Altera Avalon Verification IP Suite - Manual (Page 115)

• Response Descriptor—Collects information about completed transactions.
Figure 8-3: Block Diagram of the Avalon-ST Source BFM
Transaction Descriptor
Public
Events
Avalon-ST Source BFM API
(Transaction Level Commands)
Avalon-ST Interface
Physical Layer
Response Descriptor
Transaction
Queue
Pending
Response
Queue
Physical
Bus Driver
Physical
Bus Monior
valid
data
channel
startofpacket
endofpacket
error
empty
ready
push_transaction() pop_transaction()
Backpressure (ready)
Backpressure
latency
Signals
Events
Parameters
The Avalon-ST Source BFM supports all the of the signals defined for the Avalon-ST source interface. The
following table lists the parameters to customize the Avalon-ST Source interface.
Table 8-2: Parameters for the Avalon-ST Source BFM
Description Legal
Values
Default
Value
Parameter
Port Enables
When On, the interface includes the
startofpacket
,
endofpacket , and empty signals.
On/Off Off Include the signals to support
packets
When On, the interface includes
channel
pin or pins. On/Off Off Use the channel port
When On, the interface includes
error
pin or pins. On/Off Off Use the error port
When On, the interface includes a ready pin. On/Off On Use the ready port
When On, the interface includes a
valid
pin. On/Off On Use the valid port
When On, the interface includes empty pins. On/Off Off Use the empty port
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8-3 Parameters