352
Pin
Selection Method and Pin Functions
P31/RxD0/
IrRxD
Switches as follows according to combinations of SCR RE bit of SCI0 and the
P31DDR bit.
RE
0
1
P31DDR
0
1
—
Pin function
P31 input pin
P31 output pin
*
RxD0/IrRxD input pin
Note:
*
When P31ODR = 1, it becomes NMOS open drain output.
P30/TxD0/
IrTxD
Switches as follows according to combinations of SCR TE bit of SCI0 and the
P30DDR bit.
TE
0
1
P30DDR
0
1
—
Pin function
P30 input pin
P30 output pin
*
TxD0/IrTxD output pin
*
Note:
*
When P30ODR = 1, it becomes NMOS open drain output.