RX 8B/10B Decoder

Versal Adaptive SoC GTY and GTYP Transceivers Architecture Manual (AM002)

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1.3 English

If RX received data is 8B/10B encoded, it must be decoded. The GTY and GTYP transceiver has a built-in 8B/10B encoder in the GTY and GTYP transceiver TX and an 8B/10B decoder in the GTY and GTYP transceiver RX. This includes four one-byte 8B/10B decoder modules on the datapath to decode data without consuming device resources. The RX 8B/10B decoder has these features:

  • Supports 2-byte and 4-byte interconnect logic interface operation
  • Provides daisy-chained hookup of running disparity for proper disparity
  • Generates K characters and status outputs
  • Can be bypassed if incoming data is not 8B/10B encoded
  • Pipes out 10-bit literal encoded values when encountering a not-in-table error