Altera RapidIO MegaCore Function - Manual (Page 164)

7–2 Chapter 7: Testbenches
RapidIO MegaCore Function August 2014 Altera Corporation
User Guide
1 Your specific variation may not have all of the interfaces enabled. If an interface is not
enabled, the transactions supported by that interface are not exercised by the
testbench.
In addition, the RapidIO IP core modules implement the following features:
■ Multicast-event control symbol transmission and reception. The RapidIO IP core
under test generates and transmits multicast-event control symbols in response to
transitions on its multicast_event_tx input signal. The sister module checks that
these control symbols arrive as expected.
■ Disabled destination ID checking, or not, selected at configuration.
■ NWRITE_R completion indication.
■ Transaction order preservation between DOORBELL transactions and I/O write
transactions, or not, selected at configuration. If this feature is selected, the
RapidIO IP core under test generates and transmits DOORBELL and write
transactions. The testbench checks that the transaction packets arrive on the link in
the expected order.
Figure 7–1 illustrates the system specified in Verilog HDL in the testbench
connections file (_hookup.iv in non-Arria 10 variations, and in the
main testbench file <design_name>_altera_rapidio_140.tb_rio in Arria 10 variations).
Activity across the Avalon-MM interfaces is generated and checked by running tasks
that are defined in the bus functional models (BFMs). In non-Arria 10 variations,
These models are implemented in the following files:
Figure 7–1. RapidIO IP Core Testbench
PHY PHY
Avalon-MM
sister_rio
Serial
RapidIO
Interface
Avalon-MM
Avalon-ST
DUT
Avalon-ST
Maintenance
Slave
sister_bfm_mnt_slave
sister_bfm_mnt_master
Maintenance
Master
Maintenance
Slave
Maintenance
Master
bfm_mnt_slave
bfm_mnt_master
sister_receive_packet_avalon_st
sister_send_packet_avalon_st
bfm_receive_packet_avalon_st
bfm_send_packet_avalon_st
I/O
Master
I/O
Slave
bfm_io_read_master
bfm_io_write_master
bfm_io_write_slave
bfm_io_read_slave
sister_bfm_io_read_master
sister_bfm_io_write_master
sister_bfm_io_write_slave
sister_bfm_io_read_slave
I/O
Master
I/O
Slave
sister_bfm_drbell_master
sister_bfm_cnt_master
System
Maintenance
Slave
Doorbell
Slave
System
Maintenance
Slave
Doorbell
Slave
bfm_drbell_master
bfm_cnt_master
Pass-
Through
Pass-
Through