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[Reference](http://sourceware.org/git/?p=newlib.git;a=blob;f=newlib/libc/machine/sh/setjmp.S;h=520218f234abb42f71bdebdbf6b246c7ad0652b6;hb=HEAD)
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> IL memory - 16k of on-chip memory (base address 0xE5200000), so it's very fast. AHelper confirmed some time ago that it's available for use in our own programs via a bit of experimentation. It's a rather small amount of memory, but still large enough to hold useful data. You might want to put a performance-critical data structure in this memory, or just copy (decompress?) your graphics data here for slightly faster blitting.
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This means that this IL memory could be used in critical memory portions for fast processing.
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> MERAM - 128k of on-chip memory, so the basic use case is like IL memory (base address 0xE8080000), but probably a little bit slower. More interestingly, it can function as a cache for several of the more specialized peripherals. Of those which can connect to the MERAM, though, only one appears to be of use to us on this hardware:
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L2 Cache? |
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