40 pin IDC MALE connector at the controller & peripherals | Often, the control circuitry is built into the motherboard, eliminating the requirement for a separate Host Adapter.
There are 2 types of IDE interfaces...those for the 8-bit XT bus, and those for the 16-bit AT bus .
The cable for IDE contains 40 conductors and has no twists.
Like an SCSI cable, the IDE cable uses a Dual-row Pin connector for both ends.
A single cable may be used to connect two drives, or two cables may be Daisy-Chained.
Most IDE Host Adapters will support two hard drives.
The first drive should be jumpered as the Master drive, and the second as the Slave drive.
Plug-in IDE Host Adapters are often called Paddle-Boards, and may contain a floppy controller, and serial and parallel ports.
Pin
|
Name
|
Dir
|
Description |
1 |
/RESET
|
|
Reset
|
2 |
GND
|
|
Ground
|
3 |
DD7
|
|
Data 7 |
4 |
DD8
|
|
Data 8 |
5 |
DD6
|
|
Data 6 |
6 |
DD9
|
|
Data 9 |
7 |
DD5
|
|
Data 5 |
8 |
DD10
|
|
Data 10
|
9 |
DD4
|
|
Data 4 |
10
|
DD11
|
|
Data 11
|
11
|
DD3
|
|
Data 3 |
12
|
DD12
|
|
Data 12
|
13
|
DD2
|
|
Data 2 |
14
|
DD13
|
|
Data 13
|
15
|
DD1
|
|
Data 1 |
16
|
DD14
|
|
Data 14
|
17
|
DD0
|
|
Data 0 |
18
|
DD15
|
|
Data 15
|
19
|
GND
|
|
Ground
|
20
|
KEY
|
- |
Key
|
21
|
n/c
|
- |
Not connected
|
22
|
GND
|
|
Ground
|
23
|
/IOW
|
|
Write Strobe
|
24
|
GND
|
|
Ground
|
25
|
/IOR
|
|
Read Strobe
|
26
|
GND
|
|
Ground
|
27
|
IO_CH_RDY
|
|
|
28
|
ALE
|
|
Address Latch Enable
|
29
|
n/c
|
- |
Not connected
|
30
|
GND
|
|
Ground
|
31
|
IRQR
|
|
Interrupt Request
|
32
|
/IOCS16
|
? |
IO ChipSelect 16
|
33
|
DA1
|
|
Address 1 |
34
|
n/c
|
- |
Not connected
|
35
|
DA0
|
|
Address 0 |
36
|
DA2
|
|
Address 2 |
37
|
/IDE_CS0
|
|
(1F0-1F7)
|
38
|
/IDE_CS1
|
|
(3F6-3F7)
|
39
|
/ACTIVE
|
|
Led driver
|
40
|
GND
|
|
Ground
|
Note: Direction is Controller relative Devices (Harddisks) This information should be correct, but may be not. You can help us to improve this webpage! You can confirm this document to be correct (be careful), or report an error in document (error may be described in the following webpage). Result of your submission will be used for calculating document status shown at the bottom of this page. |
| 40 pin IDC FEMALE connector at the peripherals |