X9268

FN8172 Rev.4.00

Page 14 of 22

August 29, 2006

Global XFR 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)

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

S

T

O

P

HIGH-VOLTAGE

WRITE CYCLE

0

1

0

1 A3 A2 A1 A0

1000 RB RA 0 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

HIGH-VOLTAGE

WRITE CYCLE

0

1

0

1 A3 A2 A1 A0

1110 RB RA 0

P0

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

1 1 0 1 RB RA 0

P0

S

T

A

R

T

Device Type

Identifier

Device

Addresses

S

A

C

K

Instruction

Opcode

DR/WCR

Addresses

S

A

C

K

Increment/Decrement

(Sent by Master on SDA)

S

T

O

P

01 01 A3 A2 A1 A0

00 100 0

0

P0

I/D I/D .

.

.

. I/D I/D