Active path during register read access

Stumbled into a data corruption during a register read.

The adapter’s bus2reg function is called twice during the transaction. This behaviour is correct as the uvm_sequence_items of both the monitor and the driver (REQ) are broadcasted. But the driver should provide the final data for the adapter to translate.


register read()’s active path: => sequencer => register adapter => driver => adapter => sequencer =>

Instead of duplicating the monitor’s logic to decode the protocol, I recommend to use an UVM configuration database to propagate the decoded data from the monitor to the driver.

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