SNLS500A July 2016 – January 2024 DS90UB964-Q1
PRODUCTION DATA
The FPD-Link III receiver checks the decoded data parity to detect any errors in the received FPD-Link III frame. Parity errors are counted up and accessible through the RX_PAR_ERR_HI and RX_PAR_ERR_LO registers 0x55 and 0x56 to provide combined 16-bit error counter. In addition, a parity error flag can be set once a programmed number of parity errors have been detected. This condition is indicated by the PARITY_ERROR flag in the RX_PORT_STS1 register. Reading the counter value clears the counter value and PARITY_ERROR flag. An interrupt can also be generated based on assertion of the parity error flag. By default, the parity error counter is cleared and flag is cleared on loss of Receiver lock. To get an exact read of the parity error counter, parity checking must be disabled in the GENERAL_CFG register 0x02 before reading the counter.