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SystemRDL / PeakRDL-ipxact

Import and export IP-XACT XML register models
http://peakrdl-ipxact.readthedocs.io
GNU General Public License v3.0
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alternate registers #17

Closed markcohen32 closed 11 months ago

markcohen32 commented 1 year ago

Hi,

I have a question about the parsing of the IP-XACT file. I have a field called "alternate registers" - is it supposed to be parsed? how does the parser treats it? currently it looks like it ignores it.

Thanks.

amykyta3 commented 1 year ago

The IP-XACT importer does its best to transcribe the XML into SystemRDL concepts. Unfortunately the IP-XACT feature set does not perfectly overlap with SystemRDL concepts, so there are some things that cannot be faithfully represented in SystemRDL concepts and are ignored. The alternateRegisters element is one of these concepts that do not really have a good counterpart in RDL, so it is ignored.

For more details, see: https://peakrdl-ipxact.readthedocs.io/en/latest/importer.html

hughjackson commented 11 months ago

It could be useful if the importer handled the special case of one read-only and one write-only register. This is supported in the SystemRDL spec and is sometimes used to differentiate access to transmit and receive FIFOs at the same address