Altera Arria V Avalon-ST - Manual (Page 203)

Location altpcietb_bfm_driver_rp.v
Arguments
bar_table Address of the Endpoint
bar_table
structure in BFM shared
memory. The
bar_table
structure stores the address assigned
to each BAR so that the driver code does not need to be aware
of the actual assigned addresses only the application specific
offsets from the BAR.
bar_num Number of the BAR used with
pcie_offset
to determine PCI
Express address.
pcie_offset Address offset from the BAR base.
imm_data Data to be written. In Verilog HDL, this argument is
reg
[31:0]
.In both languages, the bits written depend on the
length as follows:
Length Bits Written
• 4: 31 downto 0
• 3: 23 downto 0
• 2: 15 downto 0
• 1: 7 downto 0
byte_len Length of the data to be written in bytes. Maximum length is 4
bytes.
tclass Traffic class to be used for the PCI Express transaction.
ebfm_barrd_wait Procedure
The
ebfm_barrd_wait
procedure reads a block of data from the offset of the specified Endpoint BAR and
stores it in BFM shared memory. The length can be longer than the configured maximum read request
size; the procedure breaks the request up into multiple transactions as needed. This procedure waits until
all of the completion data is returned and places it in shared memory.
Location altpcietb_bfm_driver_rp.v
Syntax
ebfm_barrd_wait(bar_table, bar_num, pcie_offset, lcladdr, byte_len, tclass)
2014.12.15
ebfm_barrd_wait Procedure 16-33
Testbench and Design Example Altera Corporation
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