RE: [802.3ae] 64/66b Encoding phenomena
On Sat, 2002-05-25 at 04:22, ti wrote:
> Hi Justin,
> > This data stream can be interpreted two different ways depending on
> > where the 64 bit boundary falls.
> > 1. DDDD_DDDT, IIIE_EIII, SDDD_DDDD with block type fields of FF, 1E,
> > and 78 respectively. (T C S)
> > 2. DDDT IIIE, EIII SDDD corresponding to block type fields
> > of B4 and 33
> > respectively, these are T_BLOCK_TYPES of T and S.
> > Resulting in 1. becoming /T/ /E/ /S/
> I agree.
> > while 2. would remain /S/ /T/
> Did you mean /T/ /S/?
> And where is the problem? Did I understand something wrong?
> I see no /E/- Types!
The issue is that under one condition, you get an /E/ and a drop frame,
and under another condition, you dont. With the exact same bit stream.
Justin Gaither Phone: 512-306-7292 x529
Xilinx, Communications Technology Div. Fax: 512-306-7293
500 N. Capital of TX Hwy.
Bldg 3 email: justin.gaither@xxxxxxxxxx
Austin, TX 78746 WWW: www.rocketchips.com