Datasheet

Section 8 I/O Ports
Rev. 2.00 Aug. 20, 2008 Page 345 of 1198
REJ09B0403-0200
(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 0 1
PD7DDR 0 1 X
Pin function PD7 input pin PD7 output pin SDA5 input/output pin
[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 0 1
PD6DDR 0 1 X
Pin function PD6 input pin PD6 output pin SCL5 input/output pin
[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 Disabled Enabled
PD5DDR 0 1 0
Pin function PD5 input pin PD5 output pin LPCPD input pin