¡ Semiconductor

MSM9210

13/19

[Bit correspondence between segment output and segment data]

1

S1

17

S17

2

S2

18

S18

3

S3

19

S19

4

S4

20

S20

5

S5

21

S21

6

S6

22

S22

7

S7

23

S23

8

S8

24

S24

9

S9

25

S25

10

S10

26

S26

11

S11

27

S27

12

S12

28

S28

13

S13

29

S29

14

S14

30

S30

15

S15

31

S31

16

S16

32

S32

SEG n

Segment data

SEG n

Segment data

Digital Dimming Data Input [Function Mode: 4]

• MSM9210 receives the digital dimming data when function mode 4 is selected.

• The output duty changes in the range of 0/1024 (0%) to 1016/1024 (99.2%) for each grid.

• The 10-bit digital dimming data is input from LSB.

[Data Format]

Input Data

: 13 bits

Digital Dimming Data: 10 bits

Mode Data

: 3 bits

1

D1

2

D2

3

D3

4

D4

7

D7

8

D8

9

D9

10

D10

11

M0

12

M1

13

M2

Bit

Input Data

Digital Dimming Data (10bits)

Mode Data

(3bits)

5

D5

6

D6

D10

0

0

1

1

1

1

D9

0

0

1

1

1

1

D8

0

0

1

1

1

1

D7

0

0

1

1

1

1

D6

0

0

1

1

1

1

D5

0

0

1

1

1

1

D4

0

0

0

1

1

1

D3

0

0

1

0

0

1

D2

0

0

1

0

0

1

D1

0

1

1

0

1

1

Dimming Data

(MSB)

(LSB)

Duty Cycle

0/1024

1/1024

1015/1024

1016/1024

1016/1024

1016/1024

LSB

MSB

Master Mode

Master Mode is selected when M/S pin is set at High level. The master mode operation is as

follows:

• The input levels of DIM IN, SYNC IN1 and SYNC IN2 are ignored, and these pins should be

• The pulse width of GRID1 to 3 and SEG1 to 32 are controlled by the internal digital dimming

circuit.

• The segment Latch1 to 3 corresponding to GRID1 to 3 are selected by the internal timing

generator.