HD6475328-CP10 Datasheet, PDF (435/459 Pages) Hitachi Semiconductor – original Hitachi CMOS microcomputer unit (MCU)

Reset
R
QD
P9 5 DDR
C
WP9D
Reset
WP9D: Write to P9DDR
WP9: Write to Port 9
RP9: Read Port 9
R
P95
QD
P9 5 DR
C
WP9
SCI timer module
Output enable
Serial transfer data
RP9
Figure C-9 (c) Schematic Diagram of Port 9, Pin P95
Table C-9 (c) Port 9 Port Read (Pin P95)
Setting
Output enable
Output disable
DDR = 0
DDR = 1
Port Read Data
Serial transfer data
Pin value
DR value
426