8. I/O Ports
Rev.3.00 Jul. 19, 2007 page 201 of 532
REJ09B0397-0300
8.7
Port 9 [Chip-Internal I/O port]
Port 9 functions are common to the H8/3857 Group and H8/3854 Group.
8.7.1 Overview
Port 9 is an 8-bit I/O port that interfaces to the on-chip LCD controller. The port 9 pin
configuration is shown in figure 8.6.
P9
5
P9
6
P9
7
P9
0
P9
4
Note: Dotted lines indicate connections inside the chip.
P9
3
P9
2
P9
1
Port 9
LCD
controller
DB
5
DB
6
DB
7
DB
0
DB
4
DB
3
DB
2
DB
1
Figure 8.6 Port 9 Pin Configuration
8.7.2
Register Configuration and Description
Table 8.17 shows the port 9 register configuration.
Table 8.17 Port 9 Registers
Name Abbr.
R/W
Initial
Value
Address
Port data register 9
PDR9
R/W
H'00
H'FFDC
Port control register 9
PCR9
W
H'00
H'FFEC
Summary of Contents for F-ZTAT H8 Series
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