CUBIX/6809 updates
woodelf
bfranchuk at jetnet.ab.ca
Sun Dec 11 17:11:45 CST 2005
Allison wrote:
>If I were building TTL again nothng less than 24bits. ;)
>
>
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From the quick note scratching a small Bit Slice 12/24 bit cpu looks
rather
simple. Two modest sized ALU 12 bit boards and ROM based Control unit.
Memory would peg out about 1 meg without a MMU.
A 6800/6502 memory cycle would be used, with setup for R/W, VMA
FF's from the PROM at about 150 ns giving a 1.5 MHZ memory cycle.
>Allison
>
>
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