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Parallel/Floppy Port
P
P
ARALLEL
ORT
The EBX-22 includes a standard bi-directional/EPP/ECP compatible LPT port (connector J29)
that resides at the PC standard address of 378h. The port can be enabled or disabled and interrupt
assignments can be made via CMOS Setup. The LPT mode is also set via CMOS Setup.
This connector uses IEC 61000-4-2-rated TVS components to help protect against ESD damage.
P
P
ARALLEL
ORT
The parallel port on the EBX-22 can be used as a floppy disk interface. To use this feature:
1. In CMOS Setup, select SIO > Parallel Port (J29) > Mode = [Floppy Drive (via CBL-
2501)].
2. Connect the floppy drive to connector J29 using the CBR-2501/CBR-2003 combination
cables.
EBX-22 Reference Manual
O
PERATION
Table 12: LPT Parallel/Floppy Port Pinout
Centronics
J29 Pin
Signal
1
Strobe
2
Auto feed
3
Data bit 0
4
Printer error
5
Data bit 1
6
Reset
7
Data bit 2
8
Select input
9
Data bit 3
10
Data bit 4
11
Data bit 5
12
Data bit 6
13
Data bit 7
14
Ground
15
Acknowledge
16
Ground
17
Port busy
18
Ground
19
Paper end
20
Printer select
F
D
LOPPY
ISK
Interfaces and Connectors
Signal
Direction
Out
Out
In/Out
In
In/Out
Out
In/Out
Out
In/Out
In/Out
In/Out
In/Out
In/Out
—
In
—
In
—
In
In
38
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