3.3.2 WILCS02-SD Board SD/MMCplus Connector
The WILCS02-SD board has a PCB-implemented SD card interface (J100) via the SD/MMCplus connector. This board supports only the SDIO interface; it does not support the MMCplus interface. The unused DATA 5, DATA 6 and DATA 7 pins of the MMCplus connector are connected to MCLR, IRQ/INTOUT and reserved signal lines.
The following table provides the customized SD/MMCplus connector pin description for the WILCS02PE module.
Pin on SD/MMCplus Connector | Pin on WILCS02PE Module | Function | Description |
|---|---|---|---|
| 1 | 14 | SD DATA 3 | SDIO DATA 3 |
| 2 | 18 | SD CMD | SDIO command |
| 3 | 12,29,9,28 | GND | Ground |
| 4 | 20,23 | HOST_SD_P3V3 | 3.3V power supply from SD/MMCplus Host board |
| 5 | 19 | SD CLK | SDIO clock |
| 6 | 12,29,9,28 | GND | Ground |
| 7 | 17 | SD DATA 0 | SDIO Data 0 |
| 8 | 16 | SD DATA 1 | SDIO Data 1 |
| 9 | 15 | SD DATA 2 | SDIO Data 2 |
| 10 | — | — | — |
| 11 | 4 | RESET | Data 5 line is used to reset the WILCS02PE module |
| 12 | 13 | IRQ/INTOUT | Data 6 line is used to send Interrupt output from the WILCS02PE module |
| 13(1) | 11 | Reserved | Reserved |
Note:
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