Method and apparatus for using cache memory in a system that supports a low power state
    9.
    发明授权
    Method and apparatus for using cache memory in a system that supports a low power state 有权
    在支持低功率状态的系统中使用高速缓冲存储器的方法和装置

    公开(公告)号:US08640005B2

    公开(公告)日:2014-01-28

    申请号:US12785182

    申请日:2010-05-21

    IPC分类号: G11C29/00

    CPC分类号: G06F11/1064

    摘要: A cache memory system uses multi-bit Error Correcting Code (ECC) with a low storage and complexity overhead. In an embodiment, error correction logic may include a first error correction logic to determine a number of errors in data that is stored in a cache line of a cache memory, and a second error correction logic to receive the data from the first error correction logic if the number of errors is determined to be greater than one and to perform error correction responsive to receipt of the data. The cache memory system can be operated at very low idle power, without dramatically increasing transition latency to and from an idle power state due to loss of state. Other embodiments are described and claimed.

    摘要翻译: 高速缓冲存储器系统使用具有低存储和复杂度开销的多位错误校正码(ECC)。 在一个实施例中,纠错逻辑可以包括:第一纠错逻辑,用于确定存储在高速缓存存储器的高速缓存行中的数据中的错误数;以及第二纠错逻辑,用于从第一纠错逻辑接收数据 如果错误的数量被确定为大于1,并且响应于数据的接收执行错误校正。 高速缓冲存储器系统可以在非常低的空闲功率下操作,而不会由于状态的损失而急剧增加到空闲功率状态的转换等待时间。 描述和要求保护其他实施例。