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|Home > Programming Reference for Base FVPs > Base - VE compatibility > Base - VE compatibility - disable security|
Base Platform FVPs have an enhanced security map for peripherals. By default, it restricts access to some peripherals.
Software must program the TZC-400 to make any accesses to DRAM, because the reset configuration blocks all accesses.
For backward compatibility with software that cannot program the TZC-400, this parameter setting permits all accesses regardless of security state: