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 Description : Harddisk ATA Internal (standart)
 
 
  40 PIN IDC MALE at the controller & peripherals
 
 
  40 PIN IDC FEMALE at the cable
 
 Pinout :
 
 
 | Pin | Name | 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 | 
 Note : ATA=AT bus Attachment..
Developed by Western Digital, Conner & Seagate
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