243
Table 5.16
Port 8 Pin Functions
Pin
Selection Method and Pin Functions
P85/
IRQ5
/
EDACK3
The pin function is switched as shown below according to the combination of bit
AMS in EDMDR3 of the EXDMAC, bit P85DDR, and bit ITS5 in ITSR.
Modes 1, 2, 4, 5, 6, 7 (EXPE = 1)
AMS
0
1
P85DDR
0
1
—
Pin function
P85 input pin
P85 output pin
EDACK3
output
IRQ5
interrupt input
*
Mode 7 (EXPE = 0)
AMS
—
P85DDR
0
1
Pin function
P85 input pin
P85 output pin
IRQ5
interrupt input
*
Note:
*
IRQ5
input when ITS5 = 1.
P84/
IRQ4
/
EDACK2
The pin function is switched as shown below according to the combination of bit
AMS in EDMDR2 of the EXDMAC, bit P84DDR, and bit ITS4 in ITSR.
Modes 1, 2, 4, 5, 6, 7 (EXPE = 1)
AMS
0
1
P84DDR
0
1
—
Pin function
P84 input pin
P84 input/output
EDACK2
output
IRQ4
interrupt input
*
Mode 7 (EXPE = 0)
AMS
—
P84DDR
0
1
Pin function
P84 input pin
P84 output pin
IRQ4
interrupt input
*
Note:
*
IRQ4
input when ITS4 = 1.
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