Invention Grant
- Patent Title: Method apparatus for resuming and recovery checking from interrupted programming of one-time programmable memory device
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Application No.: US16529636Application Date: 2019-08-01
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Publication No.: US11099949B2Publication Date: 2021-08-24
- Inventor: Michael A Kost , Bradley A Lambert , John P Tourish , Girish Subramaniam
- Applicant: Cirrus Logic International Semiconductor Ltd.
- Applicant Address: GB Edinburgh
- Assignee: Cirrus Logic International Semiconductor Ltd.
- Current Assignee: Cirrus Logic International Semiconductor Ltd.
- Current Assignee Address: GB Edinburgh
- Agent E. Alan Davis; James W. Huffman
- Main IPC: G06F11/14
- IPC: G06F11/14 ; G11C17/18

Abstract:
A method and apparatus for programming a one-time programmable (OTP) memory device is disclosed that allows for resuming and recovering from an interrupted programming cycle (e.g. due to loss of power or user interaction). Upon re-initiation of a programming cycle with the same memory range, a programming controller may detect the memory address where interruption occurred, and resume programming from that address. If the programming interruption resulted in an incorrectly programmed word at the interrupted address, a word repair register may be mapped to the corrupted address to enable correction of that word. The remainder of the memory range may then be programmed normally.
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