Avalon® Interface Specifications

ID 683091
Date 1/24/2022

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7. Avalon® Conduit Interfaces

Avalon® Conduit interfaces group an arbitrary collection of signals. You can specify any role for conduit signals. However, when you connect conduits, the roles and widths must match, and the directions must be opposite. An Avalon® Conduit interface can include input, output, and bidirectional signals. A module can have multiple Avalon® Conduit interfaces to provide a logical signal grouping. Conduit interfaces can declare an associated clock. When connected conduit interfaces are in different clock domains, Platform Designer generates an error message.
Note: If possible, you should use the standard Avalon® -MM or Avalon® -ST interfaces instead of creating an Avalon® Conduit interface. Platform Designer provides validation and adaptation for these interfaces. Platform Designer cannot provide validation or adaptation for Avalon® Conduit interfaces.

Conduit interfaces typically used to drive off-chip device signals, such as an SDRAM address, data and control signals.

Figure 36. Focus on the Conduit Interface