Method and apparatus for selecting transfer types

US7062609B1 · kind B1 · utility

Assignee

• Cisco Technology, Inc. · US

Inventors

• Eric M. Trehus · San Jose, US
• Kuan-Yuh Ko · San Jose, US

Key dates

• Filing date: Sep 19, 2001
• Grant date: Jun 13, 2006
• Expiry date: Jun 10, 2023

Classification

• Technology area (CPC G): Physics
• CPC primary: G06F12/0837
• WIPO field: Computer technology
• WIPO sector: Electrical engineering

Abstract

A transfer type selector selects a transfer type used for maintaining cache coherency according to address values used for accessing memory and is programmable so that different transfer types can be selected for different applications. In one embodiment, a table has different address ranges each having associated transfer types. Transfer type selection logic selects one of the transfer types associated with the address range containing the address in a memory transaction request.