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RE: [ethmac] Specification updated





> -----Original Message-----
> From: owner-ethmac@opencores.org [mailto:owner-ethmac@opencores.org]On
> Behalf Of Erez Volk
> Sent: 6. december 2001 13:03
> To: ethmac@opencores.org
> Subject: Re: [ethmac] Specification updated
> 
> 
> Igor Mohor wrote:
> > 
> > Hi, Guys,
> > 
> > I fixed one missing thing in the spec. so it is updated.
> > (RX_BD_NUM register added instead of the RB_BD_ADDR).
> > 
> > Regards,
> >         Igor
> > --
> > To unsubscribe from ethmac mailing list please visit 
> http://www.opencores.org/mailinglists.shtml
> 
> 
> There's something I'm not completely sure about: it seems that this
> register (btw there are some places in the doc where the old name is
> still used) 

Thanks. I fixed it. Document is updated. RX_BD_NUM is changed to TX_BD_NUM,
which is more correct. This register holds the number of the TX buffer
descriptors.
Revision of the document remains the same. 

Regards,
	Igor

> holds the _number_ of the BD i.e. from 0 to 0x100; wouldn't
> it be more consistent with the interface to have this register hold the
> address as seen to Wishbone, i.e. base + 0x400...base + 0x800?  All it
> takes is to use bits [9:2] instead of [7:0] and possibly check the
> others for validity.



> 
> Thanks, 
> Erez
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