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Date:	Thu, 18 Oct 2007 15:41:21 -0700
From:	"Steven Levine" <steve53@earthlink.net >
Reply-To:	scoug-help@scoug.com
To:	scoug-help@scoug.com
Subject:	SCOUG-Help: You say PHY, I Say 'Phooey.'

In <122834.97626.qm@web81401.mail.mud.yahoo.com>, on 10/17/07
at 10:35 PM, J R FOX said:

Hi,

>Martin's recent post was the first I had heard about
>this, but now I see that nearly all the recent MBs
>seem to include it, if I can judge from the specs for
>Asus and Gigabyte MBs. Yeah, I looked up the
>definition online, but I remain unenlightened.

There's really nothing new here other than packaging.

Here's the definition of a specific PHY device

Intel's Ethernet PHY transceivers implement all the required functions of
the Physical Layer Signaling (PLS) and Media Attchment Unit (MAU) as
defined in IEEE 802.3 and are designed for 10BASE-T hub, switch, and LAN
adapter board products.

In the past, the functionality required a number of discrete components.
Now you can buy a single part that does everything with a minumum of
additional passive components such as caps and resistors.

>Just
>*what* extra functionality is this supposed to offer
>users -- in simple terms, please -- that they really
>need or can use ?

There's no extra functionality other than lower overall cost.

>Query: If the specs say 2 PATA / IDE connectors, does
>that strongly imply two controllers ?

Not the way I read English. You probably want to look at an image of the
MB.

>(I've gotten
>used to having the two separate control channels in
>the Shuttle box,

That was then. You probably have a couple of serial ports too.

Steven

--
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"Steven Levine" MR2/ICE 3.00 beta 08 #10183 eCS/Warp/DIY/14.103a_W4 etc.
www.scoug.com irc.ca.webbnet.info #scoug (Wed 7pm PST)
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