15.3.4 PORTMUX Control for TWI and SPI
| Name: | TWISPIROUTEA |
| Offset: | 0x03 |
| Reset: | 0x00 |
| Property: | - |
| Bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
| TWI0[1:0] | SPI0[1:0] | ||||||||
| Access | R/W | R/W | R/W | R/W | |||||
| Reset | 0 | 0 | 0 | 0 | |||||
Bits 5:4 – TWI0[1:0] TWI 0 Communication
Write these bits to select alternative communication pins for TWI 0.
| Value | Name | Description |
|---|---|---|
| 0x0 | DEFAULT | SCL/SDA on PA[3:2], Client mode on PC[3:2] in dual TWI mode |
| 0x1 | ALT1 | SCL/SDA on PA[3:2], Client mode on PF[3:2] in dual TWI mode |
| 0x2 | ALT2 | SCL/SDA on PC[3:2], Client mode on PF[3:2] in dual TWI mode |
| 0x3 | - | Reserved |
Bits 1:0 – SPI0[1:0] SPI 0 Communication
Write these bits to select alternative communication pins for SPI 0.
| Value | Name | Description |
|---|---|---|
| 0x0 | DEFAULT | SPI on PA[7:4] |
| 0x1 | ALT1 | SPI on PC[3:0] |
| 0x2 | ALT2 | SPI on PE[3:0] |
| 0x3 | NONE | Not connected to any pins |