APPENDIX B
Connectors
B-2
▌B.2 IEEE1284 Parallel I/F
PARALLEL
Interface connector
Drawer kick-out
Connector
▌B.2.1 IEEE 1284 Parallel I/F signal specifications
(Compatibility / Nibble / Byte mode)
Pin no. Source Compatibility 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 ND ND
16 - GND GND GND
17 - GND FG FG
18 Printer Logic-H Logic-H Logic-H
19~30 - GND GND GND
31 Host nInit nInit nInit
32 Printer nFault nDataAbail / nDataAvail
33 - NC ND ND
34 Printer NC ND ND
35 Printer NC ND ND
36 Host nSelectln 1284-Active 1284-Active
