ATA接口是AT bus Attachment 的缩写,那么到底什么是ata接口呢,其实我们平时用的并口硬盘都是ata接口的,他是由由Conner, Seagate 和 Western Digital 公司开发,现在的硬盘接口大多为ata接口的扩展版本,ATA 接口在设备和主板侧的外观为40脚插针(现在为80线了): ata接口图
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
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