The ZX Spectrum ULA is an essential read for the electronics hobbyist, student or electronic engineer wishing to design their own retro-style microcomputer or anyone with an interest in historical micro-electronic and digital design.
The Zx Spectrum Ula How To Design A Microcomputer Pdf Download
This is an implementation of the Sinclair ULA chip, found in ZX Spectrum microcomputers. The project offers various implementations: both FPGA friendly (with separate input and output data buses), and CPLD ready, to be used as a replacement for the many chips that comprise the ULA found in some clones.This project is mostly based upon the work of Chris Smith. Chris designed a ZX Spectrum clon, the "Harlequin". A PCB has been developed by Don "Superfo", which uses discrete logic to implement the ULA, as Chris did. The CPLD version of this implementation is aimed to serve as replacement for that clone.The ULA implementation follows, where possible, the original ULA timmings, as stated in "The ZX Spectrum ULA: how to design a microcomputer", written by Chris Smith and published by ZX Design and Media, ISBN 978-0-9565071-0-5There are implementations with some enhancements such as Timex hicolour support and ULA+ support. 2ff7e9595c
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