Datasheet

Section 8 I/O Ports
Rev. 2.00 Sep. 28, 2009 Page 212 of 870
REJ09B0429-0200
8.7.2 Pin Functions
• P77/ExIRQ7/AN7
The pin function is switched as shown below according to the combination of the CH2 to CH0
bits in ADCSR of the A/D converter and the ISS7 bit in ISSR of the interrupt controller. Do
not set these bits to other values than those shown in the following table.
Setting the ISS7 bit in ISSR makes the pin to function as the ExIRQ7 input pin.
CH2 to CH0 B'111 Other than B'111
ISS7 0 0 1
Pin function AN7 input pin P77 input pin ExIRQ7 input pin
• P76/ExIRQ6/AN6
The pin function is switched as shown below according to the combination of the SCANE bit
in ADCR and the CH2 to CH0 bits in ADCSR of the A/D converter, and the ISS6 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
CH2 to CH0 B'110 Other than B'110 B'110 to
B'111
B'000 to B'101
ISS6 0 0 1 0 0 1
Pin function AN6 input
pin
P76 input
pin
ExIRQ6
input pin
AN6 input
pin
P76 input
pin
ExIRQ6
input pin