Hitachi H8/500 Series - E) Schematic Diagram of Port 1, Pin P1

Table C-1 (e) Port 1 Port Read (Pin P14)
Mode Setting Port Read Data
WMS 1 = 1 Pin value
1,2,3,4 WMS 1 DDR = 0 Pin value
= 0 DDR = 1 DR value
DDR = 0 Pin value
DDR = 1 DR value
RP1
WAIT to CPU
P1
4
WMS1
Q
Wait-state control
register, bit 3
Mode 1, 2, 3,
or 4
WP1
C
R
QD
P1 DR
4
C
R
QD
P1 DDR
4
Reset
Reset
WP1D:
WP1:
RP1:
Write to P1DDR
Write to Port 1
Read Port 1
Internal data bus (PDB12)
WP1D
7
Figure C-1 (e) Schematic Diagram of Port 1, Pin P14
410
Downloaded from Elcodis.com electronic components distributor