• BP147(TZPC) and TZC-380
    hi, experts: TZC-380 : TZ Address Space Controller It could control dram regions more detailed than BP147(TZPC). So: Will BP147 be deprecated? Or these 2 IPs have different usuage? best wishes,
  • In processors supporting TrustZone, how is secure memory access protected from a non- secure world application accessing it?
    For example, we define a region to be secure. If a non secure app is trying to acess that region, what protection mechanism exists in hardware which will prevent that?
  • AXI Atomic Access
    Hello, I don't know whether this question has been asked or not. If yes please direct me to the appropriate discussion. My question is: 1. Suppose there are two masters, M0, M1 and one slave, S0. M0 initiates...
  • Non-secure EXC_RETURN value to Secure HardFault Handler
    Hi, I have scenario where SCS.AIRCR.BFHFNMINS is the default value of 0, which if I understand correctly means that whenever there is hard-fault, it would be trapped by secure hard-fault handler. ...
  • Programming FPU for Secure and Non Secure Use
    I was getting a NOCP Usage Fault when my non-secure thread entered WIC sleep and a Secure Handler woke up the processor from WIC sleep. I wasn't using any FPU code and I could not understand why the...