FreeLists / si-list / [SI-LIST] Re: 8B10B encode/decode

[steve weir <weirsi@xxxxxxxxxx>]

Yafei, 2b/1b in a serial format is any of the many variations on MFM, 
phase encoding etc.  They can be done in very few gates and are DC 
balanced.  In a parallel format, 2b/1b is just complementary coding 
and requires only one inverter.

Steve.
At 12:04 PM 5/11/2006, Yafei Bi wrote:
>Hi, Steve,
>
>What is 2b/1b encoding, can you explain.
>
>Thanks
>
>Yafei
>
>--- Yafei Bi <yafei_bi@xxxxxxxxx> wrote:
>
> > Steve, thanks.
> >
> > the implementation target is ASIC and I am very
> > limited on the silicon area.
> >
> > Thanks
> >
> > Yafei
> >
> > --- steve weir <weirsi@xxxxxxxxxx> wrote:
> >
> > > It depends on the implementation target, ASIC,
> > FPGA
> > > etc.  That's a
> > > better question for the language or FPGA
> > reflectors.
> > >  There are lots
> > > of encoder / decoders for sale.
> > >
> > > 2b/1b takes few gates, but lots of wires.
> > >
> > > Steve
> > >
> > > At 11:36 AM 5/11/2006, Yafei Bi wrote:
> > > >Hi, SI experts,
> > > >
> > > >Can someone explains to me how 8B10B
> > > encoding/decoding
> > > >can be implemented with minimum hardware?
> > > >
> > > >I am aware of the concept but don't know much
> > about
> > > >the details to figure out how much hardware(in
> > this
> > > >case, silicon area) is needed to implemented the
> > > >functions.
> > > >
> > > >Arew there any other ways to encode the data
> > stream
> > > to
> > > >ensure DC balance, and requires very few gates?
> > > >
> > > >any suggestion/web links are appreciated.
> > > >
> > > >Thanks
> > > >
> > > >Yafei Bi
> > > >
> > > >
> > >
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