Altera Mentor Verification IP Altera Edition AMBA AXI3/4TM - Manual (Page 331)

VHDL AXI3 and AXI4 Master BFMs
execute_transaction()
Mentor VIP AE AXI3/4 User Guide, V10.2b 313
September 2013
execute_transaction()
This procedure executes a master transaction that is uniquely identified by the transaction_id
argument, previously created with either the
create_write_transaction() or
create_read_transaction() procedure. A transaction can be blocking (default) or nonblocking,
based on the setting of the transaction operation_mode field.
The results of execute_transaction() for write transactions varies based on how write transaction
fields are set. If the transaction gen_write_strobes field is set, execute_transaction ()
automatically corrects any previously set write_strobes field array elements. However, if the
gen_write_strobes field is not set, then any previously assigned write_strobes field array
elements will be passed onto the WSTRB protocol signals, which can result in a protocol
violation if not correctly set. Refer to
“Automatic Correction of Byte Lane Strobes” on page 197
for more details.If the write_data_mode field for a write transaction is set to
*_DATA_WITH_ADDRESS
, execute_transaction() calls the execute_write_addr_phase() and
execute_write_data_burst() procedures simultaneously; otherwise execute_write_data_burst()
will be called after execute_write_addr_phase() so that the write data burst occurs after the
write address phase (default). It will then call the get_write_response_phase() procedure to
complete the write transaction.
For a read transaction, execute_transaction () calls the execute_read_addr_phase() procedure
followed by the get_read_data_burst() procedure to complete the read transaction.
Prototype -- * = axi| axi4
-- ** = AXI | AXI4
procedure execute_transaction
(
transaction_id : in integer;
bfm_id : in integer;
path_id : in *_path_t; --optional
signal tr_if : inout *_vhd_if_struct_t
);
Arguments 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 None