Invention Grant
- Patent Title: Techniques for data scrambling on a memory interface
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Application No.: US18070006Application Date: 2022-11-28
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Publication No.: US12298845B2Publication Date: 2025-05-13
- Inventor: Gautam Bhatia
- Applicant: NVIDIA CORPORATION
- Applicant Address: US CA Santa Clara
- Assignee: NVIDIA CORPORATION
- Current Assignee: NVIDIA CORPORATION
- Current Assignee Address: US CA Santa Clara
- Agency: Squire Patton Boggs LLP
- Agent Sarah Mirza
- Main IPC: G06F11/10
- IPC: G06F11/10 ; G06F11/07

Abstract:
Various embodiments include a memory device that recovers from write errors and read errors more quickly relative to prior memory devices. Certain patterns of write data and read data may result on poor signal quality on the memory interface between memory controllers and memory devices. The disclosed memory device, synchronously with the memory controller, scrambles read data before transmitting the data to the memory controller and descrambles received from the memory controller. The scrambling and descrambling results in a different pattern on the memory interface even for the same read data or write data. Therefore, when a write operation or a read operation fails, and the operation is replayed, the pattern transmitted on the memory interface is different when the operation is replayed. As a result, the memory device more easily recovers from data patterns that cause poor signal quality on the memory interface.
Public/Granted literature
- US20230195561A1 TECHNIQUES FOR DATA SCRAMBLING ON A MEMORY INTERFACE Public/Granted day:2023-06-22
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