Altera Mentor Verification IP Altera Edition AMBA AXI4-Stream - Manual (Page 80)

Mentor Verification IP AE AMBA AXI4-Stream User Guide, V10.3 80
VHDL API Overview
Creating Transactions
April 2014
The VHDL Master BFM API allows you to create a master transaction by providing only an
optional burst_length argument to indicate the number of transfers within a packet. All other
protocol transaction fields automatically default to legal protocol values to create a master
transaction record. Refer to
create_master_transaction() for default protocol transaction field
values.
The VHDL Slave BFM API allows you to create a slave transaction with no arguments. All
protocol transaction fields automatically default to legal protocol values to create a slave
transaction record. Refer to
create_slave_transaction() for default protocol transaction field
values.
The VHDL Monitor BFM API allows you to create a monitor transaction with no arguments.
All protocol transaction fields automatically default to legal protocol values to create a complete
monitor transaction record. Refer to
create_monitor_transaction() for default protocol
transaction field values.
Note
If you change the default value of a protocol transaction field, it is valid for all future
transactions until you set a new value.
create*_transaction()
There create_master_transaction() , create_slave_transaction() and
create_monitor_transaction() BFM API procedures create master, slave, and monitor
transactions, respectively.
operation_mode A enumeration to hold the operation mode of the
transaction. There are two types of operation mode:
AXI4STREAM_TRANSACTION_NON_BLOCKING
AXI4STREAM_TRANSACTION_BLOCKING
The field content is not transferred over the AXI4-Stream
protocol signals.
transfer_done An unsized bit array to hold the done flag for each
transfer within a packet. The field content is not
transferred over the protocol signals during a transaction.
transaction_done A bit to hold the done flag for a complete transaction. The
field content is not transferred over the protocol signals
during a transaction.
Table 7-1. Transaction Record Fields (cont.)
Transaction Field Description