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AS1106PL Datasheet(PDF) 9 Page - ams AG

Part # AS1106PL
Description  8-Digit LED Display Drivers
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Manufacturer  AMSCO [ams AG]
Direct Link  http://www.ams.com
Logo AMSCO - ams AG

AS1106PL Datasheet(HTML) 9 Page - ams AG

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www.austriamicrosystems.com
Revision 2.2
9 - 20
AS1106, AS1107
austriamicrosystems
Data Sheet
Digit- and Control-Registers
Shutdown Register (0xXC)
The Shutdown Register controls AS1106/AS1107 shutdown mode (see Shutdown Mode on page 8).
Decode Enable Register (0xX9)
The Decode Enable Register sets the decode mode. BCD/HEX decoding (either BCD code – characters 0:9, E, H, L,
P, and -, or HEX code – characters 0:9 and A:F) is selected by bit D2 (page 12) of the Feature Register. The Decode
Enable Register is used to select the decode mode or no-decode for each digit. Each bit in the Decode Enable Regis-
ter corresponds to its respective display digit (i.e., bit D0 corresponds to digit 0, bit D1 corresponds to digit 1 and so
on). Table 9 lists some examples of the possible settings for the Decode Enable Register bits.
Note: A logic high enables decoding and a logic low bypasses the decoder altogether.
When decode mode is used, the decoder looks only at the lower-nibble (bits D3:D0) of the data in the Digit-Registers,
disregarding bits D6:D4. Bit D7 sets the decimal point (SEG DP) independent of the decoder and is positive logic (bit
D7 = 1 turns the decimal point on). Table 9 lists the code-B font; Table 10 lists the HEX font.
When no-decode mode is selected, data bits D7:D0 of the Digit-Registers correspond to the segment lines of the
AS1106/AS1107. Table 11 shows the 1:1 pairing of each data bit to the appropriate segment line.
Figure 12. Standard 7-Segment LED Intensity Control and Inter-Digit Blanking
Table 7. Shutdown Register Format (Address (HEX) = 0xXC))
Mode
HEX Code
Register Data
D7
D6
D5
D4
D3
D2
D1
D0
Shutdown Mode,
Reset Feature Register to Default Settings
0x00
0
XXXXXX
0
Shutdown Mode, Feature Register Unchanged
0x80
1
XXXXXX
0
Normal Operation,
Reset Feature Register to Default Settings
0x01
0
XXXXXX
1
Normal Operation, Feature Register Unchanged
0x81
1
XXXXXX
1
Table 8. Decode Enable Register Format (Address (HEX) = 0xX9))
Decode Mode
HEX Code
Register Data
D7
D6
D5
D4
D3
D2
D1
D0
No decode for digits 7:0
0x00
000000
0
0
Code-B/HEX decode for digit 0. No decode for digits 7:1
0x01
000000
01
Code-B/HEX decode for digits 3:0. No decode for digits 7:4
0x0F
000011
11
Code-B/HEX decode for digits 7:0
0xFF
111111
11
Table 9. 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
00
00
11
11110
1
X
00
01
01
10000
2
X
00
10
11
01101
3
X
00
11
11
11001
4
X
01
00
01
10011
A
B
G
F
E
D
C
DP


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