(at the controller)
(at the controller)
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http://kiev-security.org.ua
ESDI=Enhanced Small Device Interface.
Developed by Maxtor in the early 1980's as an upgrade and improvement to the ST506 design.
(at the controller)
(at the controller)
(at the harddisk)
(at the harddisk)
34 PIN IDC MALE at the Controller.
20 PIN IDC MALE at the Controller.
34 PIN IDC FEMALE at the Harddisk.
20 PIN IDC FEMALE at the Harddisk.
| Pin | Name | Description |
|---|---|---|
| 2 | Head Sel 3 | |
| 4 | Head Sel 2 | |
| 6 | Write Gate | |
| 8 | Config/Stat Data | |
| 10 | Transfer Acknowledge | |
| 12 | Attention | |
| 14 | Head Sel 0 | |
| 16 | Sect/Add MK Found | |
| 18 | Head Sel 1 | |
| 20 | Index | |
| 22 | Ready | |
| 24 | Transfer Request | |
| 26 | Drive Sel 1 | |
| 28 | Drive Sel 2 | |
| 30 | Drive Sel 3 | |
| 32 | Read Gate | |
| 34 | Command Data |
Note: All odd are GND, Ground.
| Pin | Name | Description |
|---|---|---|
| 1 | Drive Selected | |
| 2 | Sect/Add MK Found | |
| 3 | Seek Complete | |
| 4 | Address Mark Enable | |
| 5 | (reserved, for step mode) | |
| 6 | GND | Ground |
| 7 | Write Clock+ | |
| 8 | Write Clock- | |
| 9 | Cartridge Changed | |
| 10 | Read Ref Clock+ | |
| 11 | Read Ref Clock- | |
| 12 | GND | Ground |
| 13 | NRZ Write Data+ | |
| 14 | NRZ Write Data- | |
| 15 | GND | Ground |
| 16 | GND | Ground |
| 17 | NRZ Read Data+ | |
| 18 | NRZ Read Data- | |
| 19 | GND | Ground |
| 20 | GND | Ground |
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