RapidIO Intel FPGA IP User Guide

ID 683884
Date 9/15/2021
Public
Document Table of Contents

4.3.3.1. Receiver Transceiver

The receiver transceiver is an embedded megafunction in the Arria II GX, Arria II GZ, Cyclone IV GX, or Stratix IV GX device, or an embedded Custom PHY IP core in the Arria® V, Cyclone® V, or Stratix® V device, or an embedded Intel® Arria® 10 or Intel® Cyclone® 10 GX Native PHY IP core in the Intel® Arria® 10 or Intel® Cyclone® 10 GX devices. The receiver transceiver implements the following process:
  1. Feeds serial data from differential input pins to the CRU to detect clock and data.
  2. Deserializes recovered data into 10-bit code groups.
  3. Sends the code groups to the pattern detector and word-aligner block to detect word boundaries.
  4. Performs 8B10B decoding on properly aligned 10-bit code groups to convert them to 8-bit characters.
  5. Converts 8-bit characters to 16-bit or 32-bit data in the 8-to-16 or 8-to-32 demultiplexer.