull high)
20 LCD_BL O LCD Background Light control,1:on,0:off.
21 LCD_CS1 O
LCD Display control(To select the left side or right
side).
22 Key_Row4 I Keyboard row input 4.
23 Key_Row3 I Keyboard row input 3.
24 Key_Row2 I Keyboard row input 2.
25 Key_Row1 I Keyboard row input 1.
26 Key_Row0 I Keyboard row input 0.
27 PORT1_2 O Slot1 LED
28 PORT1_3 O Slot2 LED
29 PORT1_4 O Card Power LED
30 PORT1_5 I
PID/VID ("1": 9525 one slot mode, "0": 9526 two slot
mode, default: "1")
31 PORT1_6 I Reserved(need pull Low)
32 PORT1_7 I Reserved(need pull Low)
33 Key_Col5 I Keyboard columniation input 5.
AU9525 USB Smart Card Reader Controller V1.00W
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