MAX1040 Datasheet, PDF (31/44 Pages) Maxim Integrated Products – 10-Bit, Multichannel ADCs/DACs with FIFO, Temperature Sensing, and GPIO Ports

10-Bit, Multichannel ADCs/DACs with FIFO,
Temperature Sensing, and GPIO Ports
Table 17. DAC Serial-Interface Configuration
16-BIT SERIAL WORD
MSB
CONTROL
BITS
DATA BITS
C3 C2 C1 C0 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
0 0 0 0 XXXXXXXXXX
0 0 0 1 0 XXXXXXXXX
0 0 0 1 1 XXXXXXXXX
0 0 1 0 ——————————
LSB
XX
XX
XX
XX
XX
DESCRIPTION
NOP
RESET
Pull-High
DAC0
FUNCTION
No Operation.
Reset all internal registers to 000h and
leave output buffers in their present
state.
Preset all internal registers to FFFh and
leave output buffers in their present
state.
D9–D0 to input register 0, DAC output
unchanged.
0 0 1 1 —————————— X X
DAC1
D9–D0 to input register 1, DAC output
unchanged.
0 1 0 0 —————————— X X
DAC2
D9–D0 to input register 2, DAC output
unchanged.
0 1 0 1 —————————— X X
DAC3
D9–D0 to input register 3, DAC output
unchanged.
0 1 1 0 XXXXXXXXXXXX
0 1 1 1 XXXXXXXXXXXX
1 0 0 0 XXXXXXXXXXXX
1 0 0 1 XXXXXXXXXXXX
1 0 1 0 —————————— X X
1 0 1 1 XXXXXXXXXXXX
1 1 0 0 —————————— X X
NOP
NOP
NOP
NOP
DAC0–DAC3
NOP
DAC0–DAC3
No Operation.
No Operation.
No Operation.
No Operation.
D9–D0 to input registers 0–3 and DAC
register 0–3. DAC outputs updated
(write-through).
No Operation.
D9–D0 to input registers 0–3 and DAC
Register 0–3. DAC outputs updated
(write-through).
1 1 0 1 — — — — — — — — — — X X DAC0–DAC3 ^{D9–D0 to input registers 0–3. DAC}
outputs unchanged.
1110XXXX
XXXX
DAC0–DAC3
Input registers to DAC registers
indicated by ones, DAC outputs
updated, equivalent to software LDAC.
(No effect on DACs indicated by zeros.)
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