Maplin ROM Box: Difference between revisions
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== Manual == | == Manual == | ||
* | * [[Media:Maplin ROM-Box Manual.pdf|Amstrad Expansion System Part 1: Maplin ROM-Box Manual]] (pdf) | ||
* Amstrad Expansion System Part 2 | * [[Media:Maplins Amstrad Expansion System Part 2 (Project Book19).pdf|Amstrad Expansion System Part 2: 6x8bit I/O Port]] (pdf) | ||
== Weblinks == | == Weblinks == | ||
Revision as of 13:31, 23 August 2010
Description
The Amstrad Expansion System aka Maplin ROM Card from Maplin is a DIY project by Dave Goodman and John Attfield.
The Amstrad Expansion System (Part 1) was primarily a rom box for the CPC series, but had additional features:
- Special non-standard Buffered Expansion Port (with pre-decoded IOSEL line, on access to "free" I/O addresss)
- Lightpen socket (3.5mm stereo socket - just a connector with LPEN,5V,GND - without any additional electronics)
The DIY project consisted of a 16 page instruction leaflet.
Pictures
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ROM Box with ROMs -
ROM Box -
ROM Box and photocopy of how-to build manual -
Connected showing ROMs
