Распиновка, расположение выводов и внешний вид устройства хранения данных:
ESDI
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.
Control connector
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.
Data connector
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
Contributor:
Joakim Цgren
Source:
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Copyright © The Hardware Book Team 1996-2004.
May be copied and redistributed, partially or in whole, as appropriate.
Document last modified: 2002-01-10