Port 7 Pin Functions - Hitachi H8/500 Series Hardware Manual

P7 and P7 can be used for timer reset input (TMRI) and timer clock input (TMCI) for the 8-bit
3 0
timer, as well as for general-purpose input and output.
Table 9-13 shows how the functions of the pins of port 7 are selected.
Table 9-13 Port 7 Pin Functions
Pin Selection of Pin Functions
P7 / The function depends on the output enable A bit (OEA) of the FRT1 timer control
7
FTOA register (TCR) and on the P7
1
OEA
P7
Pin function
P7 / The function depends on the output compare B bit (OEB) of the FRT3 timer control
6
FTOB / register (TCR) and on the P7
3
FTCI
3
OEB
P7
Pin function
P7 / The function depends on the output compare B bit (OEB) of the FRT2 timer control
5
FTOB / register (TCR) and on the P7
2
FTCI
2
OEB
P7
Pin function
P7 / The function depends on the output compare B bit (OEB) of the FRT1 timer control
4
FTOB / register (TCR) and on the P7
1
FTCI
1
OEB
P7
Pin function
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DDR 0
7
P7 input
7
DDR 0
6
P7 input
6
FTCI
DDR 0
5
P7 input
5
FTCI
DDR 0
4
P7 input
4
FTCI
DDR bit as follows:
7
0
1 0
P7 output
7
DDR bit as follows:
6
0
1 0
P7 output
6
input
3
DDR bit as follows:
5
0
1 0
P7 output
5
input
2
DDR bit as follows:
4
0
1 0
P7 output
4
input
1
170
1
1
FTOA output
1
1
1
FTOB output
3
1
1
FTOB output
2
1
1
FTOB output
1