PC/104

phiscock-g851W1bGYuGnS0EtXVNi6w at public.gmane.org phiscock-g851W1bGYuGnS0EtXVNi6w at public.gmane.org
Wed Jul 18 18:10:50 UTC 2007


> Anything with an 8-bit  processor is by now an antique.

Last time I looked, 8 bit machines were outselling 16 and 32 bit machines
by a fair margin. Even 4 bit machines are still popular.

Furthermore, it depends what you need to do. If you want to use the chip
real estate for cache, pipelining and MMU, that will help with raw
performance. If you want hardware timers, SCI, SPI, A/D and so on, then
that will reduce the board parts count. (In some cases, you can get both.
But not at rock-bottom price.)

Most of these 8 bit machines are 8/16 bit manipulators. For example, in
the 68HC11, the basic memory width is 8 bits but there are 16 bit index
registers.

-- 
Peter Hiscocks
Syscomp Electronic Design Limited, Toronto
http://www.syscompdesign.com
USB Oscilloscope and Waveform Generator
647-839-0325

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