3.1. Interface

Table 3.1 lists the user-defined parameters for setting the interface characteristics. Change them to match your design specification.

Table 3.1. Interface parameters

NameDescriptionDefault
DATA_WIDTHWidth of the system data buses.64
ID_WIDTH

Number of channel ID bits required, address, write, read, and write response.

4
WDEPTHWrite-interleave depth of monitored slave interface.1
MAXRBURSTSSize of FIFOs for storing outstanding read bursts. This must be equal to or greater than the number of outstanding read bursts to the slave interface.16
MAXWBURSTSSize of FIFOs for storing outstanding write bursts. This must be equal to or greater than the number of outstanding write bursts to the slave interface.16
ADDR_WIDTHWidth of the address bus.32
EXMON_WIDTHThe exclusive access monitor width required.4
AWUSER_WIDTHWidth of the user AW sideband field.32
WUSER_WIDTHWidth of the user W sideband field.32
BUSER_WIDTHWidth of the user B sideband field.32
ARUSER_WIDTHWidth of the user AR sideband field.32
RUSER_WIDTHWidth of the user R sideband field.32

Note

The AMBA AXI Protocol v1.0 Specification does not define the user signals shown in Table 3.1.

Copyright © 2005, 2006, 2009 ARM. All rights reserved.ARM DUI 0305C
Non-Confidential