Patent · US Expired

Flexible address programming with wrap blocking

US6519690B1 · kind B1 · utility

16Cited by
2References
21Claims
0Family size

Assignee

Inventor

Key dates

Filing dateAug 23, 1999
Grant dateFeb 11, 2003
Priority date
Expiry dateAug 23, 2019

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG06F12/0888
  • WIPO fieldComputer technology
  • WIPO sectorElectrical engineering

Abstract

A flexible address mapping method and mechanism allows mapping regions of a microcontroller's memory and I/O address spaces for a variety of applications by defining memory regions which are mapped to one of a set of physical devices by a programmable address mapper controlled by a set of programmable address registers. The mapping allows setting attributes for a memory region to prohibit writes, caching, and code execution. A deterministic priority scheme allows memory regions to overlap, mapping addresses in overlapping regions to the device specified by the highest priority programmable address register.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.