Altera Mentor Verification IP Altera Edition AMBA AXI4-Stream - Manual (Page 38)

Mentor Verification IP AE AMBA AXI4-Stream User Guide, V10.3 38
SystemVerilog Master BFM
create_master_transaction()
April 2014
create_master_transaction()
This nonblocking function creates a master transaction with an optional burst_length argument.
All other transaction fields default to legal protocol values, unless previously assigned a value.
It returns with the axi4stream_transaction record.
Example
// Create a master transaction with a data burst length of 3.
trans = bfm.create_write_transaction(3);
trans.set_data[0] = 'hACE0ACE1;
trans.set_data[1] = 'hACE2ACE3;
trans.set_data[2] = 'hACE4ACE5;
Prototype function automatic axi4stream_transaction
create_master_transaction
(
input int burst_length = 1 // optional
);
Arguments burst_length (Optional) Number of transfers within a packet. Default: 1.
Protocol
Transaction
Fields data Data array in bytes.
byte_type Byte type array:
AXI4STREAM_DATA_BYTE; (default)
AXI4STREAM_NULL_BYTE;
AXI4STREAM_POS_BYTE;
AXI4STREAM_ILLEGAL_BYTE;
id Data stream identifier.
dest Destination routing information.
user_data User data array.
Operational
Transaction
Fields operation_
mode Operation mode:
AXI4STREAM_TRANSACTION_NON_BLOCKING;
AXI4STREAM_TRANSACTION_BLOCKING; (default)
valid_delay TVALID delay measured in ACLK cycles for this transaction.
(default = 0).
ready_delay TREADY delay measured in ACLK cycles for this transaction.
(default = 0).
transfer_done Transfer done flag array for this transaction
transaction_
done Transaction done flag for this transaction
Returns
trans The axi4stream_transaction record.