I have found several detailed CPC memory maps for the RAM/ROM range. But I cannot find a detailed I/O memory map. It would be very useful to know where to map registers during peripheral development.
There's these that are quite useful:
http://www.cpcwiki.eu/index.php/I/O_Port_Summary
http://cpctech.cpc-live.com/docs/iopord.html
Thanks!