RE: 10G-BASE-T question

[Devendra Tripathi <devendra.tripathi@xxxxxxxxx>]

Looks like good idea to me.
Tripathi.

At 01:22 PM 6/8/99 -0700, you wrote:
>
>In my presentation last week I proposed a 32-bit interface running at
156.25MHz
>clock and using both edges of the clock for data transfer.
>
>I believe that this is a reasonable compromise:
>- Only 25% faster than the GMII --- the electrical spec (if we choose to have
>  one) should be less of a challenge.
>- Dealing with both edges of the clock (on the interface only) should not be
>  rocket science.
>- Fits well with either a 32- or a 64-bit internal MAC data path
(implementor's
>  choice).
>- Still allows a fairly decent level of integration without going to exotic
>  clock rates.
>- Does not affect the MAC frame format (same IPG and Preamble).
>  
>Implementations that are pin (rather than die) limited, can either choose to
>integrate the PCS and the SerDes (and "fill up" the die), or use the GMII at
>1.25GHz rate (as Bob suggested). I don't think we need a standard for that.
>
>The fact that we can run an interface at exotic speeds does not necessarily
>mean that we should. I certainly don't want any 1.25GHz clocks anywhere close
>to my ASIC.
>
>
>							Shimon.
>
>
>