[En-Nut-Discussion] DM9000E vs. DM9000A

[Ole Reinhardt]

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.

Bye,

Ole

-- 

Thermotemp GmbH, Embedded-IT

Embedded Hard-/ Software and Open Source Development, 
Integration and Consulting

http://www.embedded-it.de

Geschäftsstelle Siegen - Steinstraße 67 - D-57072 Siegen - 
tel +49 (0)271 5513597, +49 (0)271-73681 - fax +49 (0)271 736 97

Hauptsitz - Hademarscher Weg 7 - 13503 Berlin
Tel +49 (0)30 4315205 - Fax +49 (0)30 43665002
Geschäftsführer: Jörg Friedrichs, Ole Reinhardt
Handelsregister Berlin Charlottenburg HRB 45978 UstID DE 156329280