7.2.2 PIOB Pin List
| Pad No. | Power Rail | I/O Type | Primary | Alternate Signal | PIO Peripheral | Reset State(1) | Note | |||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal | Type | Func | Signal | IO Set | Signal, Dir, PU, PD, HiZ, ST | |||||
| – | VDD_3V3 | GPIO | PB0 | GPIO | – | A | GRX2 | 1 | PIO, I, PU, ST | Used for Gigabit Ethernet(2) |
| – | VDD_3V3 | GPIO | PB1 | GPIO | – | A | GRX3 | 1 | PIO, I, PU, ST | Used for Gigabit Ethernet(2) |
| – | VDD_3V3 | GPIO | PB2 | GPIO | – | A | G125CK | 1 | PIO, I, PU, ST | Used for Gigabit Ethernet(2) |
| – | VDD_3V3 | GPIO | PB3 | GPIO | – | A | GCRSDV/GRXCTL | 1 | PIO, I, PU, ST | Used for Gigabit Ethernet(2) |
| – | VDD_3V3 | GPIO | PB4 | GPIO | – | A | GTX2 | 1 | PIO, I, PU, ST | Used for Gigabit Ethernet(2) |
| – | VDD_3V3 | GPIO | PB5 | GPIO | – | A | GTX3 | 1 | PIO, I, PU, ST | Used for Gigabit Ethernet(2) |
| – | VDD_3V3 | GPIO | PB6 | GPIO | – | A | GTXCK/GREFCK | 1 | PIO, I, PU, ST | Used for Gigabit Ethernet(2) |
| – | VDD_3V3 | GPIO | PB7 | GPIO | – | A | GTXEN/GTXCTL | 1 | PIO, I, PU, ST | Used for Gigabit Ethernet(2) |
| – | VDD_3V3 | GPIO | PB8 | GPIO | – | A | GRXCK | 1 | PIO, I, PU, ST | Used for Gigabit Ethernet(2) |
| – | VDD_3V3 | GPIO | PB9 | GPIO | – | A | GMDIO | 1 | PIO, I, PU, ST | Used for Gigabit Ethernet(2) |
| – | VDD_3V3 | GPIO | PB10 | GPIO | – | A | GMDC | 1 | PIO, I, PU, ST | Used for Gigabit Ethernet(2) |
| – | VDD_3V3 | GPIO | PB11 | GPIO | – | A | GRX0 | 1 | PIO, I, PU, ST | Used for Gigabit Ethernet(2) |
| – | VDD_3V3 | GPIO | PB12 | GPIO | – | A | GRX1 | 1 | PIO, I, PU, ST | Used for Gigabit Ethernet(2) |
| – | VDD_3V3 | GPIO | PB13 | GPIO | – | A | GTX0 | 1 | PIO, I, PU, ST | Used for Gigabit Ethernet(2) |
| – | VDD_3V3 | GPIO | PB14 | GPIO | – | A | GTX1 | 1 | PIO, I, PU, ST | Used for Gigabit Ethernet(2) |
| 23 | VDD_3V3 | GPIO | PB15 | GPIO | – | C | FLEXCOM11_IO0 | 1 | PIO, I, PU, ST | (3) |
| D | I2SMCC_WS | 1 | ||||||||
| 25 | VDD_3V3 | GPIO | PB16 | GPIO | – | C | FLEXCOM11_IO1 | 1 | PIO, I, PU, ST | (3) |
| D | I2SMCC_DIN0 | 1 | ||||||||
| 26 | VDD_3V3 | GPIO | PB17 | GPIO | – | C | FLEXCOM12_IO0 | 1 | PIO, I, PU, ST | (3) |
| D | I2SMCC_DOUT0 | 1 | ||||||||
| 27 | VDD_3V3 | GPIO | PB18 | GPIO | WKUP7 | B | ADTRG | 1 | PIO, I, PU, ST | (3) |
| C | FLEXCOM12_IO1 | 1 | ||||||||
| D | IRQ | 1 | ||||||||
| – | VDD_3V3 | GPIO | PB19 | GPIO | – | A | QSCK | 1 | PIO, I, PU, ST | Used for QSPI memory(2) |
| 20 | VDD_3V3 | GPIO | PB20 | GPIO | – | A | QCS | 1 | PIO, I, PU, ST | Used for QSPI memory(2) |
| – | VDD_3V3 | GPIO | PB21 | GPIO | – | A | QIO0 | 1 | PIO, I, PU, ST | Used for QSPI memory(2) |
| – | VDD_3V3 | GPIO | PB22 | GPIO | – | A | QIO1 | 1 | PIO, I, PU, ST | Used for QSPI memory(2) |
| – | VDD_3V3 | GPIO | PB23 | GPIO | – | A | QIO2 | 1 | PIO, I, PU, ST | Used for QSPI memory(2) |
| – | VDD_3V3 | GPIO | PB24 | GPIO | – | A | QIO3 | 1 | PIO, I, PU, ST | Used for QSPI memory(2) |
| 24 | VDD_3V3 | GPIO | PB25 | GPIO | WKUP8 | D | I2SMCC_MCK | 1 | PIO, I, PU, ST | (3) |
| 28 | VDD_3V3 | GPIO | PB26 | GPIO | – | D | I2SMCC_CK | 1 | PIO, I, PU, ST | (3) |
Note:
- Signal = ‘PIO’ if GPIO; Dir = Direction; PU = Pull-up; PD = Pull-down; HiZ = High impedance; ST = Schmitt Trigger.
- This feature is fixed due to the SAM9X75 SOM Series internal connection.
- Compared to SAM9X75 SiP, this feature is limited, as it is partly used for other SAM9X75 SOM Series features, for example GMAC or FLEXCOM.