Invention Grant
- Patent Title: Detection and correction of fuse re-growth in a microprocessor
- Patent Title (中): 微处理器中保险丝再生长的检测和校正
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Application No.: US12609207Application Date: 2009-10-30
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Publication No.: US08234543B2Publication Date: 2012-07-31
- Inventor: G. Glenn Henry , Charles John Holthaus , Terry Parks
- Applicant: G. Glenn Henry , Charles John Holthaus , Terry Parks
- Applicant Address: TW New Taipei
- Assignee: VIA Technologies, Inc.
- Current Assignee: VIA Technologies, Inc.
- Current Assignee Address: TW New Taipei
- Agent E. Alan Davis; James W. Huffman
- Main IPC: G06F11/00
- IPC: G06F11/00

Abstract:
A microprocessor includes control hardware that receives and stores control values and provides the control values to circuits of the microprocessor for controlling operation of the microprocessor. The microprocessor also includes a first plurality of fuses selectively blown collectively with a predetermined value, and a second plurality of fuses selectively blown collectively with an error correction value computed from the predetermined value collectively blown into the first plurality of fuses. In response to being reset, the microprocessor reads the first and second plurality of fuses, detects an error in the value read from the first plurality of fuses using the value read from the second plurality of fuses, corrects the value read from the first plurality of fuses back to the predetermined value using the value read from the second plurality of fuses, and uses the corrected predetermined value to write the control values into the control hardware.
Public/Granted literature
- US20100229062A1 DETECTION AND CORRECTION OF FUSE RE-GROWTH IN A MICROPROCESSOR Public/Granted day:2010-09-09
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