SBOU024C august 2004 – july 2023 PGA309
A timeout mechanism is implemented to allow for resynchronization of the One-Wire interface, or if synchronization between the controller and the PGA309 is lost for any reason. The timeout period is set to approximately 25ms to 35ms. If the timeout period expires between the initialization byte and the command byte, between the command byte and any data byte, or between any data bytes, the PGA309 will reset the One-Wire interface circuitry to expect an initialization byte. Every time a byte is transmitted on the One-Wire interface, this timeout period is restarted.