一种装置包括检查/校正电路和控制电路。检查/校正电路接收数据块和对应的校验位，数据块以N次传输接收，每次包含M数据位和L校验位。电路能检测M数据位中多个不重叠窗口的错误，并记录有错误的窗口。如果某一窗口在所有N次传输中都检测到错误，控制电路将发出设备故障信号。K、L、M和N都是大于一的整数。
摘要：
In one embodiment, an apparatus includes a check/correct circuit coupled to a control circuit. The check/correct circuit is coupled to receive a block of data and corresponding check bits. The block of data is received as N transmissions, each transmission including M data bits and L check bits. The check/correct circuit is configured to detect one or more errors in each of a plurality of non-overlapping windows of K bits in the M data bits, responsive to the M data bits and the L check bits. The control circuit is configured to record which of the plurality of windows have had errors detected and, if a given window of the plurality of windows has had errors detected in each of the N transmissions of the block, the control circuit is configured to signal a device failure. Each of K, L, M, and N are integers greater than one.
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