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Method and apparatus for indicating uncorrectable data errors

  • US 5,953,351 A
  • Filed: 09/15/1995
  • Issued: 09/14/1999
  • Est. Priority Date: 09/15/1995
  • Status: Expired due to Fees
First Claim
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1. A method for indicating to a processor that data having an uncorrectable error is to be received, the method comprising the steps of:

  • a) when a data transfer request is received by a memory unit, performing a storage error detection process on a data block of the memory unit, wherein the data transfer request identifies the data block;

    b) when the storage error detection process indicates an uncorrectable error, performing an error coding process to produce transmit check bits which indicate that the data block includes the uncorrectable error;

    c) routing the data and the transmit check bits from the memory unit to the processor; and

    d) when the data and the transmit check bits are received, performing an error decode process based on the transmit check bits to determine that the data includes the uncorrectable error, such that the data having the uncorrectable error is identified.

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