www.austriamicrosystems.com/LED-Driver-ICs/AS1100

Revision 1.37

8 - 16

AS1100

Datasheet - D e t a i l e d D e s c r i p t i o n

Note:

The decimal point is set by bit D7 = 1

Table 7. Decode-mode Register Examples (address (hex) = 0xX9

Decode Mode

Register Data

Hex Code

D7

D6

D5

D4

D3

D2

D1

D0

No decode for digits 7–0

0

0

0

0

0

0

0

0

0x00

Code B decode for digit 0

No decode for digits 7–1

0

0

0

0

0

0

0

1

0x01

Code B decode for digits 3–0

No decode for digits 7– 4

0

0

0

0

1

1

1

1

0x0F

Code B decode for digits 7–0

1

1

1

1

1

1

1

1

0xFF

Table 8. Code B font

7-Segment

Character

Register Data

On Segments = 1

D7*

D6-D4

D3

D2

D1

D0

DP*

A

B

C

D

E

F

G

0

X

0

0

0

0

1

1

1

1

1

1

0

1

X

0

0

0

1

0

1

1

0

0

0

0

2

X

0

0

1

0

1

1

0

1

1

0

1

3

X

0

0

1

1

1

1

1

1

0

0

1

4

X

0

1

0

0

0

1

1

0

0

1

1

5

X

0

1

0

1

1

0

1

1

0

1

1

6

X

0

1

1

0

1

0

1

1

1

1

1

7

X

0

1

1

1

1

1

1

0

0

0

0

8

X

1

0

0

0

1

1

1

1

1

1

1

9

X

1

0

0

1

1

1

1

1

0

1

1

--

X

1

0

1

0

0

0

0

0

0

0

1

E

X

1

0

1

1

1

0

0

1

1

1

1

H

X

1

1

0

0

0

1

1

0

1

1

1

L

X

1

1

0

1

0

0

0

1

1

1

0

P

X

1

1

1

0

1

1

0

0

1

1

1

blank

X

1

1

1

1

0

0

0

0

0

0

0

Table 9. No-decode Mode Data Bits and Corresponding Segment Lines

Register Data

D7

D6

D5

D4

D3

D2

D1

D0

Corresponding Segment Line

DP

A

B

C

D

E

F

G