I know that the Atmel AT91SAM7X-256 board uses the Davicom DM9160 PHY and the AVR32 EVK1105 uses the National Semiconductor DM83484I PHY. Where is the driver located for the DM834848I PHY and can a custom build be done to use the National part versus the Davicom part with the AT91SAM7X-256? Bill Basser