Various informations for re-construction and modify concerning hardware of e500 series are known due to magazines and web sites. For an example, clock-up and extension SRAMs in e500 and e550 are well-known, and those are also old stuff. Then I would inform in particular how to extend SRAMs in e650 and install a RealTimeClock interiorly.
I also wrote about slight usage and uploaded opusculums for ampliated one on other pages.
I've not finished full and particular account. Alternatively, I threw the informations into shape in one sheet. If you have elementary knowledge this paper would be convenience. Please click following dummy image and save its image file (210kb).
