Data Sheet AS1100
A
F
E
B
G
C
D
DP
Figure 2: Standard 7-segment LED
Duty Cycle D7 D6 D5 D4 D3 D2 D1 D0 Hex Code
1/32 (min on)
3/32
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0xX0
0xX1
0xX2
0xX3
0xX4
0xX5
0xX6
0xX7
0xX8
0xX9
0xXA
0xXB
0xXC
0xXD
0xXE
0xXF
5/32
7/32
9/32
11/32
13/32
15/32
17/32
19/32
21/32
23/32
25/32
27/32
29/32
31/32 (max on)
Table 7: Intensity register format (address (hex) = 0xXA)
Register Data
Hex Code
Scan Limit
D7 D6 D5 D4 D3 D2 D1 D0
Display digit 0 only
Display digits 0 & 1
Display digits 0 1 2
Display digits 0 1 2 3
Display digits 0 1 2 3 4
Display digits 0 1 2 3 4 5
Display digits 0 1 2 3 4 5
6
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
0
0
0
1
1
0
0
1
1
0
0
0
1
0
1
0
1
0xX0
0xX1
0xX2
0xX3
0xX4
0xX5
X
X
X
X
X
X
X
X
X
X
1
1
1
1
0
1
0xX6
0xX7
Display digits 0 1 2 3 4 5
6 7
Table 8: Scan-limit register format (address (hex) = 0xXB)
Revision 1.32, Oct. 2004
Page 7 of 12
AMSCO [ AMS(艾迈斯) ]
