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7.3. PHY Merging and Arbiter Connection
There are three aspects to this merging:
- Location Assignments
- XCVR_RECONFIG_GROUP Assignment
- Common connection of the Avalon® Reconfiguration Bus – this is handled by the PHY Arbiter
The PHY Arbiter takes in the Avalon® reconfiguration bus masters from the RX and TX PHYs and arbitrates between their accesses to drive the Avalon® slave of the simplex transceiver instantiations within the RX and TX PHYs with the same signals - refer Fig 10.
There are several basic use cases of the PHYs and PHY Arbiter:
- RX Only
- TX Only
- Single RX and TX simple merge
- Complex Straddled Channels