| GPIO Name | Peripheral | Function | Alternate |
|---|---|---|---|
| PA 00 | U0_RX | ||
| PA 01 | U0_TX | ||
| PA 02 | Card Detect | ||
| PA 03 | U0_RTS | ||
| PA 04 | U0_CTS | ||
| PA 05 | U1_RX | ||
| PA 06 | U1_TX | ||
| PA 07 | Write Protect | ||
| PA 08 | |||
| PA 09 | U1_CTS | ||
| PA 10 | SPI0_CS0 | ||
| PA 11 | USB_ID |
SPI Interface /SPI0_MISO |
|
| PA 12 | SPI0_MOSI | ||
| PA 13 | SPI0_SCK | ||
| PA 14 | SPI1_CS0 | ||
| PA 15 | SPI1_SCK | ||
| PA 16 | SPI1_SCK | ||
| PA 17 | SPI1_MISO | ||
| PA 18 | SPI1_CS1 | ||
| PA 19 | SPI1_CS2 | ||
| PA 20 | EXTINT_8 | ||
| PA 21 | ADC0 | ||
| PA 22 | ADC1 | ||
| PA 23 | ADC2 | ||
| PA 24 | EXTINT_3 | ||
| PA 25 | SCAN_0 | ||
| PA 26 | SCAN_1 | ||
| PA 27 | SCAN_2 | ||
| PA 28 | SCAN_3 | ||
| PA 29 | SDA | ||
| PA 30 | SCL |