Altera Mentor Verification IP Altera Edition AMBA AXI4-St Manuale Utente Scaricare il pdf (Pagina 171)

VHDL Monitor BFM

get_valid_delay()

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

171

April 2014

get_valid_delay()

This nonblocking procedure gets the valid_delay field for a monitor transaction that is uniquely

identified by the transaction_id field previously created by the create_monitor_transaction()

procedure.

The valid_delay array element is identified by the optional index argument. If no index is

supplied, then the first valid_delay is accessed in the array.

Example

-- Create a monitor transaction.

-- Creation returns tr_id to identify the transaction.

create_monitor_transaction(tr_id, bfm_index,

axi4stream_tr_if_0(bfm_index));

-- Get the TVALID delay for the first transfer of the tr_id transaction.

get_valid_delay(valid_delay, 0, tr_id, bfm_index,

axi4stream_tr_if_0(bfm_index));

-- Get the TVALID delay or the second transfer of the tr_id transaction.

get_valid_delay(valid_delay, 1, tr_id, bfm_index,

axi4stream_tr_if_0(bfm_index));

Prototype

get_valid_delay

(

valid_delay: out integer;

index : in integer; --optional

transaction_id : in integer;

bfm_id : in integer;

signal tr_if : inout axi4stream_vhd_if_struct_t

);

Arguments

valid_delay Valid delay array to store TVALID delays measured in ACLK

cycles for this transaction. Default: 0.

index (Optional) Array element index number for valid_delay.

transaction_id Transaction identifier. Refer to “Overloaded Procedure

Common Arguments” on page 87 for more details.

bfm_id BFM identifier. Refer to “Overloaded Procedure Common

Arguments” on page 87 for more details.

tr_if Transaction signal interface. Refer to “Overloaded Procedure

Common Arguments” on page 87 for more details.

Returns

valid_delay

1 2 ... 166 167 168 169 170 171 172 173 174 175 176 ... 230 231

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