Renesas ZTAT H8S/2357F, Hardware Manual

Page: 343 / 1047

Rev.6.00 Oct.28.2004 page 315 of 1016
REJ09B0138-0600H
9.10.3 Pin Functions
Mode 7 (On-Chip ROM Version Only): In mode 7, port C pins function as I/O ports. Input or output can be specified
for each pin on an individual bit basis. Setting a PCDDR bit to 1 makes the corresponding port C pin an output port, while
clearing the bit to 0 makes the pin an input port.
Port C pin functions in mode 7 are shown in figure 9-16.
PC
7
PC
6
PC
5
PC
4
PC
3
PC
2
PC
1
PC
0
Port C
(I/O)
(I/O)
(I/O)
(I/O)
(I/O)
(I/O)
(I/O)
(I/O)
Figure 9-16 Port C Pin Functions (Mode 7)
Mode 6 (On-Chip ROM Version Only): In mode 6, port C pins function as address outputs or input ports. Input or
output can be specified on an individual bit basis. Setting a PCDDR bit to 1 makes the corresponding port C pin an
address output, while clearing the bit to 0 makes the pin an input port.
Port C pin functions in mode 6 are shown in figure 9-17.
A
7
A
6
A
5
A
4
A
3
A
2
A
1
A
0
Port C
PC
7
PC
6
PC
5
PC
4
PC
3
PC
2
PC
1
PC
0
(input)
(input)
(input)
(input)
(input)
(input)
(input)
(input)
When PCDDR = 1 When PCDDR = 0
(output)
(output)
(output)
(output)
(output)
(output)
(output)
(output)
Figure 9-17 Port C Pin Functions (Mode 6)