Get_burst_length(), Axi3 example – Altera Mentor Verification IP Altera Edition AMBA AXI3/4TM User Manual

Page 543

Advertising

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.

Note

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