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Forum Post: DDR3 memory mapping

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Hi!

I'm working with C6678 DSP. I'd like to use 4GB DDR3 at my custom board. As far I understand from C6678 datasheet each DSP core has max 2 GB memory area at 0x80000000 to access to external DDR3 memory. The 32-bit DSP logical address converts to 36-bit physical address by XMC. So my questions are:

1. Is max available to each DSP core DDR3 memory length 2 GB?

2. If I want to use 4 GB DDR3 I need to split it between DSP cores by configuring XMC MPAX segments for each core. Am I right?


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