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White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com

White Electronic Designs

WED7PxxxATA70xxI25

July 2005

Rev. 1

White Electronic Designs Corp. reserves the right to change products or specifications without notice.

PIN ASSIGNMENTS AND PIN TYPE

Pin #

Memory card mode

I/O Card Mode

True IDE Mode

Signal Name

I/O

Signal Name

I/O

Signal Name

I/O

1GND

GND

GND

2

D3

I/O

D3

I/O

D3

I/O

3

D4

I/O

D4

I/O

D4

I/O

4

D5

I/O

D5

I/O

D5

I/O

5

D6

I/O

D6

I/O

D6

I/O

6

D7

I/O

D7

I/O

D7

I/O

7

CE1#

I

CE1#

I

CE1#

I

8

A10

I

A10

I

A10

I

9

OE#

I

OE#

I

ATASEL#

I

10

N.C.

–

N.C.

–

N.C.

–

11

A9IA9IA9I

12

A8

I

A8

I

A8

I

13

N.C.

–

N.C.

–

N.C.

–

14

N.C.

–

N.C.

–

N.C.

–

15

WE#

I

WE#

I

WE#

I

16

RDY/BSY

O

IREQ#

O

INTRQ

O

17

Vcc

Vcc

Vcc

18

N.C.

–

N.C.

–

N.C.

–

19

N.C.

–

N.C.

–

N.C.

–

20

N.C.

–

N.C.

–

N.C.

–

21

N.C.

–

N.C.

–

N.C.

–

22

A7

I

A7

I

A7

I

23

A6IA6IA6I

24

A5

I

A5

I

A5

I

25

A4

I

A4

I

A4

I

26

A3IA3IA3I

27

A2

I

A2

I

A2

I

28

A1

I

A1

I

A1

I

29

A0

I

A0

I

A0

I

30

D0

I/O

D0

I/O

D0

I/O

31

D1

I/O

D1

I/O

D1

I/O

32

D2

I/O

D2

I/O

D2

I/O

33

WP

O

IOIS16#

O

IOIS16#

O

34

GND

–

GND

–

GND

–

Pin #

Memory card mode

I/O Card Mode

True IDE Mode

Signal Name

I/O

Signal Name

I/O

Signal Name

I/O

35

GND–GND–GND–

36

CD1#

O

CD1#

O

CD1#

O

37

D11

I/O

D11

I/O

D11

I/O

38

D12

I/O

D12

I/O

D12

I/O

39

D13

I/O

D13

I/O

D13

I/O

40

D14

I/O

D14

I/O

D14

I/O

41

D15

I

D15

I

D15

I

42

CE2#

I

CE2#

I

CE2#

I

43

VS1

O

VS1

O

VS1

O

44

IORD#

I

IORD#

I

IORD#

I

45

IOWR#

I

IOWR#

I

IOWR#

I

46

NC

–

NC

–

NC

–

47

NC

–

NC

–

NC

–

48

NC

–

NC

–

NC

–

49

NC

–

NC

–

NC

–

50

NC

–

NC

–

NC

–

51

Vcc

–

Vcc

–

Vcc

–

52

NC

–

NC

–

NC

–

53

NC

–

NC

–

NC

–

54

NC

–

NC

–

NC

–

55

NC

–

NC

–

NC

–

56

CSEL#

I

CSEL#

I

CSEL#

I

57

VS2

O

VS2

O

VS2

O

58

RESET

I

RESET

I

RESET#

I

59

Wait#

O

Wait#

O

IORDY

O

60

INPACK#

O

INPACK#

O

INPACK#

O

61

REG#IREG#IREG#I

62

BVD2

I/O

SPKR#

I/O

DASP

I/O

63

BVD1

I/O

STSCHG#

I/O

PDIAG#

I/O

64

D8

I/O

D8

I/O

D8

I/O

65

D9

I/O

D9

I/O

D9

I/O

66

D10

O

D10

O

D10

O

67

CD2#

O

CD2#

O

CD2#

O

68

GND–GND–GND–