AS1116-BQFT(2009) Ver la hoja de datos (PDF) - austriamicrosystems AG
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AS1116-BQFT Datasheet PDF : 20 Pages
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AS1116
Datasheet - Detailed Description
Table 7. Register Address Map
Register
Diagnostic Digit 0
Address
D15 D14 D13 D12 D11 D10 D9 D8
X1010100
Diagnostic Digit 1 X 1 0 1 0 1 0 1
Diagnostic Digit 2 X 1 0 1 0 1 1 0
Diagnostic Digit 3 X 1 0 1 1 0 1 1
Diagnostic Digit 4 X 1 0 1 1 0 0 0
Diagnostic Digit 5 X 1 0 1 1 0 0 1
Diagnostic Digit 6 X 1 0 1 1 0 1 0
Diagnostic Digit 7 X 1 0 1 1 0 1 1
D7:D0
Page
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
Note: Write operation: D14=0; Read operation: D14=1.
The Shutdown Register controls AS1116 shutdown mode.
Table 8. Shutdown Register Format (Address (HEX) = 0x0C))
Mode
Shutdown Mode, Reset Feature Register to Default Settings
Shutdown Mode, Feature Register Unchanged
Normal Operation, Reset Feature Register to Default Settings
Normal Operation, Feature Register Unchanged
HEX
Register Data
Code D7 D6 D5 D4 D3 D2 D1 D0
0x00 0 X X X X X X 0
0x80 1 X X X X X X 0
0x01 0 X X X X X X 1
0x81 1 X X X X X X 1
Decode Enable Register (0x09)
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 14) 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 10 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 10 lists the code-B font; Table 11 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
AS1116. Table 12 shows the 1:1 pairing of each data bit to the appropriate segment line.
Table 9. Decode Enable Register Format Examples
Decode Mode
No decode for digits 7:0
Code-B/HEX decode for digit 0. No decode for digits 7:1
Code-B/HEX decode for digit 0:2. No decode for digits 7:3
Code-B/HEX decode for digits 0:5. No decode for digits 7:6
Code-B/HEX decode for digits 0,2,5. No decode for digits 1, 3, 4, 6, 7
HEX
Code
0x00
0x01
0x07
0x3F
0x25
Register Data
D7 D6 D5 D4 D3 D2 D1 D0
0000000 0
00000001
00000111
00111111
00100101
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