Processor Local Bus Functional Model Toolkit User's Manual

• fixed_burst_count_min/fixed_burst_count_max = [integer] default:2/255
These parameters specify the range for the fixed burst transfers when master_auto_mode is true,
burst_probability is greater than zero or size_min/max include burst transfers, and
fixed_burst_probability is greater than zero. For example, a user could specify the following:
configure(msize=01, single_probability=20, line_probability=20, burst_probability=60,
fixed_burst_probability=5, fixed_burst_count_min=2, fixed_burst_count_max=8)
This configure would randomly generate fixed bursts of two to eight doublewords. Note: the bursts
would be doublewords b/c the msize specifies a 64-bit master.
• fixed_burst_abort_probability = [integer] default:4
This parameter species the probability of early terminated(also called aborted) fixed burst transfers
when master_auto_mode is true, burst_probability is greater than zero or size_min/max includes
burst transfers, and fixed_burst_probability is greater than zero. For example, a user could specify
the following:
configure(msize=01,single_probability=20,line_probability=20,burst_probability=60,fixed_burst_pr
obability=5,fixed_burst_count_min=2,fixed_burst_count_max=8,fixed_burst_abort_probability=3)
This configure would randomly generate fixed bursts of two to eight doublewords with one out of
every three fixed bursts terminating early. Note: the bursts would be doublewords b/c the msize
specifies a 64-bit master.
• * req_delay_min/max = [integer] default:0/20
These parameters specify the range for req_delay when master_auto_mode is true. The model
automatically assigns a random value to the req_delay between (and including) the minimum and
maximum values.
• * abort_probability = [integer] default:5
This parameter specifies the probability that M_abort will be asserted when master_auto_mode is
true. For example, the probability that M_abort will be asserted is approximately 1 out of every 5
(default value) master requests when master_auto_mode is enabled.
• * abort_delay_min/max = [integer] default:0/17
These parameters specify the range for abort_delay when master_auto_mode is true. The model
automatically assigns a random value to the abort_delay between (and including) the minimum and
maximum values. This parameter is generated for approximately 1 out of every abort_probability
cycles when master_auto_mode is enabled.
• * lock_probability = [integer] default:5
This parameter specifies the probability that M_busLock will be asserted when master_auto_mode
is true. For example, the probability that M_busLock will be asserted is approximately 1 out of
every 5 (default value) master requests when master_auto_mode is enabled.
• * unlock_delay_min/max = [integer] default:1/50
These parameters specify the range for unlock_delay when master_auto_mode is true. The model
automatically assigns a random value to the unlock_delay between (and including) the minimum
and maximum values when the lock_delay parameter is selected. This parameter is generated for
approximately 1 out of every five cycles when master_auto_mode is enabled.
• * priority_min/max = [integer:0,1,2,3] default:0/3
Version 4.9.2 PLB Bus Functional Language 33