Altera Mentor Verification IP Altera Edition AMBA AXI3/4TM - Manual (Page 367)

VHDL AXI3 and AXI4 Slave BFMs
Slave BFM Configuration
Mentor VIP AE AXI3/4 User Guide, V10.2b 347
September 2013
A slave BFM has configuration fields that you can set via the set_config() function to configure
timeout factors, slave exclusive support, setup and hold times, etc. You can also get the value of
a configuration field via the
get_config() procedures. The full list of configuration fields is
described in the Table 9-2 .
Table 9-1. Slave BFM Signal Width Parameters
Signal Width Parameter Description
**_ADDRESS_WIDTH Address signal width in bits. This applies to the ARADDR and
AWADDR signals. Refer to the AMBA AXI Protocol
specification for more details. Default: 32.
**_RDATA_WIDTH Read data signal width in bits. This applies to the RDATA
signals. Refer to the AMBA AXI Protocol specification for more
details. Default: 64.
**_WDATA_WIDTH Write data signal width in bits. This applies to the WDATA
signals. Refer to the AMBA AXI Protocol specification for more
details. Default: 64.
**_ID_WIDTH ID signal width in bits. This applies to the RID and WID signals.
Refer to the AMBA AXI Protocol specification for more details.
Default: 4.
AXI4_USER_WIDTH (AXI4) User data signal width in bits. This applies to the
ARUSER, AWUSER, RUSER, WUSER and BUSER signals.
Refer to the AMBA AXI Protocol specification for more details.
Default: 8.
AXI4_REGION_MAP_SIZE (AXI4) Region signal width in bits. This applies to the
ARREGION and AWREGION signals. Refer to the AMBA AXI
Protocol specification for more details. Default: 16.
Table 9-2. Slave BFM Configuration
Configuration Field Description
Timing Variables
**_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.
**_CONFIG_HOLD_TIME The hold-time after the active edge of ACLK,
in units of simulator time-steps for all
signals.
1
Default: 0.
**_CONFIG_MAX_TRANSACTION_
TIME_FACTOR
The maximum timeout duration for a
read/write transaction in clock cycles.
Default: 100000.
AXI_CONFIG_TIMEOUT_MAX_DATA_TRANSFER (AXI3) The maximum number of write data
beats that the AXI3 BFM can generate as
part of write data burst of write transfer.
Default: 1024.