I have a question AD7091R-8.
This is how to set the channel register.Which of the following two is correct? Or are they different?① First set the Address (including R / W). The lower 10 bits are set to '0' → Next Channel Register is set. For example, 'FF' when all channels are usedThat is, two accesses are requiredOr② Address containing R / W in the upper 6 bits, lower 8 bits as FF.In other words, it is OK with one access
The writing of an address should be done all in one transaction, so your option #2. The command for enabling all channels of the AD7091R-8 is 0x0CFF. Please see Table 25 of the data sheet for further detail.
Address = 0x1
Write Bit = 1