In the datasheet for AD5669R page Page 24. Multi byte operation (MB mode) it says:
"A 2-byte operation is useful for applications that require fast DAC updating and do not need to change the command byte."
I cannot figure out how this works because the subsequent description is unclear. It says
"The S bit (DB22) in the command register can be set to 1 for the 2-byte mode of operation. For standard 3-byte and 4-byte operation, the S bit (DB22) in the command byte should be set to 0."
So the command is 1001, but then the description mentions the S bit (DB22) being set in command register. But this would mean that the command register value should change from 1001 to 1101 which is a reserved command. Then again suppose it means that the 3-4 byte standard command should have B22 set would for instance change command 0000 to Power down 0100 - again clearly not the explanation.
I don't think the datasheet is adequate in explaining this function.
- Can you explain how _is_ Multi byte operation enabled?
- What can it do?
- How is it used?
