HD6475328CG Datasheet, PDF (430/459 Pages) Hitachi Semiconductor – Manual Gives a Hardware Description

Reset
R
QD
P7n DDR
C
WP7D: Write to P7DDR
WP7: Write to Port 7
RP7: Read Port 7
n:
4, 5 or 6
WP7D
Reset
R
P7n
QD
P7n DR
C
WP7
Free-running timer module
Output enable
Output compare output
RP7
Counter clock output
Figure C-7 (d) Schematic Diagram of Port 7, Pins P74, P75 and P76
Table C-7 (d) Port 7 Port Read (Pins P74 – P76)
Setting
Output enable
Output disable
DDR = 0
DDR = 1
Port Read Data
Output compare output value
Pin value
DR value
421