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2.1.3. Miscellaneous signals

There are two miscellaneous signals:

  • secure_boot_lock

  • tzasc_int.

Figure 2.1 shows the miscellaneous signals that the TZASC provides.

Figure 2.1. Miscellaneous signals

Figure 2.1. Miscellaneous signals

Asserting secure_boot_lock enhances the security of the TZASC. See Preventing writes to registers and using secure_boot_lock.

You can program the TZASC to assert tzasc_int when it denies an AXI master access to a region. See Denied AXI transactions.