Chapter 5: LPT1 parallel port, LCD and keypad
LPT1 parallel port
LPT1 uses a 26-pin connector. It supports the unidirectional standard mode, bi-
directional mode, enhanced parallel port (EPP) mode, and extended capabilities
port (ECP) mode. The default I/O address for LPT1 is 378h, with the default
interrupt is IRQ7. You can choose the addresses 378h, 278h, or 3BCh, or interrupt
IRQ5 in Setup.
The LPT1 port supports a number of devices including a PC compatible printer, an
LCD display, or a keypad.
Table 5–1 LPT1 connector: J19
J19 – LPT1 connector
Pin #
Pin Name
Pin Name
Pin #
1 STB*
AFD* 2
3 PD[0] ERR* 4
5 PD[1] INIT* 6
7 PD[2] SLIN* 8
9 PD[3] Gnd
10
11 PD[4]
Gnd
12
13 PD[5]
Gnd
14
15 PD[6]
Gnd
16
17 PD[7]
Gnd
18
19 ACK*
Gnd
20
21 BUSY
Gnd
22
23 PE
Gnd
24
25 SLCT
VCC5
26
* = active low
Installing a printer
1. Make sure that the LPT1 port is in standard or bi-directional mode.
2. Connect an Octagon VTC–5/IBM cable from the LPT1 port (J19) to the 25-pin
connector on your printer cable.
3. Connect the cable to your printer.
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Содержание XE-700
Страница 18: ...Figure 2 1 XE 700 SBC component diagram top 18 ...
Страница 19: ...Figure 2 2 XE 700 SBC component diagram bottom 19 ...
Страница 20: ...Figure 2 3 XE 700 SBC dimensions 20 ...