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Parallel Interface (IEEE-1284)
Pin No. Source Compatibil
ity Mode
Nibble
Mode
Byte Mode
1 Host nStrobe HostClk HostClk
2 Host / Printer Data 0 (LSB) - Data 0 (LSB)
3 Host / Printer Data 1 - Data 1
4
Host / Printer Data 2
- Data 2
5
Host / Printer Data 3
- Data 3
6 Host / Printer Data 4 - Data 4
7 Host / Printer Data 5 - Data 5
8 Host / Printer Data 6 - Data 6
9 Host / Printer Data 7 (MSB) - Data 7 (MSB)
10 Printer nAck PtrClk PtrClk
11 Printer Busy PtrBusy /Data3,7 PtrBusy
12 Printer Perror
AckDataReq
/Data2,6
AckDataReq
13 Printer Select
Xflag
/Data1,5
Xflag
14 Host nAutoFd HostBusy HostBusy
15 - NC NC NC
16 - GND GND GND
17
- FG
FG FG
18
Printer Logic-H
Logic-H Logic-H
19~30 - GND GND GND
31
Host nInit
nInit nInit
32 Printer nFault
nDataAvail
/Data0,4
nDataAvail
33
- GND
ND ND
34
Printer DK_Status
ND ND
35
Printer +5V
ND ND
36 Host nSelectIn 1284-Active 1284-Active