AT INTERFACE DESCRIPTION

SECTION 5

AT Interface Description

Interface Connector

All DiamondMax® 60 AT drives have a 40-pin ATA interface connector mounted on the PCBA. The drive may connect directly to the host; or it can also accommodate a cable connection (maximum cable length: 18 inches).

Figure 5-1

Data Connector

Pin Description Summary

PIN

SIGNAL

 

PIN

SIGNAL

01

Reset -

 

02

Ground

03

D D 7

 

04

D D 8

05

D D 6

 

06

D D 9

07

D D 5

 

08

DD10

09

D D 4

 

10

DD11

11

D D 3

 

12

DD12

13

D D 2

 

14

DD13

15

D D 1

 

16

DD14

17

D D 0

 

18

DD15

19

Ground

 

20

(keypin)

21

DMARQ

 

22

Ground

23

DIOW -:STOP

 

24

Ground

25

DIOR -:HDMARDY:HSTROBE

 

26

Ground

27

IORDY:DDMARDY:DSTROBE

 

28

CSEL

29

DMACK -

 

30

Ground

31

INTRQ

 

32

IOCS16

 

Obsolete

 

 

 

 

33

DA1

 

34

PDIAG -

35

DA0

 

36

DA2

37

CS0 -

 

38

CS1 -

39

DASP -

 

40

Ground

5 – 1

Page 25
Image 25
Maxtor 93073H4, 96147H8, 91536H2, 94610H6 AT Interface Description, Interface Connector, Pin Description Summary, PIN Signal