Hitachi F-ZTAT H8/3039 Series Hardware Manual page 158

7.4.3 Pin Functions in Each Mode
The pin functions of port 3 differ between modes 1, 3 and 5 and modes 6 and 7. The pin functions
in each mode are described below.
Modes 1, 3 and 5: All pins of port 3 automatically become data input/output pins. Figure 7-10
shows the pin functions in modes 1, 3 and 5.
Modes 6 and 7: Input or output can be selected separately for each pin in port 3. A pin becomes
an output pin if the corresponding P3DDR bit is set to 1, and an input pin if this bit is cleared to 0.
Figure 7-11 shows the pin functions in modes 6 and 7.
Port 3
Figure 7-10 Pin Functions in Modes 1, 3 and 5 (Port 3)
Port 3
Figure 7-11 Pin Functions in Modes 6 and 7 (Port 3)
D (input/output)
7
D (input/output)
6
D (input/output)
5
D (input/output)
4
D (input/output)
3
D (input/output)
2
D (input/output)
1
D (input/output)
0
P3 (input/output)
7
P3 (input/output)
6
P3 (input/output)
5
P3 (input/output)
4
P3 (input/output)
3
P3 (input/output)
2
P3 (input/output)
1
P3 (input/output)
0
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