MCP4922 SPI DAC:
The write command is initiated by driving the CS pin
low, followed by clocking the four configuration bits and
the 12 data bits into the SDI pin on the rising edge of
SCK. The CS pin is then raised, causing the data to
be latched into the selected DAC’s input registers.
All writes to the MCP492X are 16-bit words. Any
clocks past 16 will be ignored. The most significant
four bits are configuration bits. The remaining 12 bits
are data bits. |
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