Datasheet

Table 21-3. Signals by Function, Except for GPIO (continued)
DescriptionBuffer Type
a
Pin TypePin NumberPin NameFunction
CPU Mode bit 0. Input must be set to logic 0
(grounded); other encodings reserved.
TTLI65CMOD0
System Control &
Clocks
CPU Mode bit 1. Input must be set to logic 0
(grounded); other encodings reserved.
TTLI76CMOD1
Main oscillator crystal input or an external clock
reference input.
AnalogI48OSC0
Main oscillator crystal output. Leave unconnected
when using a single-ended clock source.
AnalogO49OSC1
System reset input.TTLI64RST
UART module 0 receive. When in IrDA mode, this
signal has IrDA modulation.
TTLI26U0Rx
UART
UART module 0 transmit. When in IrDA mode, this
signal has IrDA modulation.
TTLO27U0Tx
UART module 1 receive. When in IrDA mode, this
signal has IrDA modulation.
TTLI12U1Rx
UART module 1 transmit. When in IrDA mode, this
signal has IrDA modulation.
TTLO13U1Tx
a. The TTL designation indicates the pin has TTL-compatible voltage levels.
21.1.4 GPIO Pins and Alternate Functions
Table 21-4. GPIO Pins and Alternate Functions
Multiplexed FunctionMultiplexed FunctionPin NumberIO
U0Rx26PA0
U0Tx27PA1
SSI0Clk28PA2
SSI0Fss29PA3
SSI0Rx30PA4
SSI0Tx31PA5
CCP134PA6
35PA7
PWM266PB0
PWM367PB1
I2C0SCL70PB2
I2C0SDA71PB3
C0-92PB4
C0o91PB5
C0+90PB6
TRST89PB7
SWCLKTCK80PC0
SWDIOTMS79PC1
TDI78PC2
SWOTDO77PC3
PhA025PC4
June 18, 2012730
Texas Instruments-Production Data
Signal Tables
NRND: Not recommended for new designs.