Appendix Description of the physical interface
T5023/5023+ - Programming Guide 379
Pin-No. Source ECP-Mode CompatibleM ode
24 Signal Ground
(Data 5) Signal Ground
(Data 5)
25 Signal Ground
(Data 6) Signal Ground
(Data 6)
26 Signal Ground
(Data 7) Signal Ground
(Data 7)
27 Signal Ground
(Data 8) Signal Ground
(Data 8)
28 Signal Ground (PError,
Select, nAck) SignalGround (PError,
Select, nAck)
29 Signal Ground (Busy,
nFault) Signal Ground (Busy,
nFault)
30 Signal Ground
(nAutoFd, nSelectIn,
nInit)
Signal Ground
(nAutoFd, nSelectIn,
nInit)
31 Host nReverseRequest nInit
32 Printer nPeriphRequest nFault
33 Not defined Not defined
34 Not defined Not defined
35 Not defined Not defined
36 Host 1284 Active nSelectIn