Little Board/P5x Technical Manual
2–35
Table 2– 27 (cont.). IDE Interface Connectors (J12, J17)

Pin Signal Name Function In/Out

30 GND Ground OUT
31 HOST IRQ14 Drive interrupt request IN
32 IDE16 IOCS16 OUT
33 HOST A1 Drive address 1 OUT
34 RSVD Reserved N/C
35 HOST A0 Drive address 0 OUT
36 HOST A2 Drive address 2 OUT
37 HOST CS0* Chip select OUT
38 HOST CS1* Chip select OUT
39 RSVD Reserved N/C
40 GND Ground OUT
Table 2– 30. J12, J17 Mating Connectors

Connector Type Mating Connector

RIBBON, 40 wire 3M 3417-7600
Latching Clip 3505-8040
DISCRETE WIRE MOLEX HOUSING 22-55-2402
PIN 16-02-0103

IDE Interface Configuration

Use Setup to specify your IDE hard disk drive types. Ref er to th e Setu p sec tion beg innin g on page
2–62 for details.
If you do not find a drive type whose displayed parameters match the drive you are using, use drive
type USER. It allows you to manually enter the drive’s parameter s. The driv e man ufactu rer
provides the drive parameters—check the drive’s documentation for the proper values to enter.
If you are using a newer IDE drive, use drive type AUTO. It automatically configures the drive type
parameters from information provided by the drive itself.
Compact Flash Solid-State Disk
The Little Board/P5x connector J23 supports a Compact Flash device, a solid-state IDE hard-disk
emulator. It acts as a removable hard-disk drive. You can format, read, and write the Compact
Flash device much as you would a standard IDE drive.