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8. I/O Ports
8.9
Port B
Some port B functions differ between the H8/3857 Group and the H8/3854 Group.
Pins PB
to PB
/AN
3
0
3
Group.
8.9.1
Overview
Port B is an 8-bit input-only port. The H8/3857 Group port B pin configuration is shown in figure
8.8 (a), and the H8/3854 Group port B pin configuration in figure 8.8 (b).
Figure 8.8 (a) H8/3857 Group Port B Pin Configuration
Figure 8.8 (b) H8/3854 Group Port B Pin Configuration
Rev.3.00 Jul. 19, 2007 page 206 of 532
REJ09B0397-0300
to AN
are provided only in the H8/3857 Group, and not in the H8/3854
0
Port B
Port B
PB /AN
7
7
PB /AN
6
6
PB /AN
5
5
PB /AN
4
4
PB /AN
3
3
PB /AN
2
2
PB /AN
1
1
PB /AN
0
0
PB
/AN
7
7
PB
/AN
6
6
PB
/AN
5
5
PB
/AN
4
4
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