PORTMUX Control for USART
Bit7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
USART3[1:0] | USART2[1:0] | USART1[1:0] | USART0[1:0] | ||||
AccessR/W | R/W | R/W | R/W | R/W | R/W | R/W | R/W |
Reset0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
USART 3 Communication
Write these bits to select alternative communication pins for USART 3.
Value | Name | Description |
---|---|---|
0x0 | DEFAULT | USART3 on PB[3:0] |
0x1 | ALT1 | USART3 on PB[5:4] |
0x2 | - | Reserved |
0x3 | NONE | Not connected to any pins |
USART 2 Communication
Write these bits to select alternative communication pins for USART 2.
Value | Name | Description |
---|---|---|
0x0 | DEFAULT | USART2 on PF[3:0] |
0x1 | ALT1 | USART2 on PF[6:4] |
0x2 | - | Reserved |
0x3 | NONE | Not connected to any pins |
USART 1 Communication
Write these bits to select alternative communication pins for USART 1.
Value | Name | Description |
---|---|---|
0x0 | DEFAULT | USART1 on PC[3:0] |
0x1 | ALT1 | USART1 on PC[7:4] |
0x2 | - | Reserved |
0x3 | NONE | Not connected to any pins |
USART 0 Communication
Write these bits to select alternative communication pins for USART 0.
Value | Name | Description |
---|---|---|
0x0 | DEFAULT | USART0 on PA[3:0] |
0x1 | ALT1 | USART0 on PA[7:4] |
0x2 | - | Reserved |
0x3 | NONE | Not connected to any pins |