For AD719x family: Is the serial interface reset when /CS is taken high?
No. /CS - Chip Select does not reset the serial interface. To reset the serial interface, 40 ones must be written to the ADC. This will reset the on-chip registers to their default values also.
This architecture was used as it allows the user to read or write to the AD719x in ‘batches’. For example, when reading the configuration register, the contents can be read as a continuous 24-bit word or the data can be split into three 8-bit bytes. When writing to the configuration register, the information can be sent as a continuous 24-bit word or, alternatively, the data can be sent as three 8-bit bytes. /CS can he held low when the information is being transferred. Alternatively, /CS can be used to frame each of the 8-bit bytes without affecting the data transfer process.
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