ZHCSOU1 February 2023 DS90UB638-Q1
PRODUCTION DATA
The DS90UB638-Q1 receiver will by default adapt based on FPD-Link error checking during the Adaptive Equalization process. The specific errors linked to equalizer adaption, FPD-Link III clock recovery error, packet encoding error, and parity error can be individually selected in AEQ_CTL1 register 0x42 (see GUID-5EEE5038-F233-450D-9B22-67629B2B1945.html#GUID-5EEE5038-F233-450D-9B22-67629B2B1945). Errors are accumulated over 1/2 of the period of the timer set by the ADAPTIVE_EQ_RELOCK_TIME. If the number of errors is greater than the programmed threshold (AEQ_ERR_THOLD), the AEQ will attempt to increase the EQ setting.