User's Manual

A-6 Specifications
Parallel B Interface
The parallel B (IEEE 1284-I compliant) interface connector pin
assignments are shown in the table below.
Pin Direction Compatibility Nibble ECP
1 IN nStrobe HostClk HostClk
2 IN/OUT DATA1 DATA1 DATA1
3 IN/OUT DATA2 DATA2 DATA2
4 IN/OUT DATA3 DATA3 DATA3
5 IN/OUT DATA4 DATA4 DATA4
6 IN/OUT DATA5 DATA5 DATA5
7 IN/OUT DATA6 DATA6 DATA6
8 IN/OUT DATA7 DATA7 DATA7
9 IN/OUT DATA8 DATA8 DATA8
10 OUT nACK PtrClk PeriphClk
11 OUT Busy PrtBusy PeriphAck
12 OUT PError AckDataReq NaCKrEVERSE
13 OUT Select Xflag Xflag
14 IN nAutoFd HostBusy HostAck
15 — NC NC NC
16 — GND GND GND
17 — CG CG CG
18 OUT Peripheral
Logic High
Peripheral
Logic High
Peripheral Logic
High
19 - 30 — GND GND GND
31 IN nlnit nlnit nReverseRequest
32 OUT nFault nDataAvail nPeriphRequest
33 — GND GND GND
34 — NC NC NC
35 OUT +5V +5V +5V
36 IN nSelectln IEEE1284
Active
IEEE1284 Active