Datasheets, user manuals, and other material useful when developing for the SAM Coupé home computer.
To make it easier to download all of these in one place as a reference. And if AI keeps proceeding at pace, it's pretty easy to point AI tools at these to read them.
- Official Zilog Z80 User Documentation (original source)
- The Undocumented Z80 CPU (Sean Young) (original source)
- WD-1772-02 documentation, with additions by Jean Louis-Guérin (DrCoolZic) (original source)
- Atari ST DMA/FD/HD Programming by Jean Louis-Guérin (DrCoolZic) (original source). Note: The SAM doesn't have a DMA controller or interrupts for handling FDD access, but this guide is excellent and handles - and explains! - a number of edge cases and makes great recommendations.
Note: The SAM didn't have a built in RTC; all RTCs are external add-ons.
- Okimate RTC Chip documentation (found in the SAMBus extension card)
- Dallas Realtime Clock
- Dallas 1287 Documentation (actually for the 1287A, but they're equivalent from a programming perspective)
- Dallas 12887 Documentation
- Dallas 12885-12C887A Documentation
This archive is built from scattered documentation found all over the internet. It wouldn't have been possible without the dedication of a small rag-tag group of people archiving programming material, including:
These files may have their own licenses (for example, Sean Young's Undocumented Z80 doc, which is GPL'd). Many are copyright to their original authors and companies. However, they're datasheets: for decades, the whole point of datasheets was to redistribute them to get them into the hands of other people who would build things with your product using that information.
As such, I'm bundling together a bunch of information here in one place.
If a copyright holder is unhappy with this and is willing to provide an archival grade URL where we can download them from, I'm happy to create a script instead, which downloads them on behalf of the user &endash; or at least a file showing where they can find them &endash; and remove them from the repository.
But please don't. This is part of your products' legacy, and I encourage you to allow us to keep them here.
Thanks!