Rita, You must write a "0" to 0x05 to clear the alarms before reading them. After I duplicated your setup I get a 0x02 at address 0x05 which is to be expected. If the DAC PLL is locked, bits 7:5 of address 0x6 (PLL_LFVOLT) should read between 3-5. I get a 4 when I did this indicating the PLL is locked. Regards, Jim
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