Patent · US Expired

Processor memory system

US6708253B2 · kind B2 · utility

1Cited by

4References

13Claims

0Family size

Assignee

KONINKLIJKE PHILIPS ELECTRONICS NV · NL

Inventors

Axel Hertwig · Wendelstein, DE
Harald Bauer · Ehningen, DE
Urs Fawer · Baden, CH

Key dates

Filing date	Aug 14, 2001
Grant date	Mar 16, 2004
Priority date	—
Expiry date	Nov 22, 2021

Classification

Technology area (CPC G)Physics
CPC primaryG06F2212/253
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A processor memory system which includes:a processor component provided with a processor and at least a first integrated RAM memory,at least one second, external memory which is coupled to the processor component via an interface,a programmable memory management component which is integrated in the processor component and checks, in the case of a data address requested by the processor, whether this data address is stored in the first RAM memory which serves as a fast memory and in which data from the external memory has been loaded in advance,wherein the memory management component indicates the RAM memory address at which the data associated with the memory address is stored if the data is present in the RAM memory, the data then being read from the RAM memory, andwherein, if the data address is not present in the RAM memory, the memory management component outputs an interrupt instruction to the processor which subsequently initiates the loading of the searched data address from the external memory into the RAM memory.

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