Architecture for address mapping of managed non-volatile memory

US8370603B2 · kind B2 · utility

Assignee

• Apple Inc. · US

Inventors

• Tahoma M. Toelkes · San Jose, US
• Nir Jacob Wakrat · Los Altos, US
• Kenneth Louis Herman · San Jose, US
• Barry Corlett · Brisbane, US
• Vadim Khmelnitsky · Foster City, US
• Anthony Fai · Palo Alto, US
• Daniel J. Post · Cupertino, US
• Hsiao-Han Thio · San Jose, US

Key dates

• Filing date: Nov 6, 2009
• Grant date: Feb 5, 2013
• Expiry date: Apr 20, 2031

Classification

• Technology area (CPC G): Physics
• CPC primary: G06F2212/7208
• WIPO field: Computer technology
• WIPO sector: Electrical engineering

Abstract

The disclosed architecture uses address mapping to map a block address on a host interface to an internal block address of a non-volatile memory (NVM) device. The block address is mapped to an internal chip select for selecting a Concurrently Addressable Unit (CAU) identified by the block address. The disclosed architecture supports generic NVM commands for read, write, erase and get status operations. The architecture also supports an extended command set for supporting read and write operations that leverage a multiple CAU architecture.