Patent · US Active

Method and system for locking OTP memory bits after programming

US8032727B2 · kind B2 · utility

9Cited by

10References

30Claims

0Family size

Assignee

Broadcom Corporation · US

Inventors

Robert Brownhill · Cranberry, US
Iue-Shuenn Chen · San Diego, US
Tony Turner · Lake Forest, US

Key dates

Filing date	Dec 22, 2004
Grant date	Oct 4, 2011
Priority date	—
Expiry date	Jun 24, 2029

Classification

Technology area (CPC G)Physics
CPC primaryG06F12/1425
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

Methods and systems for processing multi-stage programming (MSP) bits within one-time-programmable (OTP) memory are disclosed herein. Aspects of the method may comprise determining whether at least one MSP memory bit in the OTP memory is programmed and whether a register bit associated with said at least one MSP memory bit is asserted. If the register bit is deasserted and the MSP memory bit is unprogrammed, the MSP memory bit may be programmed. The register bit in the OTP memory may be associated with the MSP memory bit. The MSP memory bit may be programmed to logic zero or logic one. If the register bit associated with the MSP memory bit is asserted, programming of the MSP memory bit may be blocked. The register bit associated with the MSP memory bit may be reset and it may be determined whether the MSP memory bit is accessed.

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