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Picking apart the circuits in the ARM1 – the ancestor of your smartphone's brain

Anonymous Tribble

I managed to get a look at some bits of the Acorn internal memos concerning the ARM2 and its support chips on the original Archimedes design. Very interesting. Discussions about what audio capabilities (stereo output and/or input) on the IO chip and "how much sand it would require" :)

I found the ARM1 to be a great chip to use on my BBC Micro and went on to create stuff on the ARM2 and 3 on my Archimedes.

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