Patent · US Active

Direct memory access descriptor

US10169271B1 · kind B1 · utility

2Cited by

6References

18Claims

0Family size

Assignee

XILINX, INC. · US

Inventors

Sagheer Ahmad · Cupertino, US
Nishit Patel · Salumbar, IN
James J. Murray · Mauldin, US

Key dates

Filing date	Oct 28, 2014
Grant date	Jan 1, 2019
Priority date	—
Expiry date	May 23, 2037

Classification

Technology area (CPC G)Physics
CPC primaryG06F12/1081
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

Methods and systems are disclosed for transferring data using descriptors to reference memory locations at which data is to be written to or read from. Each descriptor references a respective linked list of descriptor blocks. Each of the descriptor blocks includes a contiguous portion of the memory that stores a plurality of addresses, at which data is to be written to or read from. In response to receiving the data transfer request, a set of data is transferred from a first set of addresses specified in a first descriptor to a second set of addresses specified in a second descriptor by traversing the linked lists of descriptor blocks in the first and second descriptors.

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