SLUSDQ4 April 2019 BQ79606A-Q1
The register COMM_TO[LONG] sets the time period before the BQ79606A-Q1 shuts down due to lack of a valid communication frame from either the UART interface or the daisy-chain interface. Similar to the short communication fault, the timer is reset every time a valid response or command frame is received. If enabled, when the timer expires, the BQ79606A-Q1 enters SHUTDOWN mode. A wake up can recover the device from SHUTDOWN.
To avoid getting a power-down communications fault before a communications timeout fault, ensure the COMM_TO[SHORT] time is shorter than the COMM_TO[LONG] time.