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2.2. Functional operation

TZASC is a systems IP that performs security checks on AXI accesses to memory, or off-chip peripheral. This supports configurable number of regions. Each region is programmable for size, base address, enable, and security parameters. Using the secure_boot_lock, the programmers view can be locked to prevent erroneous writes. See Preventing writes to registers and using secure_boot_lock. The IP provides programmability in reporting faults using AXI response channel, and interrupt.

Figure 2.2. Functional operation of TZASC

Figure 2.2. Functional operation of TZASC

The following sections describe:


The TrustZone Address Space Controller (TZC-380) Supplement to AMBA Designer (ADR-301) User Guide provides information about how to configure the controller.