10

FN8248.3

October 13, 2008

ONE 6-BIT WIPER COUNTER REGISTER FOR EACH

XDCP.

{D5~D0}: These bits specify the wiper position of the

respective XDCP. The Wiper Counter Register is loaded on

power-up by the value in Data Register 0. The contents of

the WCR can be loaded from any of the other Data Register

or directly. The contents of the WCR can be saved in a DR.

Instruction Format

NOTES:

1. “MACK”/”SACK”: stands for the acknowledge sent by the master/slave.

2. A3 ~ A0”: stands for the device addresses sent by the master.

3. X”: indicates that it is a “0” for testing purpose but physically it is a “don’t care” condition.

4. “I”: stands for the increment operation, SDA held high during

active SCL phase (high).

5. “D”: stands for the decrement operation, SDA held low during active SCL phase (high).

Read Wiper Counter Register (WCR)

Write Wiper Counter Register (WCR)

Read Data Register (DR)

Write Data Register (DR)

S

T

A

R

T

DEVICE

TYPE

IDENTIFIER

DEVICE

ADDRESSES

S

A

C

K

INSTRUCTION

OPCODE

S

A

C

K

WIPER POSITION

(SENT BY SLAVE ON SDA)

M

A

C

K

S

T

O

P

01

01

A

3

A

2

0A

0

1

0

0

1

00

00

00

W

P

5

W

P

4

W

P

3

W

P

2

W

P

1

W

P

0

S

T

A

R

T

DEVICE

TYPE

IDENTIFIER

DEVICE

ADDRESSES

S

A

C

K

INSTRUCTION

OPCODE

S

A

C

K

WIPER POSITION

(SENT BY MASTER ON SDA)

S

A

C

K

S

T

O

P

01

01

A

3

A

2

0A

0

1

0

1

0

00

00

00

W

P

5

W

P

4

W

P

3

W

P

2

W

P

1

W

P

0

S

T

A

R

T

DEVICE

TYPE

IDENTIFIER

DEVICE

ADDRESSES

S

A

C

K

INSTRUCTION

OPCODE

REGISTER

ADDRESSES

S

A

C

K

WIPER POSITION/DATA

(SENT BY SLAVE ON SDA)

M

A

C

K

S

T

O

P

0101

A

3

A

2

0A

0

1

011

R

1

R

0

00

00

W

P

5

W

P

4

W

P

3

W

P

2

W

P

1

W

P

0

S

T

A

R

T

DEVICE

TYPE

IDENTIFIER

DEVICE

ADDRESSES

S

A

C

K

INSTRUCTION

OPCODE

REGISTER

ADDRESSES

S

A

C

K

WIPER POSITION/DATA

(SENT BY MASTER ON

SDA)

S

A

C

K

S

T

O

P

HIGH-VOLTAGE

WRITE CYCLE

010

1A

3

A

2

0A

0

110

0

R

1

R

0

00

0

0

W

P

5

W

P

4

W

P

3

W

P

2

W

P

1

W

P

0

X9429