ULA

Summary

Description Documentation covering the functioning of the Acorn Electron and its ULA
Owner Paul Boddie <paul@boddie.org.uk>
Last change Sat, 01 Aug 2020 01:33:30 +0200

Shortlog

2 weeks ago Paul Boddie Added notes about memory pricing and other machines using the 4164. default tip
3 months ago Paul Boddie Added a note about the CPU performance limitations of suspending ULA RAM access.
4 months ago Paul Boddie Added notes on two-bytes-per-cycle ULA accesses and related considerations.
4 months ago Paul Boddie Added benchmark observations and a table of standard bandwidth characteristics.
4 months ago Paul Boddie Added clarifications about the use of 8MHz cycles with an 8-bit memory channel.
4 months ago Paul Boddie Added notes on 4164 RAM costs referencing historical remarks.
4 months ago Paul Boddie Added more remarks, particularly regarding direct CPU access to RAM.
4 months ago Paul Boddie Added remarks on 8-bit wide RAM access and possible 8MHz ULA frequency.
4 months ago Paul Boddie Added some memory bandwidth and architecture notes.
8 months ago Paul Boddie Added a note about keyboard access timings.

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2 weeks ago 940fdf55c251 default
2014-02-01 83648f6e7be7 shedskin

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