hi,


8.Proposed processor : AtMega128 as the master PCL controller
9.Keyboard & Graphic LCD controller : P89C51RD2
10.digital input & output : AT89C51


Hmm, I think it all may be done with only one MCU, for example 8051 from SiLabs. And I do not see a reason to use the AVR-core which is produced by one vendor only. What will you do next week when Atmel announce end-of-life notification for it?

Regards,
Oleg