DAC7563: Regarding to the Commands

Hi Masa-san, 

Each channel has an input (buffer) register and an output register. Any command that says update all DAC registers will move the data from the input register to the output register for all channels. For the specific command you have highlighted, the input register for channel A will be updated with the new data and the output register will also be updated with this new data at the same time. Whatever data was in the input register for channel B will be updated to the output register for channel B during this command as well. 

This is useful if the customer wants both outputs of the DAC to update at the same time. To do this they can write to the input register of channel B, and then write to the input register of channel A/update all DACs to have both channels update with the new data at the same time. 

Best,

Katlynne 

Hello Katlynne-san,

Thanks to the explanation!

Regards,

Masakazu