Method and system for in-line ECC protection

    公开(公告)号:US11119909B2

    公开(公告)日:2021-09-14

    申请号:US16590515

    申请日:2019-10-02

    Abstract: A memory system having an interconnect configured to receive commands from a system to read data from and/or write data to a memory device. The memory system also has a bridge configured to receive the commands from the interconnect, to manage ECC data and to perform address translation between system addresses and physical memory device addresses by calculating a first ECC memory address for a first ECC data block that is after and adjacent to a first data block having a first data address, calculating a second ECC memory address that is after and adjacent to the first ECC block, and calculating a second data address that is after and adjacent to the second ECC block. The bridge may also check and calculate ECC data for a complete burst of data, and/or cache ECC data for a complete burst of data that includes read and/or write data.

    ECC protected storage
    12.
    发明授权

    公开(公告)号:US10853170B2

    公开(公告)日:2020-12-01

    申请号:US16122939

    申请日:2018-09-06

    Abstract: A data storage circuit includes memory, an error correcting code (ECC) storage circuit, and control circuitry. The memory is configured to store a data value comprising a plurality of fields. Each of the fields is independently writable. The ECC storage circuit is configured to store an ECC value corresponding to the data value. The control circuitry is configured to receive a field value to be written into one of the fields, and store the field value in the one of the fields by writing only the field value to the memory. The control circuitry is also configured to retrieve the ECC value from the ECC storage circuit, compute an updated ECC value based on the ECC value retrieved from the ECC storage circuit and the field value, and store the updated ECC value in the ECC storage circuit.

    Fault tolerant synchronizer
    13.
    发明授权

    公开(公告)号:US12222390B2

    公开(公告)日:2025-02-11

    申请号:US18457537

    申请日:2023-08-29

    Abstract: A synchronization circuit includes a first synchronizer having a first data input, a first clock input, and first output; a second synchronizer having a second data input, a second clock input, and a second output; selection circuitry having first, second, third and fourth inputs, and a synchronized data output, the first and second inputs coupled to the first and second outputs, respectively; and storage circuitry having a storage data input coupled to the synchronized data output, a third clock input, and a feedback output coupled to the fourth input.

    Method and system for in-line ECC protection

    公开(公告)号:US12204443B2

    公开(公告)日:2025-01-21

    申请号:US18449025

    申请日:2023-08-14

    Abstract: A memory system having an interconnect configured to receive commands from a system to read data from and/or write data to a memory device. The memory system also has a bridge configured to receive the commands from the interconnect, to manage ECC data and to perform address translation between system addresses and physical memory device addresses by calculating a first ECC memory address for a first ECC data block that is after and adjacent to a first data block having a first data address, calculating a second ECC memory address that is after and adjacent to the first ECC block, and calculating a second data address that is after and adjacent to the second ECC block. The bridge may also check and calculate ECC data for a complete burst of data, and/or cache ECC data for a complete burst of data that includes read and/or write data.

    Testing of fault detection circuit
    17.
    发明授权

    公开(公告)号:US11094392B2

    公开(公告)日:2021-08-17

    申请号:US16601303

    申请日:2019-10-14

    Abstract: A system-on-chip includes first and second devices. An interconnect segment couples between the first and second devices. A bridge is coupled between the first and second devices and coupled to the interconnect segment. At least one of the bridge or interconnect segment include first and second multiplexers, a monitor circuit, and exclusive-OR logic. The first multiplexer has first and second multiplexer inputs and a first multiplexer output. The second multiplexer has third and fourth multiplexer inputs and a second multiplexer output. The monitor circuit has a first and second monitor circuit outputs. The first monitor circuit output is coupled to the second multiplexer input and the second monitor circuit output is coupled to the fourth multiplexer input. The exclusive-OR logic has first and second exclusive-OR logic inputs. The first exclusive-OR logic input couples to the first multiplexer output and the second exclusive-OR logic input couples to the second multiplexer output.

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