3.2.6.5 PIOE Bank
The PIOE bank is mainly used for the WILC3000 radio module over power rail VDDIOP1.
The following schematic shows the PIOE bank and PIOBUx distributions.
The following table describes each PIOE bank function.
| PIO | Power Rail | Function | Signal Description |
|---|---|---|---|
| PE0 | VDDIOP1 | PE0 | ATWILC3000 enable control signal |
| PE1 | VDDIOP1 | PE1 | RPi connector SPI chip enable 2 or RPi CSI camera GPIO |
| PE2 | VDDIOP1 | PWML0/PE2 | RPi connector PWM signal or RPi CSI camera GPIO |
| PE3 | VDDIOP1 | FLEXCOM0_IO0 | RPi connector SPI MOSI line or WILC3000 USART RX line |
| PE4 | VDDIOP1 | FLEXCOM0_IO1 | RPi connector SPI MISO line or WILC3000 USART TX line |
| PE5 | VDDIOP1 | FLEXCOM0_IO2 | RPi connector SPI clock line |
| PE6 | VDDIOP1 | FLEXCOM0_IO3 | RPi connector SPI chip enable 0 or WILC3000 USART RTS line |
| PE7 | VDDIOP1 | FLEXCOM0_IO4 | RPi connector SPI chip enable 1 or WILC3000 USART CTS line |
| PIOBU0 | VDDBU | PIOBU0 | Tamper 0 - Tamper connector |
| PIOBU1 | VDDBU | PIOBU1 | Tamper 1 - Tamper connector |
| PIOBU2 | VDDBU | PIOBU2 | Tamper 2 - Tamper connector |
| PIOBU3 | VDDBU | PIOBU3 | Tamper 3 - Tamper connector |