| 摘要 |
PROBLEM TO BE SOLVED: To provide improved microcontroller structure and a paging system not to increase the size of a microcontroller. SOLUTION: This paging system includes a process to linearize the entire address area of a random access memory, a process to divide the linearized address area of the random access memory into plural pages and in which each of the plural pages is selected from a group with size of 256 bytes and 64 K bytes, a process to use the pages of the random access memory exclusive for special and multi-purpose registers and a process not to affect the present operation of the microcomputer and not to change the presently selected address stored in a page selection register which is used by the microcomputer when the microcomputer is set so that forced data access is generated by the exclusive pages.
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