This is the mode of operation if both timer1 and timer2 are configured with non-zero values. Both timers begin counting when a CRC24 error is detected and a request for retransmission is signaled.
In this mode, timer1 ignores "any possible short term secondary errors,” including CRC24 errors, and also valid sequence discontinuities. If timer2 expires before a valid sequence discontinuity is detected, a re-request for retransmission immediately occurs. If a CRC24 error is detected after timer1 has expired but timer2 has not expired, another request for retransmission immediately occurs.
CTL_RX_RETRANS_TIMER1 should be set to a value much less than the
minimum request-to-discontinuity latency. However, if it is too low, it will not serve
its intended purpose.
CTL_RX_RETRANS_TIMER2 should be set to a value greater than the maximum
request-to-discontinuity latency.