A quick glance at the data sheet shows they call the interface a "three wire" serial, looks to be equivalent to SPI. Too bad chip makers have to trademark their interface names to make it more confusing.

Ramesh, Take a look at the Atmel website, it would appear that the AT93C46 eeprom uses the same serial interface (read the data sheets to confirm). I know Atmel has example code.

With the serial interface code examples, and the ADC datasheet, you should be able to work out the rest.

Dennis