
SystemVerilog Master BFM
Master BFM Configuration
Mentor Verification IP AE AXI4-Lite User Guide, V10.3
41
April 2014
A master BFM has configuration fields that you can set with the set_config() function to
configure timeout factors, and setup and hold times, and so on. You can also get the value of a
configuration field using the get_config() function. Table 3-2 describes the full list of
configuration fields.
WRITE_ISSUING_
CAPABILITY
The maximum number of outstanding write transactions that
can be issued from the master BFM. This parameter is set
with the Qsys Parameter Editor. See “Running the Qsys
Tool” on page 356. for details.
Default: 16.
COMBINED_ISSUING_
CAPABILITY
The maximum number of outstanding combined read and
write transactions that can be issued from the master BFM.
This parameter is set with the Qsys Parameter Editor. See
“Running the Qsys Tool” on page 356. for details.
Default: 16.
Table 3-2. Master BFM Configuration
Configuration Field Description
Timing Variables
AXI4_CONFIG_SETUP_TIME The setup-time prior to the active edge
of ACLK, in units of simulator time-
steps for all signals.1 Default: 0.
AXI4_CONFIG_HOLD_TIME The hold-time after the active edge of
ACLK, in units of simulator time-steps
for all signals.1 Default: 0.
AXI4_CONFIG_MAX_TRANSACTION_TIME_
FACTOR
The maximum timeout duration for a
read/write transaction in clock cycles.
Default: 100000.
AXI4_CONFIG_BURST_TIMEOUT_FACTOR The maximum delay between the
individual phases of a read/write
transaction in clock cycles. Default:
10000.
AXI4_CONFIG_MAX_LATENCY_AWVALID_
ASSERTION_TO_AWREADY
The maximum timeout duration from
the assertion of AWVALID to the
assertion of AWREADY in clock
periods. Default: 1000.
AXI4_CONFIG_MAX_LATENCY_ARVALID_
ASSERTION_TO_ARREADY
The maximum timeout duration from
the assertion of ARVALID to the
assertion of ARREADY in clock
periods. Default: 10000.
Table 3-1. Master BFM Signal Width Parameters (cont.)
Signal Width Parameter Description
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