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Cache Configuration Size

renu
Intellectual 300 points

I am working on DM6446 processor.It is having 3 level memory L1,L2 and external memory.

I want to enable cache(L1,L2) of C64X+ processor. For that i've read DM6446 datasheet in which it is written L2 size is 64KB but user guide says you can configure it to 256KB.what does it mean?

I am not clear with memory architecture(specifically size) of C64X+ processor.

C64X+ DSP Megamodule Reference guide says L1P supports 1MB RAM and ROM but datasheet of DM6446 says 32KB only. I am not clear with the size of L1P and L1D.

Kindly help me out

  • 0
    Guru 31670 points

    Renu,

    Data sheet is correct. Basically the mega module reference guide is for the processor as such. It refers to the maximum it can support. But an SoC may not always have the maximum supported because of various factors. So, the datasheet of the SoC will give more accurate info.