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

White Electronic Designs

WED7PxxxCFA70xxI25

July 2005

Rev. 1

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

PIN ASSIGNMENTS AND PIN TYPE (cont'd)

PC Card Memory Mode

PC Card I/O Mode

True IDE Mode

Pin

Signal

Name

Pin Type

In, Out

Type

Pin

Signal

Name

Pin Type

In, Out

Type

Pin

Signal

Name

Pin Type

In, Out

Type

42

WAIT#

O

OT1

42

WAIT#

O

OT1

42

IORDY

O

ON1

43

INPACK#

O

OT1

43

INPACK#

O

OT1

43

DMARQ

O

OZ1

44

REG#

I

I3U

44

REG#

I

I3U

44

DMACK#

I

I3U

45

I/O

I4U,OT1

45

SPKR#

I/O

I4U,OT1

45

DASP#

I/O

I4U,ON1

46

I/O

I4U,OT1

46

STSCHG#

I/O

I4U,OT1

46

PDIAG#

I/O

I4U,ON1

47

I/O

I4Z,OZ1

47

I/O

I4Z,OZ1

47

I/O

I4Z,OZ1

48

I/O

I4Z,OZ1

48

I/O

I4Z,OZ1

48

I/O

I4Z,OZ1

49

I/O

I4Z,OZ1

49

I/O

I4Z,OZ1

49

I/O

I4Z,OZ1

50

GND

Ground

50

GND

Ground

50

GND

Ground

Notes: 1. These signals are required only for 16 bit access and not required when installed in 8 bit systems. Devices allow for 3-state signals to consume no current.

2. Should be grounded by the host.

ACCESS SPECIFICATIONS

1. Attribute access specifications

When CIS-ROM region or Configuration register region is accessed, read and write operations are executed under the

condition of REG# = ”L” as follows. That region can be accessed by Byte/Word/Odd-byte modes, which are defined by

PC card standard specifications.

Attribute Read Access Mode

Mode

REG#

CE2#

CE1#

A0

OE#

WE#

D8 to D15

D0 to D7

Standby mode

X

H

H

X

X

X

High-Z

High-Z

Byte access (8bit)

L

H

L

L

L

H

High-Z

even byte

L

H

L

H

L

H

High-Z

Invalid

Word access (16bit)

L

L

L

X

L

H

invalid

even byte

Odd byte access (8bit)

L

L

H

X

L

H

invalid

High-Z

Note: X → L or H

Attribute Write Access Mode

Mode

REG#

CE2#

CE1#

A0

OE#

WE#

D8 to D15

D0 to D7

Standby mode

X

H

H

X

X

X

Don’t care

Don’t care

Byte access (8bit)

L

H

L

L

H

L

Don’t care

even byte

L

H

L

H

H

L

Don’t care

Don’t care

Word access (16bit)

L

L

L

X

H

L

Don’t care

even byte

Odd byte access (8bit)

L

L

H

X

H

L

Don’t care

Don’t care

Note: X → L or H

Write CIS-ROM region is invalid.