Ampro Corporation 5001451A manual Eide Hard Disk Interface, Floppy Interface Connector J14

If you don’t use the floppy interface, disable it in Setup. This frees the floppy’s I/O addresses, IRQ6, and DMA channel 2 for use by other peripherals installed on the PC/104 bus.

Floppy Interface Connector (J14)

Table 2-25shows the pinout and signal definitions of the floppy disk interface connector, J14. This pinout does not meet the AT standard for floppy drive cables. An adapter board can be purchased from Ampro that will interface the 26-pin 2mm connector to a standard 3.5” floppy disk connector.

Table 2-25. Floppy Disk Interface Connector (J14)

Pin #	Signal Name	Function	In/Out
1	KEY	Cable Key Pin	N/A
2	DEN	Speed/Precomp	OUT
4	IDX*	Index Pulse	IN
6	MO1*	Motor On 1	OUT
8	DS2*	Drive Select 2	OUT
10	DS1*	Drive Select 1	OUT
11	MO2*	Motor On 2	OUT
12	DIRC*	Direction Select	OUT
14	STEP*	Step	OUT
15	WD*	Write Data	OUT
16	WE*	Write Enable	OUT
18	TRKO*	Track 0	IN
20	WP*	Write Protect	IN
22	RDD*	Read Data	IN
24	HS*	Head Select	OUT
26	DCHG*	Disk Change	IN
-	Other Odd Pins	Signal grounds	N/A

EIDE Hard Disk Interface

The Little Board P6d system provides an interface for up to four Integrated Device Electronics (IDE) peripheral devices, such as hard disk drives and CD-ROM drives.

The primary IDE interface appears at connector J6, a 44-pin 2mm, dual-row connector.

The secondary IDE interface appears at connector J7, also a 44-pin 2mm, dual-row connector.

Table 2-26shows the interface signals and pin outs for the IDE interface connectors. Both pinouts are identical.

2-26