ATA接口定義圖
ATA 是 AT bus Attachment 的縮寫，由 Conner, Seagate 和 Western Digital 公司開發，是新版的 IDE 接口，ATA 接口在設備和主板側的外觀為 40 腳插針：
ATA 電纜外觀為：
|
引腳定義 |
|
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 (Pin missing) |
|
21 |
DMARQ |
? |
DMA Request |
|
22 |
GND |
Ground | |
|
23 |
/DIOW |
Write Strobe | |
|
24 |
GND |
Ground | |
|
25 |
/DIOR |
Read Strobe | |
|
26 |
GND |
Ground | |
|
27 |
IORDY |
I/O Ready | |
|
28 |
SPSYNC:CSEL |
? |
Spindle Sync or Cable Select |
|
29 |
/DMACK |
? |
DMA Acknowledge |
|
30 |
GND |
Ground | |
|
31 |
INTRQ |
Interrupt Request | |
|
32 |
/IOCS16 |
? |
IO ChipSelect 16 |
|
33 |
DA1 |
Address 1 | |
|
34 |
PDIAG |
? |
Passed Diagnostics |
|
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 |