Alcor AU9525 Technisches Referenzhandbuch - Seite 10

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Pin #
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5
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4

Table 3.1 AU9525 Pin Descriptions

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