22.214.171.124.1. Byte Deserializer Disabled Mode
In disabled mode, the byte deserializer is bypassed. The data from the 8B/10B decoder, rate match FIFO, or word aligner is directly transmitted to the RX FIFO, depending on whether or not the 8B/10B decoder and rate match FIFO are enabled. Disabled mode is used in low speed applications such as GigE, where the FPGA fabric and the PCS can operate at the same clock rate.
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