HD6475328-CP10 Datasheet, PDF (419/459 Pages) Hitachi Semiconductor – original Hitachi CMOS microcomputer unit (MCU)

Reset
R
QD
WP1D: Write to P1DDR
WP1: Write to Port 1
RP1: Read Port 1
P14 DDR
C
WP1D
Reset
R
P14
QD
P14 DR
C
WP1
Mode 1, 2, 3,
or 4
Wait-state control
register, bit 3
WMS1
Q
RP1
WAIT to CPU
Figure C-1 (e) Schematic Diagram of Port 1, Pin P14
Table C-1 (e) Port 1 Port Read (Pin P14)
Mode
1,2,3,4
7
Setting
WMS 1 = 1
WMS 1
=0
DDR = 0
DDR = 1
DDR = 0
DDR = 1
Port Read Data
Pin value
Pin value
DR value
Pin value
DR value
410