8. I/O Ports
Rev.3.00 Jul. 19, 2007 page 203 of 532
REJ09B0397-0300
8.7.4 Pin
States
Table 8.19 shows the port 9 pin states in each operating mode.
Table 8.19 Port 9 Pin States
Pins Reset
Sleep
Subsleep
Standby Watch
Subactive
Active
P9
7
to P9
0
High-
impedance
Retains
previous
state
Retains
previous
state
High-
impedance
Retains
previous
state
Functional Functional
8.8
Port A [Chip-Internal I/O port]
Port A functions are common to the H8/3857 Group and H8/3854 Group.
8.8.1 Overview
Port A is a 4-bit I/O port that interfaces to the on-chip LCD controller. The port A pin
configuration is shown in figure 8.7.
PA
3
PA
2
PA
1
PA
0
RS
R/
W
STRB
Note: Dotted lines indicate connections inside the chip.
Port A
LCD
controller
Figure 8.7 Port A Pin Configuration
Summary of Contents for F-ZTAT H8 Series
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