AR-B9673 User’s Guide
8
3. CONNECTION
This chapter describes how to connect peripherals, switches and indicators to the AR-B9673 board.
3.1 ULTRA ATA33/66/100 IDE DISK DRIVE CONNECTOR (IDE1)
•
IDE1: Primary IDE Connector
A 40-pin header type connector (IDE1) is provided to interface with up to two embedded hard disk drives (IDE AT
bus). This interface, through a 40-pin cable, allows the user to connect up to two drives in a “daisy chain” fashion.
To enable or disable the hard disk controller, please use the BIOS Setup program, which is explained further in
chapter 5. The following table illustrates the pin assignments of the hard disk drive’s 40-pin connector.
1
39
2 40
Pin
Signal
Pin
Signal
1 -RESET
2 GROUND
3
DATA 7
4
DATA 8
5
DATA 6
6
DATA 9
7
DATA 5
8
DATA 10
9
DATA 4
10
DATA 11
11
DATA 3
12
DATA 12
13
DATA 2
14
DATA 13
15
DATA 1
16
DATA 14
17
DATA 0
18
DATA 15
19
GROUND 20
N.C
21
PDDREQ 22
GROUND
23
-PDIOW 24
GROUND
25
-PDIOR 26
GROUND
27
PIORDY 28
GROUND
29
-PDDACK 30 GROUND
31
IRQ14 32
N.C
33
PDA1 34
PD66/100
35
PDA0 36
PDA2
37
-PDCS1 38
-PDCS3
39
HLEDP 40
GROUND
