Xycom XVME-956 Series Manual page 52

•
3.3.4 P a r a l l e l Port Configuration and Connection
Table 3-16 lists the connector pin assignments for the parallel port at J3. I n addition to the pins of
connector J3, Table 3-16 also lists the corresponding pins for the DB25F parallel connector cable
supplied with the unit. T h e pinout of J3 is such that it allows the use of a flat ribbon cable between J3
and a PC/AT compatible DB25F parallel connector.
SIGNAL NAME
-STROBE
Data 0
Data 1
Data 2
Data 3
Data 4
•
Data 5
Data 6
Data 7
-ACK
BUSY
PAPER EMPTY
SEL OUT
-AUTOFD
-ERROR
-INIT
-SEL IN
Beyond the choice of I/O base address and interrupt described in the previous sections, there is only
one jumper that affects the parallel port at J3. This is W20, which controls whether the parallel port
will function as a standard PC/AT printer port (output only) or as a bidirectional data port.
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Table 3-16. J3 Pin Assignments
FUNCTION
Output data strobe
Data bit (LSB)
.
• .
• .
Data bit (MSB)
Character accepted
Cannot receive data
Out of paper
Printer
selected
Auto feed
Printer error
Initialize printer
Selects printer
-POE Port output enable
GND Signal ground
IN/OUT
out
I/O
I/O
• .
I/O
I/O
I/O
I/O
I/O
I/O
in
in
in
in
out
in
out
out
in
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956 Manual
August 1994
DB25f
J3
PIN PIN
1 1
3 2
5 3
7 4
9 5
11 6
13 7
15 8
17 9
10
19
21 11
23 12
25 13
14
2
4 15
6 16
8 17
26 --
10, 12 18-25
14, 16
18, 20
22, 24
3-13