Chapter 6: LPT1 parallel port
LPT1 parallel port
LPT1 is a multifunction parallel port, which is accessed through the multipurpose
connector, J2. It supports the unidirectional standard mode, bi-directional mode,
enhanced parallel port (EPP) mode, extended capabilities port (ECP) mode, as well
as a floppy drive. The default I/O address for LPT1 is 378h, with the default
interrupt is IRQ7. You can choose the addresses 278h or 3BCh, or interrupt IRQ5,
in the 2060 CPU Card BIOS Setup utility.
If the LPT port is used for a floppy drive it cannot be used at the same time as a
printer port.
Mating receptacle
Use the 2060 HDC-18-SBC-Multiport cable to connect the LPT port to external
parallel equipment. The LPT connector is a DB–25 female connector which plugs
directly into a 25-pin parallel cable. Table 6–1 shows the pinout for the LPT
connector. Table A–12 on page 114 shows the pinout for the J2 connector.
Note
See
pages
26 and 27, and Appendix A – Mating connectors for mating information
on the multipurpose connector.
Table 6–1
LPT1 connector pinout (on the Multiport cable)
LPT1 connector
DB-25
Pin #
J2
Pin #
Pin
Name
Pin
Name
J2
Pin #
DB-25
Pin#
1 A1
STB* AFD*
A2
14
2 A3
PD[0]
ERR*
A4
15
3 A5
PD[1]
INIT*
A6
16
4 A7
PD[2]
SLIN*
A8
17
5 A9
PD[3]
Gnd A10
18
6 A11
PD[4]
Gnd A12
19
7 A13
PD[5]
Gnd A14
20
8 A15
PD[6]
Gnd A16
21
9 A17
PD[7]
Gnd A18
22
10 A19
ACK* Gnd A20
23
11 A21
BUSY Gnd A22
24
12 A23
PE
Gnd A24
25
13 A25
SLCT*
* = active low
56
Содержание 2060 PC/104
Страница 20: ...Figure 2 1 2060 CPU Card component diagram top 20 ...
Страница 21: ...Figure 2 2 2060 CPU Card component diagram bottom 21 ...
Страница 22: ...Figure 2 3 2060 CPU Card dimensions 22 ...