[SI-LIST] Re: PHY PCS
- From: "Edi Fraiman" <Edi.Fraiman@xxxxxxxxxxxxx>
- To: <Ravindra.Johari@xxxxxxxxxxxxxxxxxx>, <si-list@xxxxxxxxxxxxx>
- Date: Thu, 2 Feb 2006 11:20:32 +0200
Hi,
8b/10b encoding is IBM patented encoding method.
The benefits are:
1. DC balance
2. Bit synchronization is more easily
3. Error detection is improved
4. Control character can be distinguished from data characters
Edi
> -----Original Message-----
> From: si-list-bounce@xxxxxxxxxxxxx
[mailto:si-list-bounce@xxxxxxxxxxxxx]
> On Behalf Of Ravindra Johari
> Sent: Thursday, February 02, 2006 11:09 AM
> To: si-list@xxxxxxxxxxxxx
> Subject: [SI-LIST] PHY PCS
>
> Hi Gurus,
>
>
> Have a very generic question about Physical Layer Device.
>
> In the PCS i.e the Physical coding sublayer of the PHY Device why is
the
> 8b/10b encoding/decoding required.
>
> Why not the serial signals received by the MDI directly interfaced
with
> the
> MAC without encoding/decoding??
>
>
>
> Apologies, if this is not related to Signal Integrity...
>
>
>
> Thanks and Regards,
>
> Ravi..
>
>
>
>
>
>
>
>
>
>
>
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