The decoding is clean, this means there aren't any mirror ports or undecoded address bits. Just the addresses listed below are used.
The addresses are in the I/O range, which means you access them with the OUT and IN instructions. They are not memory mapped, and to match with the CPC address decoding, the address is decoded on 16 bytes. This makes using OTIR and similar looped instructions tricky, but is required for compatibility with the CPC.
==== CH376 registers ====
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== List of compatible mouses mice ==
The mouse can be used in 2 modes:
=== Whitelist ===
The following USB mice work seamlessly with the Albireo in [[SymbOS]].
Legacy mice (used only):
* Genius DX-150X (GM-150028)
* Logitech M100 (still available; 03/2025)
* Logitech M105
* Microsoft 3902C693
Still available (11/2025):
* Cherry MC1000
* Logitech M100
* Logitech B100
=== Blacklist ===
*[https://www.cpcwiki.eu/forum/amstrad-cpc-hardware/albireo-usbsdserial-interface-for-cpc/ Albireo] [https://www.cpcwiki.eu/forum/amstrad-cpc-hardware/albireo-usbsd-interface-for-cpc-new-version-without-serial/ Albireo 2.0] Topics on CPCWiki forum
*[[Media:Albireo1.0 schematics.pdf|Albireo KiCad schematics]]
*[https://framagit.org/shinra/albireo Albireo project] [https://framagit.org/offset/albireo-acepansion Albireo ACEpansion] on Framagit
*[https://pulkomandy.github.io/shinra.github.io/albireo.html Albireo - Programmer's manual]
*[[Media:Ch376ds1.pdf|CH376 datasheet]] [[Media:CH376DS2.PDF|CH376 auxiliary commands]] USB flash drive and SD card controller