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Memory Protection using XMPAX in C6670

Hi TI,

  I want to protect a section(32KB) of memory in MSMC (0x0c000000)  .  I have configured the XMC's

XMAPX as  stMPAX_Hi.bAddr =  0xc0000;
      stMPAX_Hi.segSize =  0x8000;
      stMPAX_Lo.rAddr = 0x0C0000;
      stMPAX_Lo.sr = 1;
      stMPAX_Lo.sw = 0;
      stMPAX_Lo.sx = 1;
      stMPAX_Lo.ur = 0;
      stMPAX_Lo.uw = 0;
      stMPAX_Lo.ux = 0;

But i am able to  write the memory from core 0 and read the memory from core1. Is my configuration is correct? Could you please help me to find where i am going wrong.

Regards,

Janeeth