
VHDL AXI3 and AXI4 Monitor BFMs
get_burst_length()
Mentor VIP AE AXI3/4 User Guide, V10.2b
523
September 2013
get_burst_length()
This nonblocking procedure gets the burst_length field for a transaction that is uniquely
identified by the transaction_id field previously created by the create_monitor_transaction()
procedure.
The burst_length field is the value that appears on the AWLEN and the ARLEN protocol
signals. The number of data phases (beats) in a data burst is therefore burst_length + 1.
AXI3 Example
-- Create a monitor transaction. Creation returns tr_id to identify
-- the transaction.
create_monitor_transaction(tr_id, bfm_index, axi_tr_if_0(bfm_index));
....
-- Get the burst length field of the tr_id transaction.
get_burst_length(burst_length, tr_id, bfm_index, axi_tr_if_0(bfm_index));
Prototype
-- * = axi| axi4
-- ** = AXI | AXI4
get_burst_length
(
burst_length : out std_logic_vector(**_MAX_BIT_SIZE-1 downto
0) | integer;
transaction_id : in integer;
bfm_id : in integer;
path_id : in *_path_t; --optional
signal tr_if : inout *_vhd_if_struct_t
);
Arguments burst_length Burst length.
transaction_id Transaction identifier. Refer to “Overloaded Procedure Common
Arguments” on page 203 for more details.
bfm_id BFM identifier. Refer to “Overloaded Procedure Common Arguments”
on page 203 for more details.
path_id (Optional) Parallel process path identifier:
**_PATH_0
**_PATH_1
**_PATH_2
**_PATH_3
**_PATH_4
Refer to “Overloaded Procedure Common Arguments” on page 203 for
more details.
tr_if Transaction signal interface. Refer to “Overloaded Procedure Common
Arguments” on page 203 for more details.
Returns
burst_length
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