AU9540 USB Smart Card Reader V1.6
6
Table 3.1 AU9540 Pin Descriptions
Pin # Pin Name I/O Description
1 SCard0C8 IO Smart card GPIO_2
2 SCard0C6 IO Smart card GPIO_1
3 SCard0Fcb IO Smart card GPIO_0
4 SMIO_5VPWR PWR Smart Card IO pad power
5 SCard0Rst O Smart card reset
6 SCard0Clk O Smart card clock
7 SCard0Data IO Smart card serial data
8 DM IO USB D-
9 DP IO USB D+
10 AV33 PWR USB PHY power
11 SCPWR0 PWR Smart card Power
12 5VGND PWR AGND5V
13 5VInput PWR 5VInput
14 V33OUT PWR 3.3V OUT
15 V18OUT PWR 1.8V OUT
16 VDD PWR Core Power
17 VDDP PWR PLL Power
18 VDDH PWR Pad Power
19 ICCInsertN I
Smart card insert detection (Low active) (internal pull
high)
20 P1(6) I EEPROM Write Protect
21 EEPCLK O EEPROM Clock (need pull high)
22 EEPDATA IO EEPROM Data (need pull high)
23 RESET I Chip Reset
24 LEDPWR O Chip Power LED
25 LEDCRD O Card Slot LED
26 PWRSV_SEL I
PWRSV_SEL (Default high) (High: Normal mode,
Low: Power Saving Mode)
27 XI I Crystal Oscillator Input (12MHz)
28 XO O Crystal Oscillator Output (12MHz)
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