Create_write_transaction(), Tasks, which creates a transaction – Altera Mentor Verification IP Altera Edition AMBA AXI4-Lite User Manual

Page 159

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VHDL Master BFM

create_write_transaction()

Mentor Verification IP AE AXI4-Lite User Guide, V10.3

159

April 2014

create_write_transaction()

This nonblocking procedure creates a write transaction with a start address addr argument. All
other transaction fields default to legal protocol values, unless previously assigned a value. It
returns with the transaction_id argument.

Prototype

procedure create_write_transaction
(

addr : in std_logic_vector(AXI4_MAX_BIT_SIZE-1
downto 0)|integer;
transaction_id : out integer;
bfm_id : in integer;
path_id : in axi4_path_t; --optional
signal tr_if : inout axi4_vhd_if_struct_t

);

Arguments

addr

Start address

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.

Protocol
Transaction

Fields

prot

Protection:

AXI4_NORM_SEC_DATA; (default)
AXI4_PRIV_SEC_DATA;
AXI4_NORM_NONSEC_DATA;
AXI4_PRIV_NONSEC_DATA;
AXI4_NORM_SEC_INST;
AXI4_PRIV_SEC_INST;
AXI4_NORM_NONSEC_INST;
AXI4_PRIV_NONSEC_INST;

data_words

Data words.

write_strobes

Write strobes:

Each strobe 0 or 1.

resp

Response:

AXI4_OKAY;
AXI4_SLVERR;
AXI4_DECERR;

Operational
Transaction
Fields

gen_write_strobes

Correction of write strobes for invalid byte lanes:

0 = write_strobes passed through to protocol signals.
1 = write_strobes auto-corrected for invalid byte lanes
(default).

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