19.6.10.2 TrustZone Specific Protected Devices

On Trust-Zone devices, this peripheral has different access permissions depending on PAC Security Attribution (Secure or Non-Secure):
  • If the peripheral is configured as Non-Secure in the PAC:
    • Secure access and Non-Secure access are granted
  • If the peripheral is configured as Secure in the PAC:
    • Secure access is granted
    • Non-Secure access is discarded (Write is ignored, read 0x0) and a PAC error is triggered
Refer to Peripherals Security Attribution for more information.