Altera Avalon Verification IP Suite - Manual (Page 47)

3–4 Chapter 3: Avalon-MM Slave BFM
Functional Description
Avalon Verification IP Suite User Guide May 2011 Altera Corporation
Table 3–1 lists the annotations used in Figure 3–2 .
Table 3–1. Key to Annotations in Figure 3–2
Symbol Description
T
wt_1
The response wait time, which is three cycles. The slave sets this value using the
set_interface_wait_time command.
T
wr
waitrequest is sampled #1 after the falling edge of clk .
T
wt_2
The response wait time for the first read, which is two cycles. The slave sets this value using the
set_interface_wait_time command.
S
cr_1
–S
cr_2
Signals when read commands were received. The event name is signal_command_received .
T
rl_1
,T
rl_2
The response latency for the reads, which is three cycles. The slave sets this time using the
set_response_latency command.
T
wrl_1
The write response latency for the first write, which is three cycles. This is the time between when the write
command is accepted, and the write response is provided by the slave. T
S
rc_1
,S
rc_3
Signals write responses. The event name is signal_response_issued.
S
rc_2
,S
rc_4
Signals read responses. The event name is signal_response_issued.
T
ID_1
–T
ID_4
Reference number to identify each read or write transaction.
ID_1, ID_3 Reference number to identify write transactions.
ID_2, ID_4 Reference number to identify read transactions.