Datasheet

Section 10 I/O Ports
Rev.7.00 Mar. 18, 2009 page 488 of 1136
REJ09B0109-0700
• P33/RxD1/SCL1
The pin function is switched as shown below according to the combination of bit ICE in
ICCRA of I
2
C_0, bit RE in SCR of SCI_1 and bit P33DDR.
ICE 0 1
RE 0 1 ⎯
P33DDR 0 1 ⎯ ⎯
Pin function P33 input P33 output
*
1
RxD1 input SCL1 I/O
*
2
Notes: 1. NMOS open-drain output when P33ODR = 1.
2. NMOS open-drain output regardless of P33ODR.
• P32/RxD0/IrRxD/SDA1
The pin function is switched as shown below according to the combination of bit ICE in
ICCRA of I
2
C_0, bit RE in SCR of SCI_0 and bit P32DDR.
ICE 0 1
RE 0 1 ⎯
P32DDR 0 1 ⎯ ⎯
Pin function P32 input P32 output
*
1
RxD0/IrRxD
input
SDA1 I/O
*
2
Notes: 1. NMOS open-drain output when P32ODR = 1.
2. NMOS open-drain output regardless of P32ODR.
• P31/TxD1
The pin function is switched as shown below according to the combination of bit TE in SCR of
SCI_1 and bit P31DDR.
TE 0 1
P31DDR 0 1 ⎯
Pin function P31 input P31 output
*
TxD1 output
*
Note: * NMOS open-drain output when P31ODR = 1.