Create_read_transaction() – Altera Mentor Verification IP Altera Edition AMBA AXI4-Lite User Manual

Page 161

Advertising
background image

VHDL Master BFM

create_read_transaction()

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

161

April 2014

create_read_transaction()

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

Prototype

procedure create_read_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.

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.

resp

Response:

AXI4_OKAY;
AXI4_SLVERR;
AXI4_DECERR;

Operational
Transaction
Fields

operation_
mode

Operation mode:

AXI4_TRANSACTION_NON_BLOCKING;
AXI4_TRANSACTION_BLOCKING; (default)

Advertising