27 Jan
2010
27 Jan
'10
6:12 p.m.
On 27 Jan 2010 at 12:38, Dave McGuire wrote:
Standard USB host controllers are (unless this has
changed
recently) based on an 8051 core. Very deeply embedded, sure, but
that's kinda the point. ;) As I understand it, the very first
prototype implementations were discrete-chip 8051s, but probably of
some more modern incarnation, and that basic design hasn't had any
reason to change.
To some extent, that may still be true for the devices themselves.
I've still got a bunch of USB peripherals with Intel N82930A3 chips
on them, which, I believe is nothing more than a specially-configured
8051.
--Chuck