237
Pin
Selection Method and Pin Functions
P74/
DACK0
/
EDACK0
The pin function is switched as shown below according to the combination of bit
DMACS in PFCR2, bit SAE0 in DMABCRH, bit AMS in EDMDR0, and bit
P74DDR.
Modes 1, 2, 4, 5, 6, 7 (EXPE = 1)
AMS
0
1
SAE0
0
1
—
DMACS
—
0
1
—
P74DDR
0
1
0
1
—
—
Pin function
P74
input
pin
P74
output
pin
P74
input
pin
P74
output
pin
DACK0
output
pin
EDACK0
output
pin
Mode 7 (EXPE = 0)
AMS
—
SAE0
0
1
DMACS
—
0
1
P74DDR
0
1
0
1
—
Pin function
P74
input pin
P74
output pin
P74
input pin
P74
output pin
DACK0
output pin
Содержание H8S/2670
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