Altera Mentor Verification IP Altera Edition AMBA AXI4-Li Instrukcja Użytkownika Strona 310

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Mentor Verification IP AE AXI4-Lite User Guide, V10.3
310
VHDL Monitor BFM
get_data_valid_delay()
April 2014
get_data_valid_delay()
This nonblocking procedure sets the data_valid_delay field for a transaction that is uniquely
identified by the transaction_id field previously created by the create_monitor_transaction()
procedure.
Example
-- Create a monitor transaction with start address of 0.
-- Creation returns tr_id to identify the transaction.
create_monitor_transaction(tr_id, bfm_index, axi4_tr_if_0(bfm_index));
....
-- Get the write channel WVALID delay for the data
-- phase (beat) of the tr_id transaction.
get_data_valid_delay(data_valid_delay, tr_id, bfm_index,
axi4_tr_if_0(bfm_index));
Prototype
get_data_valid_delay
(
data_valid_delay: out integer;
transaction_id : in integer;
bfm_id : in integer;
path_id : in axi4_path_t; --optional
signal tr_if : inout axi4_vhd_if_struct_t
);
Arguments
data_valid_delay Data channel array to hold RVALID/WVALID delays measured
in ACLK cycles for this transaction.
transaction_id Transaction identifier. Refer to “Overloaded Procedure
Common Arguments” on page 151 for more details.
bfm_id BFM identifier. Refer to “Overloaded Procedure Common
Arguments” on page 151 for more details.
path_id (Optional) Parallel process path identifier:
AXI4_PATH_0
AXI4_PATH_1
AXI4_PATH_2
AXI4_PATH_3
AXI4_PATH_4
Refer to “Overloaded Procedure Common Arguments” on
page 151 for more details.
tr_if Transaction signal interface. Refer to “Overloaded Procedure
Common Arguments” on page 151 for more details.
Returns
data_valid_delay
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