Intel® Quartus® Prime Pro Edition User Guide: Platform Designer

ID 683609
Date 10/04/2021
Public

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5.15.11. Avalon® Streaming Credit User Signals

User signals are optional sideband signals which flow along with data. They are considered valid only when data is valid. Given that user signals do not have any defined meaning or purpose, caution must be used while using these signals. It is the responsibility of the system designer to make sure that two IPs connected to each other agree on the roles of the user signals.

Two types of user signals are being proposed: per-symbol user signals and per-packet user signals.