Altera Mentor Verification IP Altera Edition AMBA AXI3/4T Manuel d'utilisateur Page 253

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VHDL AXI3 and AXI4 Master BFMs
get_lock()
Mentor VIP AE AXI3/4 User Guide, V10.2b
235
September 2013
get_lock()
This nonblocking procedure gets the lock field for a transaction that is uniquely identified by the
transaction_id field previously created by either the create_write_transaction() or
create_read_transaction() procedure.
AXI3 Example
-- Create a read transaction with start address of 1.
-- Creation returns tr_id to identify the transaction.
create_read_transaction(1, tr_id, bfm_index, axi_tr_if_0(bfm_index));
....
-- Get the lock field of the tr_id transaction.
get_lock(lock, tr_id, bfm_index, axi_tr_if_0(bfm_index));
Prototype
-- * = axi| axi4
-- ** = AXI | AXI4
get_lock
(
lock : out integer;
transaction_id : in integer;
bfm_id : in integer;
path_id : in *_path_t; --optional
signal tr_if : inout *_vhd_if_struct_t
);
Arguments
lock Burst lock:
**_NORMAL;
**_EXCLUSIVE;
(AXI3) AXI_LOCKED;
(AXI3) AXI_LOCK_RSVD;
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
lock
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