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Parallel C interface
The parallel C (IEEE 1284-II compliant) interface connector pin
assignments and a description of the interface signals are shown in the
table below.
Pin No. Direction IEEE1284-C connector
Compatibility Nibble ECP
1 OUT Busy PtrBusy PeriphAck
2 OUT Select Xflag
3 OUT nAck PtrClk PeriphClk
4 OUT nFault nDataAvail nPriphRequest
5 OUT PError AckDataReq nAckReverse
6 IN/OUT DATA1
7 IN/OUT DATA2
8 IN/OUT DATA3
9 IN/OUT DATA4
10 IN/OUT DATA5
11 IN/OUT DATA6
12 IN/OUT DATA7
13 IN/OUT DATA8
14 IN nlnit nReverseRequest
15 IN nStrobe HostClk
16 IN nSelectln IEEE1284 Active
17 IN nAutoFd HostBusy HostAck
18 IN HostLogicHigh
19 - 35 GND
36 OUT PeripheralLogic High
Note:
The column heading “Direction” refers to the direction of signal flow as viewed
from the printer.
R
Albatross Rev.c
A5 size Appendix A
96/08/23 pass 0
Technical Specifications
A-7