公开(公告)号：US11960351B1

公开(公告)日：2024-04-16

申请号：US17897334

申请日：2022-08-29

Applicant: Cadence Design Systems, Inc.

Inventor： Dipakkumar Trikamlal Modi ,  Bikram Banerjee ,  Maddula Balakrishna Chaitanya

IPC: G06F11/07 ,  G06F11/00 ,  G06F11/30 ,  H03M13/00 ,  H03M13/11

CPC classification number: G06F11/0772 ,  G06F11/004 ,  G06F11/3068 ,  H03M13/1131 ,  H03M13/611

Abstract: Systems and methods for propagating poison information are provided. Embodiments include receiving write data having a poison flag asserted indicating the data to be written to a memory device is erroneous. Embodiments further include converting the write data to a pre-fixed data pattern and generating a parity code, based upon, at least in part, the pre-fixed data pattern. Embodiments may also include injecting a correctable error into the write-data or parity code and writing the write data and parity code into the memory device. The correctable error injection may occur in the data or in the parity code and during the read the comparison may occur accordingly.