24 May
2003
24 May
'03
4:49 p.m.
[...]
This may not reduce the IC count that much!. I've recently been looking
at the HP9810-series calculators, and the processor in there is a bit
serial unit. There are 4 cards of around 20 chips each for the processor
(control, data path, clock, I/O interface) and another 2 or 3 cards,
again 20 chips each, for the mrmory interface. Which is easily comparable
to a full-parallel 16 bit processor.
-tony
I am doing a 20
bit CPU with about 125 chips total
in the computer and front panel. About 50?
more chips for memory and serial i/o.
http://www.jetnet.ab.ca/users/bfranchuk/ldp/ldp1.html
Ben.
Hi
All make the assumption that you must make 8 bit/16bit
or, in your case, 20 bit. One can make a 1 bit alu that
can have data width controlled by instruction. It may