Datasheet

Arduino® Portenta Breakout Board
15 / 19 Arduino® Portenta Breakout Board / Rev. 01 - 29/11/2021
5.8 PCIe
Pin Function Type Description
1 TXN Differential Differential PCIe Transmission Line Negative
2 RXN Differential Differential PCIe Receive Line Negative
3 CKN Differential Differential PCIe Clock Line Negative
4 GND Power Ground
1 TXP Differential Differential PCIe Transmission Line Positive
2 RXP Differential Differential PCIe Receive Line Positive
3 CKP Differential Differential PCIe Clock Line Positive
4 RST Digital Reset Signal
5.9 UART3/UART2
Pins closer to the edge of the board are UART2. Pins closer to the center are UART3.
Pin Function Type Description
1 3V3 Power +3.3 V power rail
2 TX Digital UART Transmission Signal
3 RX Digital UART Receive Signal
4 RTS Digital Request to send
5 CTS Digital Clear to send
6 GND Power Ground
5.10 I2S/SAI
Pin Function Type Description
1 3V3 Power +3.3 V power rail
2 CK Digital I2S Clock
3 WS Digital I2S Word Select
4 SD1 Digital I2S Right Channel
5 SD0 Digital I2S Left Channel
6 GND Power Ground
1 3V3 Power +3.3 V power rail
2 SCK Digital SAI Clock
3 FS Digital SAI Frame Synchronization
4 D0 Digital SAI Data Line 0
5 D1 Digital SAI Data Line 1
6 GND Power Ground