Messages in this thread | | | Date | Tue, 16 Sep 2008 22:27:41 -0700 | From | Alessio Sangalli <> | Subject | Re: Driver for tightly coupled memory |
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Valdis.Kletnieks@vt.edu wrote:
> What sort of hardware/software interface does the TCM provide? You mentioned > that it could be accessed even while main memory is being accessed - what does > that look like from the software level?
Well I should ask the details to the hardware engineers but it's like a separate channel than the one used for main memory. It is not cacheable either. To the CPU, it just appears to be mapped at some location on the addressable space. Accessing this TCM will not have any impact on main memory access, so bursts etc won't be interrupted; other than that, TCM has double the bandwidth than standard memory - but it's tiny in size, something like 8 to 32kB as I mentioned earlier.
Hope I was clear enough, feel free to ask me more details if you need
bye as
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