[En-Nut-Discussion] DM9000E vs. DM9000A

Ole Reinhardt ole.reinhardt at embedded-it.de
Fri Jun 29 10:04:37 CEST 2012

Hi Markus,

> I have a question about the DM9000E Ethernet controller of the Elektor 
> Internet Radio. For the controller is updated by the DM9000A can it be 
> replaced by the newer one without changing the OS or the firmware?

I'm not that familiar with the DM9000 series and even don't have the
schematics of the EIR at hand, but a short look to the datasheets shows,
that the DM9000A has a mich lower pin-count and uses a 16 bit data bus
instead of a 32 bit bus. So you might have to adapt the bus interface
and pin-usage for your board.

From the functional side they should be mostly compatible.




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