Input/Output Interfaces

5.3PATA Interface

The USDT system board includes a SATA-to-PATA bridge and slim IDE connector that supports an IDE-type optical disk drive. The pinout for this connector is listed in Table 5-2

The 44-pin slim IDE connector is shown in the figure below.

2

44

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

43

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Figure 5-2. 44-pin Slim IDE Connector (P21on system board).

Table 5-2.

44-Pin Slim IDE Connector Pinout

Pin

Signal

Pin

Signal

 

Pin

Signal

Pin

Signal

 

 

 

 

 

 

 

 

 

1

RESET#

2

GND

 

23

DIOW#

24

GND

 

 

 

 

 

 

 

 

 

3

DD7

4

DD8

 

25

DIOR#

26

GND

 

 

 

 

 

 

 

 

 

5

DD6

6

DD9

 

27

IORDY

28

CSEL

 

 

 

 

 

 

 

 

 

7

DD5

8

DD10

 

29

DMACK#

30

GND

 

 

 

 

 

 

 

 

 

9

DD4

10

DD11

 

31

INTRQ

32

NC

 

 

 

 

 

 

 

 

 

11

DD3

12

DD12

 

33

DA1

34

PDIAG#

 

 

 

 

 

 

 

 

 

13

DD2

14

DD13

 

35

DA0

36

DA2

 

 

 

 

 

 

 

 

 

15

DD1

16

DD14

 

37

CS0#

38

CS1#

 

 

 

 

 

 

 

 

 

17

DD0

18

DD15

 

39

IDEACT#

40

GND

 

 

 

 

 

 

 

 

 

19

GND

20

Key (no pin)

 

41

5V

42

5V

 

 

 

 

 

 

 

 

 

21

DMARQ

22

GND

 

43

GND

44

Reserved

 

 

 

 

 

 

 

 

 

 

Technical Reference Guide

www.hp.com

5-3

Page 57
Image 57
HP dc7800 manual Pata Interface, Pin Slim IDE Connector Pinout, Pin Signal