Datasheet

Section 8 I/O Ports
Rev. 3.00 Sep. 28, 2009 Page 158 of 710
REJ09B0384-0300
• P86/ExIRQ14/RxD3
The pin function is switched as shown below according to the combination of the RE bit in
SCR of SCI_3, the SMIF bit in SCMR, and the P86DDR bit.
When the ISS14 bit in ISSR16 is set to 1, this pin can be used as the ExIRQ14 input pin. To
use this pin as the ExIRQ14 input pin, clear the P86DDR bit to 0.
P86DDR 0 1
SMIF 0 1 0
RE 0 1 0
P86 input pin Pin function
ExIRQ14 input pin
RxD3 input pin RxD3 input/output
pin
P86 output pin
• P85/ExIRQ13/SCK1
The pin function is switched as shown below according to the combination of the C/A bit in
SMR of SCI_1, the CKE1 and CKE0 bits in SCR, and the P85DDR bit.
When the ISS13 bit in ISSR16 is set to 1, this pin can be used as the ExIRQ13 input pin. To
use this pin as the ExIRQ13 input pin, clear the P85DDR bit to 0.
CKE1 0 1
C/A 0 1 x
CKE0 0 1 x x
P85DDR 0 1 x x x
P85 input pin Pin function
ExIRQ13 input pin
P85 output
pin
SCK1 output
pin
SCK1 output
pin
SCK1 input
pin
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x: Don't care