11

FN8169.5

April 13, 2007

Instruction Format

Read Wiper Counter Register (WCR)

Write Wiper Counter Register (WCR)

Read Data Register (DR)

Write Data Register (DR)

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

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).

S

T

A

R

T

Device Type

Identifier

Device

Addresses

S

A

C

K

Instruction

Opcode

DR/WCR

Addresses

S

A

C

K

Wiper Position

(Sent by X9259 on SDA) M

A

C

K

S

T

O

P

0101 A3 A2 A1 A0

1 0 0 1 0 0 P1 P0

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

S

T

A

R

T

Device Type

Identifier

Device

Addresses

S

A

C

K

Instruction

Opcode

DR/WCR

Addresses

S

A

C

K

Wiper Position

(Sent by Master on SDA) S

A

C

K

S

T

O

P

0101 A3 A2 A1 A0

1 0 1 0 0 0 P1 P0

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

S

T

A

R

T

Device Type

Identifier

Device

Addresses

S

A

C

K

Instruction

Opcode

DR/WCR

Addresses

S

A

C

K

Wiper Position

(Sent by X9259 on SDA) M

A

C

K

S

T

O

P

0 1 0 1 A3 A2 A1 A0

1011 RB RA P1 P0

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

S

T

A

R

T

Device Type

Identifier

Device

Addresses

S

A

C

K

Instruction

Opcode

DR/WCR

Addresses

S

A

C

K

Wiper Position

(Sent by Master on SDA) S

A

C

K

S

T

O

P

0101 A3 A2 A1 A0

1100 RB RA P1 P0

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

S

T

A

R

T

Device Type

Identifier

Device

Addresses

S

A

C

K

Instruction

Opcode

DR/WCR

Addresses

S

A

C

K

S

T

O

P

0

1

0

1 A3 A2 A1 A0

0 0 0 1 RB RA

0

0

X9259