Create_monitor_transaction(), Example, Function – Altera Mentor Verification IP Altera Edition AMBA AXI4-Lite User Manual

Page 98: For the monitor bfm api

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

98

SystemVerilog Monitor BFM
create_monitor_transaction()

April 2014

create_monitor_transaction()

This nonblocking function creates a monitor transaction. All transaction fields default to legal
protocol values, unless previously assigned a value. It returns with the axi4_transaction record.

Example

// Create a monitor transaction
trans = bfm.create_monitor_transaction();

Prototype

function automatic axi4_transaction create_monitor_transaction();

Protocol
Transaction
Fields

addr

Start address

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 array.

write_strobes

Write strobes:

Each strobe 0 or 1.

resp

Burst response:

AXI4_OKAY;
AXI4_SLVERR;
AXI4_DECERR;

Operational
Transaction
Fields

gen_write_
strobes

Generate write strobes flag:

0 = user supplied write strobes.
1 = auto-generated write strobes (default).

operation_
mode

Operation mode:

AXI4_TRANSACTION_NON_BLOCKING;
AXI4_TRANSACTION_BLOCKING; (default)

write_data_
mode

Write data mode:

AXI4_DATA_AFTER_ADDRESS; (default)
AXI4_DATA_WITH_ADDRESS;

Operational
Transaction
Fields

address_valid_
delay

Address channel AWVALID delay measured in ACLK cycles for this
transaction (default = 0).

data_valid_
delay

Write data channel WVALID delay array measured in ACLK cycles for
this transaction (default = 0 for all elements).

write_response
_ready_delay

Write response channel BREADY delay measured in ACLK cycles for
this transaction (default = 0).

transaction_
done

Write transaction done flag for this transaction.

Returns

The axi4_transaction record

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