Programmer
Manual
PTX
‐
S828
Appendix
B
‐
Interfaces
365
260071
‐
001A
The pins 1 to 14 of the printer are connected to the pins with the same number of the parallel port of the
host.
The pins 19 to 30 of the printer are connected to the pins 18 to 25 of the parallel port of the host.
The pins 31, 32 and 36 of the printer are connected respectively to the pins 16, 15 and 17 of the parallel port
of the host.
1284 Mode signal names are shown with their Compatibility mode (Centronics) names in parenthesis ( ) for
the bidirectional link.
Signal Name
Pin N° for
Pin N° for
Signal Wire
Return Wire Source
HostClk (nStrobe)
1
19
HOST
AD1 (Data 1)
2
20
HOST in Compatibility mode and negotiation
phase.
AD2 (Data 2)
3
21
AD3 (Data 3)
4
22
NOT USED in Nibble mode.
AD4 (Data 4)
5
23
AD5 (Data 5)
6
24
BIDIRECTIONAL in Byte mode.
AD6 (Data 6)
7
25
AD7 (Data 7)
8
26
AD8 (Data 8)
9
27
PrtClk (nAck)
10
28
PRINTER
PrtBusy (Busy)
11
29
PRINTER
AckDataReq
(PError)
13
28
PRINTER
Xflag (Select)
14
28
PRINTER
HostBusy
(nAutofd)
15
30
HOST
Peripheral
Logic
High
18
PRINTER
(+5 V)
n.a. (nInit)
31
30
HOST
nDataAvail (NFault)
32
29
PRINTER
1284 Active (NSelectIn)
36
30
Common Logic Ground
16 and Return Wires
Chassis Ground
17
Parallel Interface Signals Behaviour
HostClk /nWrite (nStrobe)
Compatibility Mode:
Set Active low to transfer data into printer input latch. Data is valid while nStrobe is
low.
Negotiation Phase:
Set active low to transfer extendibility request value into printer input latch. Data is
valid on the falling edge of HostClk.
Reverse Data Transfer Set high during Nibble Mode transfer to avoid latching data into printer. Pulsed
Phase:
low during Byte Mode transfers to acknowledge transfer of data from the printer.
The printer shall ensure that this pulse does not transfer a new data into the printer
input latch.
AD1 ... AD8 (Data 1 ... Data 8)
Compatibility Mode:
Forward channel data.
Negotiation Phase:
Extendibility request value.
Reverse Data Transfer Nibble Mode: NOT USED.
Phase:
Byte Mode: Reverse channel data.
Summary of Contents for S828
Page 1: ...Prog M gra Ma am anu me ual er s s...
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Page 348: ...Programmer Manual PTX S828 Appendix A Code Pages 346 260071 001A FARSI 1 Figure 129 Farsi 1...
Page 349: ...Programmer Manual PTX S828 Appendix A Code Pages 347 260071 001A FARSI 2 Figure 130 Farsi 2...
Page 351: ...Programmer Manual PTX S828 Appendix A Code Pages 349 260071 001A CWI Figure 132 CWI...
Page 352: ...Programmer Manual PTX S828 Appendix A Code Pages 350 260071 001A Roman 8 Figure 133 Roman 8...
Page 353: ...Programmer Manual PTX S828 Appendix A Code Pages 351 260071 001A IN2 Figure 134 IN2...
Page 354: ...Programmer Manual PTX S828 Appendix A Code Pages 352 260071 001A Turkish Figure 135 Turkish...
Page 356: ...Programmer Manual PTX S828 Appendix A Code Pages 354 260071 001A 96 GREEK Figure 137 96GREEK...
Page 384: ...Programmer Manual PTX S828 Appendix D Lan Interface MIB Support 382 260071 001A...
Page 388: ...Programmer Manual PTX S828 Appendix F Printer Driver Support 386 260071 001A...
Page 396: ...Programmer Manual PTX S828 Appendix I Configuration Menu Lockout 394 260071 001A...
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