Patent · US Active

Direct memory access (DMA) unit with error detection

US9417952B2 · kind B2 · utility

0Cited by

1References

20Claims

0Family size

Assignee

Freeescale Semiconductor, Inc. · US

Inventors

Tommi M. Jokinen · Austin, US
Nikhil Jain · San Diego, US
Stephen G. Kalthoff · Frisco, US

Key dates

Filing date	Dec 18, 2014
Grant date	Aug 16, 2016
Priority date	—
Expiry date	Feb 16, 2035

Classification

Technology area (CPC G)Physics
CPC primaryG06F13/4022
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

Systems and methods for self-checking a direct memory access system are disclosed. These may include generating a check sum value associated with a first job of the plurality of jobs, the first job comprising a read job; if a first predetermined check value is available, comparing the first check sum value with the first predetermined check value; generating a second check sum value associated with a last job of the plurality of jobs, the last job comprising a write job; if a second predetermined check value is available, comparing the second check sum value with the second predetermined check value; and if the second predetermined check value is not available, comparing the first check sum value with the second check sum value.

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