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C6747---interrupt control registers on the CPU.

sky10367
Prodigy 85 points


what are the addressesof CSR(Control status register), ICR,IER,IFR and so on..I can not find the registers addresses.

thanks.

  • 0
    TI__Guru* 84110 points

    Almost all of the registers in the C6747 are memory-mapped. But there is a Control Register File with about 30 registers that are not memory-mapped, and this includes the ones you listed above. These must be accessed directly by a specific assembly instruction or C construct.

    The documents you will want to look at are

    • sprufe8 - DSP CPU & Instruction Set Reference Guide [search for "control register"]
    • sprufk5 - DSP Megamodule Reference Guide [good information since you are looking at this DSP in detail]
    • spru187 - C6000 Optimizing Compiler User's Guide [search for "cregister"]
  • 0 in reply to RandyP
    Prodigy 85 points

    thank you very much

  • 0 in reply to sky10367
    TI__Mastermind 24340 points

    Hi sky,

    You can also access the non-mapped registers using C. All you have to do is to include the file c6x.h. For example:

    # include <c6x.h>

    void main (){

    int value;

    value = CSR;

    // or

    CSR = value;

    }