we are consider to use MAC controller with aduc7026 and additional PHY to desing full ethernet solution.
is it possible to use aduc's SPI for connection with MAC?
which MAC controller would be recommended?
For a better performance on the SPI I would use the ADuC7126, this has a improved SPI able to run up to 20MHz SPI-Clock.
The older ADuC7026 is much slower on SPI. Also the ADuC7126 has more memory (Flash and SRAM) which is good for implementing a Ethernet communication. As we unfortunately have no Ethernet MAC in our portfolio, I would us one from a well known supplier. If you look up on Google you may find quickly - i.e. one from Microchip, ENC28J60 but only 10Mbps and one form Micrel KSZ8851 with 100Mbps with a search for "Ethernet SPI"
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