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MAX1220_10 Datasheet, PDF (32/43 Pages) Maxim Integrated Products – 12-Bit, Multichannel ADCs/DACs with FIFO, Temperature Sensing, and GPIO Ports | |||
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12-Bit, Multichannel ADCs/DACs with FIFO,
Temperature Sensing, and GPIO Ports
Table 20. DAC Serial-Interface Configuration
16-BIT SERIAL WORD
MSB
LSB
CONTROL
BITS
DATA BITS
DESCRIPTION
FUNCTION
C3 C2 C1 C0 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
0 0 00XXXXXXX XXXXX
NOP
No operation.
0 0 01 0X 0XXXX XXXXX
RESET
Reset all internal registers to 000h and
leave output buffers in their present state.
0 0 01 1X 1XXXX XXXXX
Pull-High
Preset all internal registers to FFFh and
leave output buffers in their present state.
0 0 1 0 ââââââââââââ
DAC0
D11âD0 to input register 0,
DAC output unchanged.
0 0 1 1 ââââââââââââ
DAC1
D11âD0 to input register 1,
DAC output unchanged.
0 1 0 0 ââââââââââââ
DAC2
D11âD0 to input register 2,
DAC output unchanged.
0 1 0 1 ââââââââââââ
DAC3
D11âD0 to input register 3,
DAC output unchanged.
0 1 1 0 ââââââââââââ
DAC4
D11âD0 to input register 4,
DAC output unchanged.
0 1 1 1 ââââââââââââ
DAC5
D11âD0 to input register 5,
DAC output unchanged.
1 0 0 0 ââââââââââââ
DAC6
D11âD0 to input register 6,
DAC output unchanged.
1 0 0 1 ââââââââââââ
DAC7
D11âD0 to input register 7,
DAC output unchanged.
D11âD0 to input registers 0â3 and DAC
1 0 1 0 â â â â â â â â â â â â DAC0âDAC3 registers 0â3. DAC outputs updated
(write-through).
D11âD0 to input registers 4â7 and DAC
1 0 1 1 â â â â â â â â â â â â DAC4âDAC7 registers 4â7. DAC outputs updated
(write-through).
D11âD0 to input registers 0â7 and DAC
1 1 0 0 â â â â â â â â â â â â DAC0âDAC7 registers 0â7. DAC outputs updated
(write-through).
1 1 0 1 â â â â â â â â â â â â DAC0âDAC7 D11âD0 to input registers 0â7.
DAC outputs unchanged.
1110
Input registers to DAC registers indicated
X
X
X
X
DAC0âDAC7
by ones, DAC outputs updated,
equivalent to software LDAC.
(No effect on DACs indicated by zeros.)
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