Microcomputer with address registers for dynamic bus control.

摘要

The microcomputer according to the invention comprises registers RA, RB defining an address area A1 (RA)... A2 (RB). Further, comparators CPA, CPB are provided for indicating whether an address signal on an address bus AB outputted by a processor unit lies within said specific address area A1 (RA)...A2 (RB). In this case the bus width or bus size of the microcomputer is adjusted according to the peripheral circuits (interfaces, memories ...) in this address area.