11

FN8166.5

April 13, 2007

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

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

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

Increment/Decrement Wiper Counter Register (WCR)

Read Status Register (SR)

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

DR

Addresses

CS

Rising

Edge

HIGH-VOLTAGE

WRITE CYCLE

0

1

0

1

00

A1

A0

1000

RB

RA

00

CS

Falling

Edge

Device Type

Identifier

Device

Addresses

Instruction

Opcode

DR and WCR

Addresses

CS

Rising

Edge

HIGH-VOLTAGE

WRITE CYCLE

0

1

0

1

00

A1

A0

11

10RBRA

0

0

CS

Falling

Edge

Device Type

Identifier

Device

Addresses

Instruction

Opcode

DR and WCR

Addresses

CS

Rising

Edge

0

1

0

1

00A1A0

1101

RB

RA

0

0

CS

Falling

Edge

Device Type

Identifier

Device

Addresses

Instruction

Opcode

WCR

Addresses

Increment/Decrement

(Sent by Master on SI)

CS

Rising

Edge

0

1

0

1

0

0

A1

A0

0

0

1

0

X

X

0

0

I/D

I/D

.

.

.

.

I/D

I/D

CS

Falling

Edge

Device Type

Identifier

Device

Addresses

Instruction

Opcode

WCR

Addresses

Data Byte

(Sent by X9251 on SO)

CS

Rising

Edge

0

1

0

1

00

A1

A0

0101

0001

0

0

0

0

0

0

0

WIP

X9251