Rev AB January 16, 2011

Document Number: SP-AP-0198

Page 7 of 16

SL38160-17AH

SL38160-23AH

Byte Read and Byte Write Protocol

Byte Write Protocol

Byte Read Protocol

Bit

Description

Bit

Description

1

Start

1

Start

8:2

Slave address-7bits

8:2

Slave address-7bits

9

Write

9

Write

10

Acknowledge from slave

10

Acknowledge from slave

18:11

Command Code-8bits

18:11

Command Code-8bits

19

Acknowledge from slave

19

Acknowledge from slave

27:20

Data byte-8bits

20

Repeat start

28

Acknowledge from slave

27:21

Slave address-7bits

29

Stop

28

Read

29

Acknowledge from slave

37:30

Byte Count from slave 8bits

38

NOT Acknowledge

39

Stop

Note: When writing to any register bytes between 32d to 63d (20h to 40h), an additional

byte outside this range must be written to immediately afterward for proper loading to the

register bytes within this range.

I2C-bus Timing Specification

PARAMETER

SYMBOL

STANDARD-MODE

FAST-MODE

UNIT

MIN.

MAX.

MIN.

MAX.

SCL Clock

Frequency

0

100

0

400

KHz

START hold

time

4.0

-

0.6

-

us

SCLK LOW

period

4.7

-

1.3

-

us

SCLK HIGH

period

4.0

-

0.6

-

us

START

Set-up time

4.7

-

0.6

-

us