JAJSES9 February 2018 DAC8771
PRODUCTION DATA.
Since, DAC8771 contains one ALARM pin for the entire chip, the status of individual fault condition can be checked using the status register. This register (see ) consists of five types of ALARM status bits (Faults on current and voltage outputs , Over temperature condition, CRC errors, Watchdog timeout and Buck-Boost converter power good) and two status bit (User toggle, Auto Learn status). The device continuously monitors these conditions. When an alarm occurs, the ALARM pin is pulled low and the corresponding status bit is set ('1'). Whenever one of these status bits is set, it remains set until the user clears it by writing '1' to corresponding bit on address 0x0B. The status bit can also be cleared by performing a hardware reset, software reset, or power-on reset, note that it takes a minimum of 8 µsec for the status register to get reset. These bits are reasserted if the ALARM condition continues to exist in the next monitoring cycle.