On Jan 27, 2010, at 12:26 PM, Jochen Kunz wrote:
Keep in mind,
every USB host controller is an 8051
??? Please elaborate.
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.
Or do you mean the PeeCee PS/2 keyboard controller
emulation for USB
keyboards? This is not done by the USB host controller. (AFAIK)
No, the host controller itself.
-Dave
--
Dave McGuire
Port Charlotte, FL