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Local memory map in IP-Xact


Khushi
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In IP-Xact there is a section localMemoryMap inside address space which looks similar to the memoryMap. I am not sure to understand the difference between the two and what should be used and when.

Can you help me on this ?

Also in IP-xact, is it possible to define a register somewhere and instantiate it or use it at other places ?

Thanks

Khushi

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Hi Kushi,

A normal memory map is accessible through a slave bus interface; a local memory map is not. A local memory map is local to the component. You can describe internal registers in it, for instance, for a CPU. A local memory map is described with an address space that can be referenced from a cpu element. 

The current IEEE std. 1685-2014 does not allow separate definition and instantiation of registers. The Accellera IP-XACT Working Group is working on a proposal for a revision of the standard that does support that.

Best regards,
Erwin

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