Altera Avalon Verification IP Suite - Manual (Page 52)

Table 6-1: Key to Annotations
The following table lists the annotations used in this figure.
Description Symbol
The response wait time, which is three cycles. The slave sets this value using the set_interface_
wait_time
command.
T
wt_1
waitrequest is sampled #1 after the falling edge of clk . T
wr
The response wait time for the first read, which is 2 cycles. The slave sets this value using the
set_interface_wait_time
command.
T
wt_2
Signals when read commands were received. The event name is
signal_command_received
. S
cr_1
–S
cr_2
The response latency for the reads, which is 3 cycles. The slave sets this time using the
set_
response_latency command.
T
rl_1
,T
rl_2
The write response latency for the first write, which is 3 cycles. This is the time between when
the write command is accepted, and the write response is provided by the slave. T T
wrl_1
Signals write responses. The event name is signal_response_issued. S
rc_1
,S
rc_3
Signals read responses. The event name is
signal_response_issued.
S
rc_2
,S
rc_4
Reference number to identify each read or write transaction. T
ID_1
–T
ID_
4
Reference number to identify write transactions. ID_1, ID_3
Reference number to identify read transactions. ID_2, ID_4
Avalon-MM Slave BFM Altera Corporation
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Timing 6-4