Well, I almost sure that you have to use the A1, the other chips have a different configuration, like they can have an eeprom. (23 years ago, 13-Jun-01, to lugnet.robotics.handyboard)
The E1 chip works with the Handy Board. Actually, any of the 52-pin PLCC 6811s will work. You may have to change the CONFIG register to get Interactive C to run. Fred (...) (23 years ago, 13-Jun-01, to lugnet.robotics.handyboard)
