公开(公告)号：US10218384B2

公开(公告)日：2019-02-26

申请号：US15366859

申请日：2016-12-01

Applicant: SANDISK TECHNOLOGIES LLC

Inventor： Eran Sharon ,  Idan Goldenberg ,  Ishai Ilani ,  Idan Alrod ,  Yuri Ryabinin ,  Yan Dumchin ,  Mark Fiterman ,  Ran Zamir

IPC: G06F11/10 ,  G06F3/06 ,  H03M13/11 ,  H03M13/17 ,  H03M13/37

Abstract: A device includes a low density parity check (LDPC) decoder that configured to receive a representation of a codeword. The LDPC decoder includes a message memory configured to store decoding messages, multiple data processing units (DPUs), a control circuit, and a reording circuit. The control circuit is configured to enable a first number of the DPUs to decode the representation of the codeword in response to a decoding mode indicator indicating a first decoding mode and to enable a second number of the DPUs to decode the representation of the codeword in response to the decoding mode indicator indicating a second decoding mode. The reordering circuit is configured to selectively reorder at least one of the decoding messages based on the decoding mode indicator.