245
Pin
Selection Method and Pin Functions
P81/
IRQ1
/
EDREQ3
The pin function is switched as shown below according to the combination of bit
P81DDR and bit ITS1 in ITSR.
P81DDR
0
1
Pin function
P81 input pin
P81 output pin
EDREQ3
input pin
IRQ1
interrupt input
*
Note:
*
IRQ1
input when ITS1 = 1.
P80/
IRQ0
/
EDREQ2
The pin function is switched as shown below according to the combination of bit
P80DDR and bit ITS0 in ITSR.
P80DDR
0
1
Pin function
P80 input pin
P80 output pin
EDREQ2
input pin
IRQ0
interrupt input
*
Note:
*
IRQ0
input when ITS0 = 1.
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