B&B Electronics SPPXP-100 - Manual - Manual (Page 16)

Using configuration utilities ExpressCard Parallel Port Adapter User’s Manual
Page 12 Rev 1.00 (July 2007)
Making external connections
The following figures and tables show the parallel port pinouts.
Figure 14 - DB-25 female parallel port connector
Table 1 - Parallel Port Pin Assignments
Pin # Source Compatible Nibble Byte ECP EPP
1 H
nStrobe HostClk HostClk HostClk nWrite
2
Bi-Di*
Data 1 (Least Significant Bit) AD1
3
Bi-Di*
Data 2 AD2
4
Bi-Di* Data 3 AD3
5
Bi-Di* Data 4 AD4
6
Bi-Di* Data 5 AD5
7
Bi-Di* Data 6 AD6
8
Bi-Di* Data 7 AD7
9
Bi-Di* Data 8 (Most Significant Bit) AD8
10
P nAck PtrClk PtrClk PeriphClk Intr
11
P Busy PtrBusy PtrBusy PeriphAck nWait
12
P PError AckDataReq AckDataReq nAckReverse User defined 1
13
P Select Xflag Xflag Xflag User defined 3
14
H nAutoFd HostBusy HostBusy HostAck nDStrb
15
P nFault nDataAvail nDataAvail nPeriphRequest User defined 2
16
H nInit nInit nInit nReverseRequest nInit
17
H nSelectIn
IEEE 1284 Active
nAStrb
18
Signal Ground (nStrobe)
19
Signal Ground (Data 1 and Data 2)
20
Signal Ground (Data 3 and Data 4)
21
Signal Ground (Data 5 and Data 6)
22
Signal Ground (Data 7 and Data 8)
23
Signal Ground (Busy and nFault)
24
Signal Ground (PError, Select, and nAck)
25
Signal Ground (nAutoFd, nSelectIn, and nInit)