Ampro Corporation PCI-104 quick start Signal OnBoard Description Pin #

Appendix B I/O Interface Board

Table B-3 lists the interface between Utility 2a (J5) and the other connectors/devices on the I/O Board.

Table B-3. Utility 2a Interface Pin/Signal Descriptions (J5)

J5	Signal	OnBoard	Description
Pin #		Pin #
1	STB*	J12-1	Parallel Strobe* – Output used to strobe data into the printer. I/O pin
			in ECP/EPP mode.
	NC	J11-14	Not connected (DS0 – Drive Select 0)
2	AFD*	J12-2	Parallel Auto Feed – This is a Request signal sent to the printer to
			automatically feed one line after each line is printed.
	DEN0	J11-2	Floppy Drive Density Select Bit 0 – This signal indicates a low
			(250/300 kbps) or high (500 kbps) data rate has been selected.
3	PD0	J12-3	Parallel Data 0 – These signals (0 to 7) provide the parallel port data
			to the printer.
	INDEX*	J11-8	Floppy Index – Sense detects the head is positioned over the
			beginning of a track
4	ERR*	J12-4	Parallel Error – This is a Status output signal from the printer. A Low
			State indicates an error condition on the printer.
	HDSel*	J11-32	Floppy Head Select – Selects FDD side for Read/Write operations
			(0 = side 1, 1 = side 0)
5	PD1	J12-5	Parallel Data 1 – Refer to PD0, pin 3, for more information.
	TRK0	J11-26	Floppy Track 0 – Sensor detects the head is positioned over track 0.
6	PInit*	J12-6	Parallel Initialize – This signal used to Initialize printer. Output in
			standard mode, I/O in ECP/EPP mode.
	DIR*	J11-18	Floppy Direction – Direction of floppy head movement
			(0 = inward motion, 1 = outward motion).
7	PD2	J12-7	Parallel Data 2 – Refer to PD0, pin 3, for more information.
	WrtPrt*	J11-28	Floppy Write Protect – Senses the diskette is write protected.
8	SLIn*	J12-8	Parallel Select In – This signal used to select the printer. I/O pin in
			ECP/EPP mode.
	STEP*	J11-20	Floppy Step – Low pulse for each track-to-track movement of the head.
9	PD3	J12-9	Parallel Data 3 – Refer to PD0, pin 3, for more information.
	RData*	J11-30	Floppy Read Data – Raw serial bit stream from the drive for read
			operations.
10	SMB_	U3-11	SMBus Alert – This pin receives signals from thermal monitor (U3).
	Alert	J10-3	SMBus Alert – This pin sends/receives to/from external devices.
11	PD4	J12-11	Parallel Data 4 – Refer to PD0, pin 3, for more information.
	DskChg*	J11-34	Floppy Disk Change – Senses the drive door is open or the diskette
			has been changed since the last drive selection.
12	GND	GND	Ground
13	PD5	J12-13	Parallel Data 5 – Refer to PD0, pin 3, for more information.
14	GND	GND	Ground
15	PD6	J12-15	Parallel Data 6 – Refer to PD0, pin 3, for more information.
	NC	J11-10	Not Connected (MTR0 – Motor Control 0)
16	GND	GND	Ground

26 QuickStart Guide CoreModule 800