24.3.3 USARTn Pin Position

For available pins and functionality, refer to the I/O Multiplexing and Considerations section.

Name: USARTROUTEA
Offset: 0x02
Reset: 0x00
Property: -

Bit 76543210 
    USART1[1:0]USART0[2:0] 
Access R/WR/WR/WR/WR/W 
Reset 00000 

Bits 4:3 – USART1[1:0] USART 1 Signals

This bit field controls the pin positions for USART 1 signals.

ValueNameDescription
TxDRxDXCKXDIR
0x0DEFAULTPC0PC1PC2PC3
0x1ALT1PC4PC5PC6PC7
0x2ALT2PD6PD7--
0x3NONENot connected to any pins

Bits 2:0 – USART0[2:0] USART 0 Signals

This bit field controls the pin positions for USART 0 signals.

ValueNameDescription
TxDRxDXCKXDIR
0x0DEFAULTPA0PA1PA2PA3
0x1ALT1PA4PA5PA6PA7
0x2ALT2PA2PA3--
0x3ALT3PD4PD5PD6PD7
0x4ALT4PC1PC2PC3-
0x5NONENot connected to any pins