Altera Avalon Verification IP Suite - Manual (Page 54)

Description Symbol
Signals the end of the test. The event name is
signal_all_transactions_complete
S
atc
Block Diagram
The following figure provides a block diagram of the Avalon-MM Slave BFM. The BFM includes the following
major blocks:
• Avalon-MM Slave API—Provides methods to get commands and create responses to commands from
the Avalon-MM master (DUT).
• Command Descriptor—Accumulates the fields of a command sent by the Avalon-MM master. Sends
completed commands to the Avalon-MM Slave BFM when requested.
• Avalon-MM Interface Monitor—Monitors activity coming from the Avalon-MM Master (DUT). Stores
commands in the Client Command Queue.
• Response Generator and Data Cache— In
memory_mode
the Slave BFM models a single port RAM. A
write operation stores the data in an associative array and generates no response. A read operation fetches
data from the array and drives it on the response side of the Avalon interface. This mode simplifies
loopback testing.
• Avalon-MM Slave Interface Driver—Drives responses to the system interconnect fabric. For burst
transfers, there is a separate transfer for each word of the burst. The client testbench can instruct the
Slave BFM to assert
waitrequest
for each word of the burst to test the functionality of the Avalon-MM
master.
Avalon-MM Slave BFM Altera Corporation
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Block Diagram 6-6