SLUSDQ4 April 2019 BQ79606A-Q1
The BQ79606A-Q1 continuously monitors the battery voltage, battery temperature, die temperature, communications, and internal functions for faults and errors. When one of the monitored faults or errors occurs, the BQ79606A-Q1 alerts the host ( with NFAULT for base devices or FAULT tones for stack devices) to allow the host to handle the condition as is necessary. For every fault, there are 3 register bits. The status bit shows the fault is active, the reset bit is used to clear the fault, and the mask bit. Masking a fault prevents the external signaling (NFAULT for base devices or FAULT tones for stack devices). Any time an unmasked fault condition is triggered, the device signals the fault on the NFAULT output (base device) or sends a FAULT tone (stack device) down the stack. Faults are actively monitored in ACTIVE and SLEEP modes when enabled. Faults are NEVER monitored during SHUTDOWN Mode.