Messages in this thread | | | Date | Fri, 16 Dec 2005 18:56:11 -0800 | From | "Randy.Dunlap" <> | Subject | Re: ENDEC port and MII interface |
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On Tue, 13 Dec 2005 23:27:05 -0800 kernel coder wrote:
> hi, > I'm trying to write ethernet driver.I need some explaination on > ENDEC port and MII interface.By googling i've come to know that MII is > used for phy communication by modern ethernet cards,but i haven't > found much info on ENDEC ports. > > Actually mine card has option to select ENDEC port or MII interface > for transmit and recieve. > > Please tell me which one should i choose and why.
A little googling tells me that ENDECs are probably limited to 10 Mbps ethernet. E.g., one ethernet controller spec says:
Flexible IEEE 802.3 MII (10/100Mbps) and ENDEC (10Mbps) Interfaces Allow Selection of PHY
ENDECs just convert from 8bit data to 10bit data on Transmit (8b/10b) and from 10bit data to 8bit data on Receive. Is ENDEC vs. MII selection a software config on your adapter or a hardware config?
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