Lesson 11: GPIO Port Control Register (GPIOPCTL)
The GPIOPCTL register is used in conjunction with the GPIOAFSEL register and selects the specific peripheral signal for each GPIO pin when using the alternate function mode. Most bits in the GPIOAFSEL register are cleared on reset, therefore most GPIO pins are configured as GPIOs by default. When a bit is set in the GPIOAFSEL register, the corresponding GPIO signal is controlled by an associated peripheral. The GPIOPCTL register selects one out of a set of peripheral functions for each GPIO, providing additional flexibility in signal definition. Following tables are the information on the defined encodings for the bit fields in this register.
TM4C123G MCU
| I/O |
Analog
Function |
Digital Function (GPIO->PCTL PMCn Field Encoding) |
| 0x0 |
0x1 |
0x2 |
0x3 |
0x4 |
0x5 |
0x6 |
0x7 |
0x8 |
0x9 |
0xA |
0xB |
0xC |
0xD |
0xE |
0xF |
| 0000 |
0001 |
0010 |
0011 |
0100 |
0101 |
0110 |
0111 |
1000 |
1001 |
1010 |
1011 |
1100 |
1101 |
1110 |
1111 |
| PA0 |
— |
GPIO |
U0Rx |
— |
— |
— |
— |
— |
— |
CAN1Rx |
— |
— |
— |
— |
— |
— |
— |
| PA1 |
— |
GPIO |
U0Tx |
— |
— |
— |
— |
— |
— |
CAN1Tx |
— |
— |
— |
— |
— |
— |
— |
| PA2 |
— |
GPIO |
— |
SSI0CLK |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
| PA3 |
— |
GPIO |
— |
SSI0Fss |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
| PA4 |
— |
GPIO |
— |
SSI0Rx |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
| PA5 |
— |
GPIO |
— |
SSI0Tx |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
| PA6 |
— |
GPIO |
— |
— |
I2C1SCL |
— |
M1PWM2 |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
| PA7 |
— |
GPIO |
— |
— |
I2C1SDA |
— |
M1PWM3 |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
| PB0 |
USB0ID |
GPIO |
U1Rx |
— |
— |
— |
— |
— |
T2CCP0 |
— |
— |
— |
— |
— |
— |
— |
— |
| PB1 |
USB0VBUS |
GPIO |
U1Tx |
— |
— |
— |
— |
— |
T2CCP1 |
— |
— |
— |
— |
— |
— |
— |
— |
| PB2 |
— |
GPIO |
— |
— |
I2C0SCL |
— |
— |
— |
T3CCP0 |
— |
— |
— |
— |
— |
— |
— |
— |
| PB3 |
— |
GPIO |
— |
— |
I2C0SDA |
— |
— |
— |
T3CCP1 |
— |
— |
— |
— |
— |
— |
— |
— |
| PB4 |
AIN10 |
GPIO |
— |
SSI2Clk |
— |
M0PWM2 |
— |
— |
T1CCP0 |
CAN0Rx |
— |
— |
— |
— |
— |
— |
— |
| PB5 |
AIN11 |
GPIO |
— |
SSI2Fss |
— |
M0PWM3 |
— |
— |
T1CCP1 |
CAN0Tx |
— |
— |
— |
— |
— |
— |
— |
| PB6 |
— |
GPIO |
— |
SSI2Rx |
— |
M0PWM0 |
— |
— |
T0CCP0 |
— |
— |
— |
— |
— |
— |
— |
— |
| PB7 |
— |
GPIO |
— |
SSI2Tx |
— |
M0PWM1 |
— |
— |
T0CCP1 |
— |
— |
— |
— |
— |
— |
— |
— |
| PC0 |
— |
GPIO |
TCK
SWCLK |
— |
— |
— |
— |
— |
T4CCP0 |
— |
— |
— |
— |
— |
— |
— |
— |
| PC1 |
— |
GPIO |
TMS
SWDIO |
— |
— |
— |
— |
— |
T4CCP1 |
— |
— |
— |
— |
— |
— |
— |
— |
| PC2 |
— |
GPIO |
TDI |
— |
— |
— |
— |
— |
T5CCP0 |
— |
— |
— |
— |
— |
— |
— |
— |
| PC3 |
— |
GPIO |
TDO
SWO |
— |
— |
— |
— |
— |
T5CCP1 |
— |
— |
— |
— |
— |
— |
— |
— |
| PC4 |
C1- |
GPIO |
U4Rx |
U1Rx |
— |
M0PWM6 |
— |
IDX1 |
WT0CCP0 |
U1RTS |
— |
— |
— |
— |
— |
— |
— |
| PC5 |
C1+ |
GPIO |
U4Tx |
U1Tx |
— |
M0PWM7 |
— |
PhA1 |
WT0CCP1 |
U1CTS |
— |
— |
— |
— |
— |
— |
— |
| PC6 |
C0+ |
GPIO |
U3Rx |
— |
— |
— |
— |
PhB1 |
WT1CCP0 |
USB0EPEN |
— |
— |
— |
— |
— |
— |
— |
| PC7 |
C0- |
GPIO |
U3Tx |
— |
— |
— |
— |
— |
WT1CCP1 |
USB0PFLT |
— |
— |
— |
— |
— |
— |
— |
| PD0 |
AIN7 |
GPIO |
SSI3Clk |
SSI1Clk |
I2C3SCL |
M0PWM6 |
M1PWM0 |
— |
WT2CCP0 |
— |
— |
— |
— |
— |
— |
— |
— |
| PD1 |
AIN6 |
GPIO |
SSI3Fss |
SSI1Fss |
I2C3SDA |
M0PWM7 |
M1PWM1 |
— |
WT2CCP1 |
— |
— |
— |
— |
— |
— |
— |
— |
| PD2 |
AIN5 |
GPIO |
SSI3Rx |
SSI1Rx |
— |
M0FAILT0 |
— |
— |
WT3CCP0 |
USB0EPEN |
— |
— |
— |
— |
— |
— |
— |
| PD3 |
AIN4 |
GPIO |
SSI3Tx |
SSI1Tx |
— |
— |
— |
IDX0 |
WT3CCP1 |
USB0PFLT |
— |
— |
— |
— |
— |
— |
— |
| PD4 |
USB0DM |
GPIO |
U6Rx |
— |
— |
— |
— |
— |
WT4CCP0 |
— |
— |
— |
— |
— |
— |
— |
— |
| PD5 |
USB0DP |
GPIO |
U6Tx |
— |
— |
— |
— |
— |
WT4CCP1 |
— |
— |
— |
— |
— |
— |
— |
— |
| PD6 |
— |
GPIO |
U2Rx |
— |
— |
M0FAULT0 |
— |
PhA0 |
WT5CCP0 |
— |
— |
— |
— |
— |
— |
— |
— |
| PD7 |
— |
GPIO |
U2Tx |
— |
— |
— |
— |
PhB0 |
WT5CCP1 |
NMI |
— |
— |
— |
— |
— |
— |
— |
| PE0 |
AIN3 |
GPIO |
U7Rx |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
| PE1 |
AIN2 |
GPIO |
U7Tx |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
| PE2 |
AIN1 |
GPIO |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
| PE3 |
AIN0 |
GPIO |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
| PE4 |
AIN9 |
GPIO |
U5Rx |
— |
I2C2SCL |
M0PWM4 |
M1PWM2 |
— |
— |
CAN0Rx |
— |
— |
— |
— |
— |
— |
— |
| PE5 |
AIN8 |
GPIO |
U5Tx |
— |
I2C3SDA |
M0PWM5 |
M1PWM3 |
— |
— |
CAN0TX |
— |
— |
— |
— |
— |
— |
— |
| PF0 |
— |
GPIO |
U1RTS |
SSI1Rx |
CAN0Rx |
— |
M1PWM4 |
PhA0 |
T0CCP0 |
NMI |
C0o |
— |
— |
— |
— |
— |
— |
| PF1 |
— |
GPIO |
U1CTS |
SSI1Tx |
— |
— |
M1PWM5 |
PhB0 |
T0CCP1 |
— |
C1o |
— |
— |
— |
— |
TRD1 |
— |
| PF2 |
— |
GPIO |
— |
SSI1Clk |
— |
M0FAULT0 |
M1PWM6 |
— |
T1CCP0 |
— |
— |
— |
— |
— |
— |
TRD0 |
— |
| PF3 |
— |
GPIO |
— |
SSI1Fss |
CAN0Tx |
— |
M1PWM7 |
— |
T1CCP1 |
— |
— |
— |
— |
— |
— |
TRCLK |
— |
| PF4 |
— |
GPIO |
— |
— |
— |
— |
M1FAULT0 |
IDX0 |
T2CCP0 |
USB0EPEN |
— |
— |
— |
— |
— |
— |
— |
| I/O |
Analog
Function |
0000 |
0001 |
0010 |
0011 |
0100 |
0101 |
0110 |
0111 |
1000 |
1001 |
1010 |
1011 |
1100 |
1101 |
1110 |
1111 |
| 0x0 |
0x1 |
0x2 |
0x3 |
0x4 |
0x5 |
0x6 |
0x7 |
0x8 |
0x9 |
0xA |
0xB |
0xC |
0xD |
0xE |
0xF |
| Digital Function (GPIO->PCTL PMCn Field Encoding) |
PD7 and PF0 are configured as GPIO by default but is locked and can only be reprogrammed by unlocking the pin in the GPIOLOCK register and uncommitting it by setting the GPIOCR register.
TM4C1294 MCU
| I/O |
Analog
Function |
Digital Function (GPIO->PCTL PMCn Field Encoding) |
| 0x0 |
0x1 |
0x2 |
0x3 |
0x4 |
0x5 |
0x6 |
0x7 |
0x8 |
0x9 |
0xA |
0xB |
0xC |
0xD |
0xE |
0xF |
| 0000 |
0001 |
0010 |
0011 |
0100 |
0101 |
0110 |
0111 |
1000 |
1001 |
1010 |
1011 |
1100 |
1101 |
1110 |
1111 |
| PA0 |
— |
GPIO |
U0Rx |
I2C9SCL |
T0CCP0 |
— |
— |
— |
CAN0Rx |
— |
— |
— |
— |
— |
— |
— |
— |
| PA1 |
— |
GPIO |
U0Tx |
I2C9SDA |
T0CCP1 |
— |
— |
— |
CAN0Tx |
— |
— |
— |
— |
— |
— |
— |
— |
| PA2 |
— |
GPIO |
U4Rx |
I2C8SCL |
T1CCP0 |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
SSI0CLK |
| PA3 |
— |
GPIO |
U4Tx |
I2C8SDA |
T1CCP1 |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
SSI0Fss |
| PA4 |
— |
GPIO |
U3Rx |
I2C7SCL |
T2CCP0 |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
SSI0XDAT0 |
| PA5 |
— |
GPIO |
U3Tx |
I2C7SDA |
T2CCP1 |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
SSI0XDAT1 |
| PA6 |
— |
GPIO |
U2Rx |
I2C6SCL |
T3CCP0 |
— |
USB0EPEN |
— |
— |
— |
— |
— |
— |
— |
SSI0XDAT2 |
— |
EPI0S8 |
| PA7 |
— |
GPIO |
U2Tx |
I2C6SDA |
T3CCP1 |
— |
USB0PFLT |
— |
— |
— |
— |
— |
USB0EPEN |
— |
SSI0XDA3 |
— |
EPI0S9 |
| PB0 |
USB0ID |
GPIO |
U1Rx |
I2C5SCL |
T4CCP0 |
— |
— |
— |
CAN1Rx |
— |
— |
— |
— |
— |
— |
— |
— |
| PB1 |
USB0VBUS |
GPIO |
U1Tx |
I2C5SDA |
T4CCP1 |
— |
— |
— |
CAN1Tx |
— |
— |
— |
— |
— |
— |
— |
— |
| PB2 |
— |
GPIO |
— |
I2C0SCL |
T5CCP0 |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
USB0STP |
EPI0S27 |
| PB3 |
— |
GPIO |
— |
I2C0SDA |
T5CCP1 |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
USB0CLK |
EPI0S28 |
| PB4 |
AIN10 |
GPIO |
U0CTS |
I2C5SCL |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
SSI1Fss |
| PB5 |
AIN11 |
GPIO |
U0RTS |
I2C5SDA |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
SSI1Clk |
| PC0 |
— |
GPIO |
TCK
SWCLK |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
| PC1 |
— |
GPIO |
TMS
SWDIO |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
| PC2 |
— |
GPIO |
TDI |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
| PC3 |
— |
GPIO |
TDO
SWO |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
| PC4 |
C1- |
GPIO |
U7Rx |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
EPI0S7 |
| PC5 |
C1+ |
GPIO |
U7Tx |
— |
— |
— |
— |
— |
RTCCLK |
— |
— |
— |
— |
— |
— |
— |
EPI0S6 |
| PC6 |
C0+ |
GPIO |
U5Rx |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
EPI0S5 |
| PC7 |
C0- |
GPIO |
U5Tx |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
EPI0S4 |
| PD0 |
AIN15 |
GPIO |
— |
I2C7SCL |
T0CCP0 |
— |
C0o |
— |
— |
— |
— |
— |
— |
— |
— |
— |
SSI2XDAT1 |
| PD1 |
AIN14 |
GPIO |
— |
I2C7SDA |
T0CCP1 |
— |
C1o |
— |
— |
— |
— |
— |
— |
— |
— |
— |
SSI2XDAT0 |
| PD2 |
AIN13 |
GPIO |
— |
I2C8SCL |
T1CCP0 |
— |
C2o |
— |
— |
— |
— |
— |
— |
— |
— |
— |
SSI2Fass |
| PD3 |
AIN12 |
GPIO |
— |
I2C8SDA |
T1CCP1 |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
SSI2Clk |
| PD4 |
AIN7 |
GPIO |
U2Rx |
— |
T3CCP0 |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
SSI1XDAT2 |
| PD5 |
AIN6 |
GPIO |
U2Tx |
— |
T3CCP1 |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
SSI1XDAT3 |
| PD6 |
AIN5 |
GPIO |
U2RTS |
— |
T4CCP0 |
— |
USB0EPEN |
— |
— |
— |
— |
— |
— |
— |
— |
— |
SSI2XDAT3 |
| PD7 |
AIN4 |
GPIO |
U2CTS |
— |
T4CCP1 |
— |
USB0OFLT |
— |
— |
NMI |
— |
— |
— |
— |
— |
— |
SSI2XDAT2 |
| PE0 |
AIN3 |
GPIO |
U1RTS |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
| PE1 |
AIN2 |
GPIO |
U1DSR |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
| PE2 |
AIN1 |
GPIO |
U1DCD |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
| PE3 |
AIN0 |
GPIO |
U1DTR |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
| PE4 |
AIN9 |
GPIO |
U1RI |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
SSI1XDAT0 |
| PE5 |
AIN8 |
GPIO |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
SSIXDAT1 |
| PF0 |
— |
GPIO |
— |
— |
— |
— |
EN0LED0 |
M0PWM0 |
— |
— |
— |
— |
— |
— |
— |
SSI3XDAT1 |
TRD2 |
| PF1 |
— |
GPIO |
— |
— |
— |
— |
EN0LED2 |
M0PWM1 |
— |
— |
— |
— |
— |
— |
— |
SSI3XDAT0 |
TRD1 |
| PF2 |
— |
GPIO |
— |
— |
— |
— |
— |
M0PWM2 |
— |
— |
— |
— |
— |
— |
— |
SSI3Fss |
TRD0 |
| PF3 |
— |
GPIO |
— |
— |
— |
— |
— |
M0PWM3 |
— |
— |
— |
— |
— |
— |
— |
SSI3Clk |
TRCLK |
| PF4 |
— |
GPIO |
— |
— |
— |
— |
EN0LED1 |
M0FAULT0 |
— |
— |
— |
— |
— |
— |
— |
SSI3XDA2 |
TRD3 |
| IO |
Analog Function |
Digital Function (GPIO->PCTL PMCn Field Encoding) |
| 0x0 |
0x1 |
0x2 |
0x3 |
0x4 |
0x5 |
0x6 |
0x7 |
0x8 |
0x9 |
0xA |
0xB |
0xC |
0xD |
0xE |
0xF |
| 0000 |
0001 |
0010 |
0011 |
0100 |
0101 |
0110 |
0111 |
1000 |
1001 |
1010 |
1011 |
1100 |
1101 |
1110 |
1111 |
| PG0 |
— |
GPIO |
— |
I2C1SLC |
— |
— |
EN0PPS |
M0PWM4 |
— |
— |
— |
— |
— |
— |
— |
— |
EPI0S11 |
| PG1 |
— |
GPIO |
— |
I2C1SDA |
— |
— |
— |
M0PWM5 |
— |
— |
— |
— |
— |
— |
— |
— |
EPI0S10 |
| PH0 |
— |
GPIO |
U0RTS |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
EPI0S0 |
| PH1 |
— |
GPIO |
U0CTS |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
EPI0S1 |
| PH2 |
— |
GPIO |
U0DCD |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
EPI0S2 |
| PH3 |
— |
GPIO |
U0DSR |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
EPI0S3 |
| PJ0 |
— |
GPIO |
U3Rx |
— |
— |
— |
EN0PPS |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
| PJ1 |
— |
GPIO |
U3Tx |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
| PK0 |
AIN16 |
GPIO |
U4Rx |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
EPI0S0 |
| PK1 |
AIN17 |
GPIO |
U4Tx |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
EPI0S1 |
| PK2 |
AIN18 |
GPIO |
U4RTS |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
EPI0S2 |
| PK3 |
AIN19 |
GPIO |
U4CTS |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
EPI0S3 |
| PK4 |
— |
GPIO |
— |
I2C3SCL |
— |
— |
EN0LED0 |
M0PWM6 |
— |
— |
— |
— |
— |
— |
— |
— |
EPI0S32 |
| PK5 |
— |
GPIO |
— |
I2C3SDA |
— |
— |
EN0LED2 |
M0PWM7 |
— |
— |
— |
— |
— |
— |
— |
— |
EPI0S31 |
| PK6 |
— |
GPIO |
— |
I2C4SCL |
— |
— |
EN0LED1 |
M0FAULT1 |
— |
— |
— |
— |
— |
— |
— |
— |
EPI0S25 |
| PK7 |
— |
GPIO |
U0RI |
I2C4SDA |
— |
— |
RTCCLK |
M0FAULT2 |
— |
— |
— |
— |
— |
— |
— |
— |
EPI0S24 |
| PL0 |
— |
GPIO |
— |
I2C2SDA |
— |
— |
— |
M0FAULT3 |
— |
— |
— |
— |
— |
— |
— |
USB0D0 |
EPI0S16 |
| PL1 |
— |
GPIO |
— |
I2C2SCL |
— |
— |
— |
PhA0 |
— |
— |
— |
— |
— |
— |
— |
USB0D1 |
EPI0S17 |
| PL2 |
— |
GPIO |
— |
— |
— |
— |
C0o |
PhB0 |
— |
— |
— |
— |
— |
— |
— |
USB0D2 |
EPI0S18 |
| PL3 |
— |
GPIO |
— |
— |
— |
— |
C1o |
IDX0 |
— |
— |
— |
— |
— |
— |
— |
USB0D3 |
EPI0S19 |
| PL4 |
— |
GPIO |
— |
— |
T0CCP0 |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
USB0D4 |
EPI0S26 |
| PL5 |
— |
GPIO |
— |
— |
T0CCP1 |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
USB0D5 |
EPI0S33 |
| PL6 |
USB0DP |
GPIO |
— |
— |
T1CCP0 |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
| PL7 |
USB0DM |
GPIO |
— |
— |
T1CCP1 |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
| PM0 |
— |
GPIO |
— |
— |
T2CCP0 |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
EPI0S15 |
| PM1 |
— |
GPIO |
— |
— |
T2CCP1 |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
EPI0S14 |
| PM2 |
— |
GPIO |
— |
— |
T3CCP0 |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
EPI0S13 |
| PM3 |
— |
GPIO |
— |
— |
T3CCP1 |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
EPI0S12 |
| PM4 |
TMPR3 |
GPIO |
U0CTS |
— |
T4CCP0 |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
| PM5 |
TMPR2 |
GPIO |
U0DCD |
— |
T4CCP1 |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
| PM6 |
TMPR1 |
GPIO |
U0DSR |
— |
T5CCP0 |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
| PM7 |
TMPR0 |
GPIO |
U0RI |
— |
T5CCP1 |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
| PN0 |
— |
GPIO |
U1RTS |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
| PN1 |
— |
GPIO |
U1CTS |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
| PN2 |
— |
GPIO |
U1DCD |
U2RTS |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
EPI0S29 |
| PN3 |
— |
GPIO |
U1DSR |
U2CTS |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
EPI0S30 |
| PN4 |
— |
GPIO |
U1DTR |
U3RTS |
I2C2SDA |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
EPI0S34 |
| PN5 |
— |
GPIO |
U1RI |
U3CTS |
I2C2SCL |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
EPI0S35 |
| PP0 |
C2+ |
GPIO |
U6Rx |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
SSI3XDAT2 |
| PP1 |
C2- |
GPIO |
U6Tx |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
SSI3XDAT3 |
| PP2 |
— |
GPIO |
U0DTR |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
USB0NXT |
EPI0S29 |
| PP3 |
— |
GPIO |
U1CTS |
U0DCD |
— |
— |
— |
— |
RTCCLK |
— |
— |
— |
— |
— |
— |
USB0DIR |
EPI0S30 |
| PP4 |
— |
GPIO |
U3RTS |
U0DSR |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
USB0D7 |
— |
| PP5 |
— |
GPIO |
U3CTS |
I2C2SCL |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
USB0D6 |
— |
| PQ0 |
— |
GPIO |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
SSI3Clk |
EPI0S20 |
| PQ1 |
— |
GPIO |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
SSI3Fss |
EPI0S21 |
| PQ2 |
— |
GPIO |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
SSI3XDAT0 |
EPI0S22 |
| PQ3 |
— |
GPIO |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
SSI3XDAT1 |
EPI0S23 |
| PQ4 |
— |
GPIO |
U1Rx |
— |
— |
— |
— |
— |
DIVSCLK |
— |
— |
— |
— |
— |
— |
— |
— |
| I/O |
Analog
Function |
0000 |
0001 |
0010 |
0011 |
0100 |
0101 |
0110 |
0111 |
1000 |
1001 |
1010 |
1011 |
1100 |
1101 |
1110 |
1111 |
| 0x0 |
0x1 |
0x2 |
0x3 |
0x4 |
0x5 |
0x6 |
0x7 |
0x8 |
0x9 |
0xA |
0xB |
0xC |
0xD |
0xE |
0xF |
| Digital Function (GPIO->PCTL PMCn Field Encoding) |
PD7 and PE7 are configured as GPIO by default but is locked and can only be reprogrammed by unlocking the pin in the GPIOLOCK register and uncommitting it by setting the GPIOCR register.
