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J591 APCI-IB40
I/O Outputs Enabled by Software
LK20-24 are used to select between permanent or software enabled output buffers. When software
control is selected the output buffers are enabled by writing 01H to the software enable register at
index 90H.
Note:- A jumper must be fitted to each link, to ensure correct operation.
User Configuration Record Diagram
Link
I/O Lines
Position A + Position B
LK20
0-7
Software
Permanent
LK21
8-15
Software
Permanent
LK22
16-23
Software
Permanent
LK23
24-31
Software
Permanent
LK24
32-39
Software
Permanent
Link
Default
User
LK1
A
LK3
OPEN
LK4
OPEN
LK10
A
LK11
LK12
LK13
LK14
LK20
LK21
LK22
LK23
LK24
A
A
A
A
A
A
A
A
A
