Patent ID: 11960351
Assignee: CADENCE DESIGN SYSTEMS, INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 6:
7. A method of propagating poison information comprising:
receiving write data having a poison flag asserted indicating the data to be written to a memory device is erroneous;
converting the write data to a data pattern;
generating a parity code, based upon, at least in part, the data pattern;
injecting a correctable error into converted write data or parity code;
writing the converted write data and parity code into the memory device; and
attempting to read data from the memory device, wherein attempting to read data from the memory device includes comparing the read data and parity code with a new known data pattern and parity code before and after any erroneous parity correction.