RE: [ethmac] bit order

[uc3857@alumnos.unican.es]

Of course phy get nibbles from mac,but mac have to deliver nibbles to 
phy in the correct order and must calculate the crc so he must to order 
the data nibbles in lsb to msb order and the crc in msb to lsb order, at 
least in 802.3, and i suposse that in ethernet ii dix also. I think that 
reordening the bits is a mac mission not a phy mission, phy only trasmit 
bits he donīt reorder them. 

Thanks



----- Original Message ----- 
From: "Igor Mohor" <igorm@o... > 
To: <ethmac@o... > 
Date: Tue, 9 Apr 2002 11:46:36 +0200 
Subject: RE: [ethmac] bit order 

> 
> 
> PHY gets nibbles from eth MAC. 
> 
> Regards, 
> 	Igor 
> 
> > -----Original Message----- 
> > From: owner-ethmac@o...  
> [/cgi-bin/post.cgi?cmd=new&to=owner-ethmac%20at%20opencores%
20dot%20org&msg=/ml-archive/ethmac/msg00018.shtml 
> > Behalf Of uc3857@a...  
> > Sent: 7. april 2002 21:17 
> > To: ethmac@o...  
> > Subject: [ethmac] bit order 
> > 
> > 
> > Hello: 
> > I see in 802.3 standard that bit transmission order is LSB to 
> MSB except 
> > in the CRC bytes. I suposse that in ethernet II this is the 
> same. Is this 
> > correct? Is this implemented in the eth MAC or this is a 
> mission of the 
> > phy? 
> > 
> > Thanks 
> > 
> > 
> 
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