> On 19 Apr, Tim Waugh wrote:
> > On Wed, Apr 18, 2001 at 11:06:15PM +0200, Tommy Kjellqvist wrote:
> >> Whitch mode can be expected to deliver the highest performance?
> > It depends on your application, I think. ECP seems to be quite
> > popular for newer devices though.
> >> Is there any important differences between the two modes except the
> >> fact that when transfering data from a peripherial to the host using
> >> ECP the peripherial initiate the transfer?
ECP can also be nicer to the host.
EPP pretty much needs the host to bit-bang (well, pay more or less complete
attention). ECP can be done with DMA.
Throughput can be on the order of a meg a second plus.
The host only needs to touch the data every 1/30th of a second or so, not
every few us.
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This archive was generated by hypermail 2b29 : Fri Apr 20 2001 - 18:12:12 EDT