Caches in embedded systems

Hi
I would like to know what sort of caches (Icache and Dcache) do
typical embedded systems use. I know caches are avoided in real time
applications but wondering when they are used what sort of
configuration do they have Directmapped/assoictaivity, what line size
etc, writeback/write through ? That aso leads me to askembedded systems
with caches what sort of applications are they used in. Can any one
give me some examples.

thanks
Shrey

.

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