120mA, 10Bit Current Sinking VCM Driver with I

Version：A.002

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VM149F

Data Format

VM149F Write Mode

In the writing mode, data is written to the VM149F and shifted into a 16-bit input register.

After all 16 bits of data have been shifted in, a STOP signal is generated by master

controller. The data in the input register is transferred to the DAC at the same time.

SCL

SDA

01

1

00

0

0

W

9

19

1

9

1

ACK by

11-VM149

ACK by

11-VM149

ACK by

11-VM149

STOP by

MASTER

START by

MASTER

FRAME 1

Serial Bus Address Byte

FRAME 2

Most Significant

Data Byte

FRAME 3

Least Significant

Data Byte

SPS

D9 D8 D7 D6 D5 D4

D3 D2 D1 D0 S3 S2 S1 S0

0

VM149F Read Mode

In reading mode, data is read from IC to a master controller in the same bit order.

STOP by

MASTER

SCL

SDA

01

1

00

0

0

R

9

19

1

9

1

ACK by

11-VM149

ACK by

MASTER

NACK by

MASTER

START by

MASTER

FRAME 1

Serial Bus Address Byte

FRAME 2

Most Significant

Data Byte

FRAME 3

Least Significant

Data Byte

SPS

D9 D8 D7 D6 D5 D4

D3 D2 D1 D0 S3 S2 S1 S0

0