Howdy Chen Longchang,
Regarding the DAC output 2V voltage.
- Is this voltage generated by another IC connected to the DAC output? Is it a weak pull-up, high impedance?
- My main concern is that the 2V will source or sink current from the DAC output.
- The Address bit selection is described in the datasheet, page 49 to be exact. The chart is provided below for reference.
- The master sends the 7-bit AMC7812 slave address followed by either a '1' or '0' (direction bit). Read operations are set to '1', while write operations set the bit to '0'. This information is located on pg 53 of the DS.
- Please note that for the following A0/A1/A2 to 001, a write would be '0x58' and a read '0x59'
- When A0/A1/A2 is 100, a write would be '0xC4', and a read '0xC5'
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Best Regards,
Matt
