Altera Mentor Verification IP Altera Edition AMBA AXI3/4TM - Manual (Page 651)

VHDL Tutorials
Verifying a Master DUT
Mentor VIP AE AXI3/4 User Guide, V10.2b 631
September 2013
Figure 11-3. Slave Test Program Advanced API Tasks
The process write code extract demonstrates how to create and process multiple write
transactions. Each write transaction has a unique transaction_id number associated with it that
increments for each new transaction. A write_trans variable is defined to hold this
transaction_id.
The processing of write transactions initially configures the maximum number of outstanding
write transactions that can exist. An ACLK period after the ARESETn signal is inactive starts a
loop to create a slave transaction for the BFM indexed by the index argument. In the loop, the
delay for the AWREADY signal is set by the set_write_address_ready_delay procedure and then
it waits for a write address phase to occur using the get_write_addr_phase procedure. The
transaction record is then pushed onto a transaction queue with its unique write_trans
transaction index and queue identifier AXI_QUEUE_ID_0 by the push_transaction_id
procedure.
The loop then completes and starts again by creating a new transaction and waiting for another
write address phase to occur (refer to
Example 11-25 ).