Datasheet

Section 8 I/O Ports
Rev. 2.00 Sep. 28, 2009 Page 199 of 870
REJ09B0429-0200
• P56/IRQ14/PWX0
The pin function is switched as shown below according to the combination of the OEA bit in
DACR of PWMX and the P56DDR bit.
When the ISS14 bit in ISSR16 is cleared to 0 and the IRQ14E bit in IER16 of the interrupt
controller is set to 1, this pin can be used as the IRQ14 input pin. To use this pin as the IRQ14
input pin, clear the P56DDR bit to 0.
OEA 0 1
P56DDR 0 1 X
P56 input pin Pin function
IRQ14 input pin
P56 output pin PWX0 output pin
[Legend] X: Don't care.
• P55/IRQ13/RxD3
The pin function is switched as shown below according to the combination of the RE bit in
SCR and the SMIF bit in SCMR of SCI_3, and the P55DDR bit.
When the ISS13 bit in ISSR16 is cleared to 0 and the IRQ13E bit in IER16 of the interrupt
controller is set to 1, this pin can be used as the IRQ13 input pin. To use this pin as the IRQ13
input pin, clear the P55DDR bit to 0.
RE 0 1
SMIF 0 1
P55DDR 0 1 X
P55 input pin Pin function
IRQ13 input pin
P55 output pin RxD3 input pin RxD3 input/output
pin
[Legend] X: Don't care.