• The UHD-SDI RX core hunts for TRS symbols and asserts rx_mode_locked if the UHD-SDI core detects error-free TRS symbols (that is, a valid XYZ word and with no CRC errors on the received line) for continuous three video lines.
• Look for pulses on the rx_eav , rx_sav signals at the correct places on each line along with rx_trs signal.
• Make sure no CRC errors are reported on rx_crc_err_ds1 to ds16.
• Make sure supported modes are enabled in the rx_mode_enable [5:0] signal.
• Verify that rx_mode [2:0] reported by the SDI core matches the incoming SDI mode.
• SDI Mode detection searches the mode in the following fashion if all of the modes are set in r x_mode_enable : HD -> 3G -> 6G -> 12GA -> 12GB -> SD -> HD.
• Make sure that rx_frame_en signal is asserted High during core operation.