Quatech SPPXP-100 Making external connections, Using configuration utilities, Page, Rev 1.00 July

Using configuration utilities Quatech ExpressCard Parallel Port Adapter User’s Manual

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)

Page 12 Rev 1.00 (July 2007)