10

FN8166.5

April 13, 2007

Instruction Format

Read Wiper Counter Register (WCR)

Write Wiper Counter Register (WCR)

Read Data Register (DR)

Write Data Register (DR)

Global Transfer Data Register (DR) to Wiper Counter Register (WCR)

NOTES:

1. “A1 ~ A0”: stands for the device addresses sent by the master.

2. WPx refers to wiper position data in the Counter Register

3. “I”: stands for the increment operation, SI held HIGH during active SCK phase (high).

4. “D”: stands for the decrement operation, SI held LOW during active SCK phase (high).

CS

Falling

Edge

Device Type

Identifier

Device

Addresses

Instruction

Opcode

WCR

Addresses

Wiper Position

(Sent by X9251 on SO)

CS

Rising

Edge

0101

0

0

A1

A0

1

0

0

1

0

0

0

0

W

C

R

7

W

C

R

6

W

C

R

5

W

C

R

4

W

C

R

3

W

C

R

2

W

C

R

1

W

C

R

0

CS

Falling

Edge

Device Type

Identifier

Device

Addresses

Instruction

Opcode

WCR

Addresses

Data Byte

(Sent by Host on SI)

CS

Rising

Edge

0

1

0

1

0

0

A1

A0

1

0

1000

0

0

W

C

R

7

W

C

R

6

W

C

R

5

W

C

R

4

W

C

R

3

W

C

R

2

W

C

R

1

W

C

R

0

CS

Falling

Edge

Device Type

Identifier

Device

Addresses

Instruction

Opcode

DR and WCR

Addresses

Data Byte

(Sent by X9271 on SO)

CS

Rising

Edge

01

0100

A1

A0

1

0

1

1

RB

RA

P1

P0

D

7

D

6

D

5

D

4

D

3

D

2

D

1

D

0

CS

Falling

Edge

Device Type

Identifier

Device

Addresses

Instruction

Opcode

DR and WCR

Addresses

Data Byte

(Sent by Host on SI)

CS

Rising

Edge

HIGH-VOLTAGE

WRITE CYCLE

0

1

0

1

00

A1

A0

11

00

RB

RA

P1

P0

D

7

D

6

D

5

D

4

D

3

D

2

D

1

D

0

CS

Falling

Edge

Device Type

Identifier

Device

Addresses

Instruction

Opcode

DR

Addresses

CS

Rising

Edge

0

1

0

1

0

0

A1

A0

0

001

RB

RA

00

X9251