[realtek] Re: natsemi problem

Manfred manfred@colorfullife.com
Fri, 29 Dec 2000 11:03:08 +0100


Donald Becker wrote:
> 
> On Mon, 25 Dec 2000, Manfred wrote:
> 
> > [Since there is no natsemi list, I've choosen the realtek list since
> > both drivers are described on the same page ;-)
> >
> > It seems that the fifo setup of the natsemi driver is wrong:
> > it causes lots of "Something Wicked happened" messages, and it violates
> > the spec: the tx DMA limit must be <= the tx fill threshold.(page 51 of
> > DP83815.pdf)
> 
> My datasheet copy does not list that restriction.

Which datasheet do you use?
I found the restriction on

http://www.national.com/ads-cgi/viewer.pl/ds/DP/DP83815.pdf?page=51

<<<
NOTE: The MXDMA setting value MUST not be greater then the TXCFG:FLTH
(Tx Fill Threshold) value.
>>>

--
	Manfred