Article ID: 000080552 Content Type: Product Information & Documentation Last Reviewed: 12/31/2013

How do I transmit START, TERMINATE, and ALIGN code groups from the transceiver when configured in XAUI mode for Stratix, Arria, and Cyclone transceiver devices?

Environment

  • Cyclone® IV GX FPGA
  • Arria® II GX FPGA
  • Stratix® II GX FPGA
  • Stratix® IV GT FPGA
  • Stratix® IV GX FPGA
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Description

To transmit START, TERMINATE, and ALIGN code groups from the transceiver when configured in XAUI mode for Stratix® , Arria® , and Cyclone®  transceiver devices you should present IDLE code groups  to the tx_datain port of the transceiver instance. The XAUI state machine inside the transceiver automatically converts IDLE code groups to ALIGN /A/, /R/, /SKIP/ and Sync /K/ code groups as required by the XAUI specification.

The IDLE code group is defined as 0x0707.

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