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(4)
Pin Functions
Port D pins can also function as the LPC input/output and IIC_5 input/output pins. The
relationship between register setting values and pin functions are as follows.
The LPC is disabled when all of the bits LPC1E, LPC2E, and LPC3E in HICR0 and SCIFE in
HICR5 are cleared to 0.
• PD7/SDA5
The pin function is switched as shown below according to the combination of the ICE bit in
ICCR of the IIC_5 and the PD7DDR bit.
ICE
PD7DDR
Pin function
[Legend]
X: Don't care.
• PD6/SCL5
The pin function is switched as shown below according to the combination of the ICE bit in
ICCR of the IIC_5 and the PD6DDR bit.
ICE
PD6DDR
Pin function
[Legend]
X: Don't care.
• PD5/LPCPD
The pin function is switched as shown below according to the PD5DDR bit. This pin can be
used as the LPCPD input pin when the LPC is enabled.
LPC
PD5DDR
Pin function
0
0
PD7 input pin
0
0
PD6 input pin
Disabled
0
PD5 input pin
1
PD7 output pin
1
PD6 output pin
1
PD5 output pin
Rev. 1.00 Mar. 12, 2008 Page 343 of 1178
Section 8 I/O Ports
1
X
SDA5 input/output pin
1
X
SCL5 input/output pin
Enabled
0
LPCPD input pin
REJ09B0403-0100
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