3.2.6.4 PIOD Bank
The PIOD bank is mainly used for the WILC3000 radio module and Ethernet 10/100, over power rails VDDSDMMC2 and VDDIOP1, respectively.
The following schematic shows the PIOD bank distribution.
The following table describes each PIOD bank function.
| PIO | Power Rail | Function | Signal Description |
|---|---|---|---|
| PD0 | VDDIN33 | AD14 | mikroBUS 1 analog input |
| PD1 | VDDIN33 | AD15 | mikroBUS 2 analog input |
| PD2 | VDDSDMMC2 | SDMMC2_RSTN | WILC3000 SDIO reset line |
| PD3 | VDDSDMMC2 | SDMMC2_CMD | WILC3000 SDIO command line |
| PD4 | VDDSDMMC2 | SDMMC2_CK | WILC3000 SDIO clock line |
| PD5 | VDDSDMMC2 | SDMMC2_DAT0 | WILC3000 SDIO data line 0 |
| PD6 | VDDSDMMC2 | SDMMC2_DAT1 | WILC3000 SDIO data line 1 |
| PD7 | VDDSDMMC2 | SDMMC2_DAT2 | WILC3000 SDIO data line 2 |
| PD8 | VDDSDMMC2 | SDMMC2_DAT3 | WILC3000 SDIO data line 3 |
| PD9 | VDDIOP1 | PD9 | MCP16502 interrupt |
| PD10 | VDDIOP1 | PD10 | WILC3000 interrupt |
| PD11 | VDDIOP1 | PD11 | Power detect USB port A |
| PD12 | VDDIOP1 | CANTX0 | CAN transmit line 0 |
| PD13 | VDDIOP1 | CANRX0 | CAN receive line 0 |
| PD14 | VDDIOP1 | CANTX1 | CAN transmit line 1 |
| PD15 | VDDIOP1 | CANRX1 | CAN receive line 1 |
| PD16 | VDDIOP1 | FLEXCOM3_IO0 | Debug UART TX line |
| PD17 | VDDIOP1 | FLEXCOM3_IO1 | Debug UART RX line |
| PD18 | VDDIOP1 | FLEXCOM4_IO0 | mikroBUS 1 UART TX line |
| PD19 | VDDIOP1 | FLEXCOM4_IO1 | mikroBUS 1 UART RX line |
| PD20 | VDDIOP1 | PWMH3 | LED blue control or mikroBUS 2 PWM control |
| PD21 | VDDIOP1 | G1_TXEN/PD21 | Transmit enable or RPi connector GPIO |
| PD22 | VDDIOP1 | G1_TX0/PDMC0_CLK | Transmit data line 0 or PDM clock line |
| PD23 | VDDIOP1 | G1_TX1/PDMC0_DS0 | Transmit data line 1 or PDM data line 0 |
| PD24 | VDDIOP1 | G1_CRSDV/PDMC0_DS1 | Carrier sense and data valid or PDM data line 1 |
| PD25 | VDDIOP1 | G1_RX0/PD25 | Receive data line 0 or RPi connector GPIO |
| PD26 | VDDIOP1 | G1_RX1/PD26 | Receive data line 1 or RPi connector GPIO |
| PD27 | VDDIOP1 | G1_RXER/PD27 | Receive Error or RPi connector GPIO |
| PD28 | VDDIOP1 | G1_MDC/PWML3 | Management data clock or RPi connector GPIO |
| PD29 | VDDIOP1 | G1_MDIO/PD29 | Management data input/output or RPi connector GPIO |
| PD30 | VDDIOP1 | G1_TXCK/PD30 | Transmit clock or RPi connector GPIO |
| PD31 | VDDIOP1 | PD31 | RPi connector GPIO |