1.6.2 Pattern Generator and Checker
(Ask a Question)The pattern generator transmits K28.5 character and waits for the symbol alignment to occur with the help of CDR bit-slip feature. When symbol alignment occurs on the receiver side, valid_signal gets asserted from Bit_slip_shift_0 module. Transmitter starts generating 40-bit incremental counter pattern when valid_signal is asserted. The pattern checker checks the received data and compares it with the expected counter pattern. An error flag is raised if data mismatch occurs. Error flags can be monitored using GUI application running in the host PC.