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2.5 Digital I/O
The OME-A-822PGL/PGH provides 16 digital input channels and 16
digital output channels. All levels are TTL compatible. The connection
diagram and block diagram are given below:
Latch
Reset
Power on
reset
Reset
Latch
D0..D7
Base+D
Base+E
D0..D7
D8..D15
1..8
9..16
Output Latch Register
Output Latch Register
CN2
17..18
DGND
DGND
DI
TTL
External
Device
OME-A-822PGL/PGH
Rea
d
Read
D0..D7
Base+6
Base+7
D0..D7
D8..D15
1..8
9..16
Input Buffer Register
Input Buffer Register
CN1
17..18
DGND
DGND
DO
TTL
OME-A-822PGL/PGH
External
Device
OME-A-822PGL/PGH Hardware Manual ---- 25