Altera Avalon Verification IP Suite - Manual (Page 63)

4–2 Chapter 4: Avalon-MM Slave BFM with Avalon-ST API Wrapper
Avalon Verification IP Suite User Guide May 2011 Altera Corporation
In Figure 4–1 , the API call interface and Avalon-ST call and return interface operate in
separate clock domains with av_clk synchronizing the FPGA logic and api_clk
synchronizing the Avalon-ST translation interface. The Avalon-ST interface, which is
not part of the actual hardware design, operates at a much faster frequency than the
Avalon-MM Slave BFM interface, enabling 1000 API calls and returns to be issued to
the BFM per Avalon clock cycle.
For every function call in the BFM, there is a channel identifier that stores the fixed
mapping between channel number and the function.
<$install_dir>/ip/altera/sopc_builder_ip/verification/lib/
altera_avalon_components_pkg.vhd
defines the following function calls:
■ MM_SLV_SIGNAL_FATAL_ERROR
■ MM_SLV_SIGNAL_ERROR_EXCEED_MAX_PENDING_READS
■ MM_SLV_SIGNAL_COMMAND_RECEIVED
■ MM_SLV_SIGNAL_RESP_ISSUED
■ MM_SLV_SIGNAL_RESERVED_4
■ MM_SLV_SIGNAL_RESERVED_5
■ MM_SLV_SIGNAL_RESERVED_6
■ MM_SLV_SIGNAL_RESERVED_7
With the exception of the API wrapper, the Avalon-MM Slave BFM with Avalon-ST
API Wrapper component is identical to the Avalon-MM Slave BFM. For more
information about this component, refer to
Chapter 3, Avalon-MM Slave BFM .