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(b)
Single-Chip Mode
• PC7, PC6
The pin function is switched as shown below according to the PCnDDR bit.
PCnDDR
Pin function
[Legend] n = 7, 6
• PC5/SDA4
The pin function is switched as shown below according to the combination of the ICE bit in
ICCR of the IIC_4 and the PC5DDR bit.
ICE
PC5DDR
Pin function
[Legend] X: Don't care.
• PC4/SCL4
The pin function is switched as shown below according to the combination of the ICE bit in
ICCR of the IIC_4 and the PC4DDR bit.
ICE
PC4DDR
Pin function
[Legend]
X: Don't care.
• PC3/SDA3
The pin function is switched as shown below according to the combination of the ICE bit in
ICCR of the IIC_3 and the PC3DDR bit.
ICE
PC3DDR
Pin function
[Legend]
X: Don't care.
0
PCn input pin
0
0
PC5 input pin
0
0
PC4 input pin
0
0
PC3 input pin
1
PC5 output pin
1
PC4 output pin
1
PC3 output pin
Rev. 1.00 Mar. 12, 2008 Page 339 of 1178
Section 8 I/O Ports
1
PCn output pin
1
X
SDA4 input/output pin
1
X
SCL4 input/output pin
1
X
SDA3 input/output pin
REJ09B0403-0100
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