Re: [ts-7000] ethernet controller

[joel garner <>]

hi all,

Lennert Buytenhek <> wrote:     On Sat, Mar 04, 2006 at 12:59:43AM -0800, anand bhavnani wrote:
 
 > hi,
 
 Hello,
 
 > there are on board controllers for many devices on the 9302 processor....
 > but we also have an external controller for ethernet. why do we need
 > external controllers when we have one on the board itself..
 
 They are different things.  Roughly speaking, the ethernet controller
 on the chip pulls packets from the system RAM and sends them to the
 Micrel PHY (the external ethernet "controller"), while the PHY converts
 those packets to bits to put on the wire.  (And vice versa.)
 
 

so is it that the on board controller works on the DATA LINK LAYER and the ETHERNET phy michrel works on PHYSICAL LAYER. (phy for PHYSICAL?)

Chill,
Joel.

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