Hitachi H8S/2678 Series Reference Manual page 296

Table 5.33 Port F Pin Functions
Pin Selection Method and Pin Functions
PF7/ø The pin function is switched as shown below according to bit PF7DDR.
Operating
mode
PFDDR
Pin function
PF6/AS The pin function is switched as shown below according to the operating mode, bit
EXPE, bit PF6DDR, and bit ASOE.
Operating
mode
EXPE
ASOE
PF6DDR
Pin function
PF5/RD The pin function is switched as shown below according to the operating mode, bit
EXPE, and bit PF5DDR.
Operating
mode
EXPE
PF5DDR
Pin function
PF4/HWR The pin function is switched as shown below according to the operating mode, bit
EXPE, and bit PF4DDR.
Operating
mode
EXPE
PF4DDR
Pin function HWR output pin
0
PF7 input pin
1, 2, 4, 5, 6
—
1 0
— 0
AS
PF6 PF6
output input output
pin pin pin
1, 2, 4, 5, 6
—
—
RD output pin
PF5 input pin
1, 2, 4, 5, 6
—
—
PF4 input pin
1, 2, 4, 5, 6, 7
0
—
1 0 1
PF6 PF6
input output
pin pin
0
0
PF5 output pin
0
0
PF4 output pin HWR output pin
1
ø output pin
7
1
1 0
— 0
AS
PF6
output input output
pin pin
7
1
1 —
RD output pin
7
1
1 —
1
PF6
pin
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