Datasheet

Section 8 I/O Ports
Rev. 2.00 Sep. 28, 2009 Page 214 of 870
REJ09B0429-0200
• P73/ExIRQ3/AN3
The pin function is switched as shown below according to the combination of the SCANE and
SCANE bits in ADCR and the CH2 to CH0 bits in ADCSR of the A/D converter, and the ISS3
bit in ISSR of the interrupt controller. Do not set these bits to other values than those shown in
the following table.
SCANE 0 1
SCANS X 0 1
CH2 to CH0 B'011 Other than B'011 B'011 Other than B'011 B'011 to
B'111
B'000 to B'010
ISS3 0 0 1 0 0 1 0 0 1
Pin function AN3
input pin
P73
input pin
ExIRQ3
input pin
AN3
input pin
P73 input
pin
ExIRQ3
input pin
AN3
input pin
P73 input
pin
ExIRQ3
input pin
[Legend] X: Don't care.
• P72/ExIRQ2/AN2
The pin function is switched as shown below according to the combination of the SCANE and
SCANE bits in ADCR and the CH2 to CH0 bits in ADCSR of the A/D converter, and the ISS2
bit in ISSR of the interrupt controller. Do not set these bits to other values than those shown in
the following table.
SCANE 0 1
SCANS X 0 1
CH2 to CH0 B'010 Other than B'010 B'010 to
B'011
Other than B'010 to
B'011
B'010 to
B'111
B'000 to B'001
ISS2 0 0 1 0 0 1 0 0 1
Pin function AN2
input pin
P72
input pin
ExIRQ2
input pin
AN2
input pin
P72 input
pin
ExIRQ2
input pin
AN2
input pin
P72 input
pin
ExIRQ2
input pin
[Legend] X: Don't care.