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NAND flash memory storage system with efficient soft information interface

A technology of flash memory storage and soft information, which is applied in static memory, error detection coding and coding using multiple parity bits, and can solve the problem that no soft information is sent to the controller, etc.

Active Publication Date: 2019-04-19
MARVELL ASIA PTE LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In many prior art systems, elements 210 and 212 are absent and no soft information is sent to the controller

Method used

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  • NAND flash memory storage system with efficient soft information interface
  • NAND flash memory storage system with efficient soft information interface
  • NAND flash memory storage system with efficient soft information interface

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0026] exist Figure 4 Here, flash storage system 300 includes flash memory system 304 and host 108. For example, flash memory system 304 may include or be part of an SSD (hard drive) and / or hybrid hard disk cache. The host 108 may be a general-purpose processor, a bus controller, a RAID (Redundant Array of Inexpensive Disks) controller, and the like. Flash memory system 304 and host 108 communicate using a host interface. For example only, the host interface may be PCI (Peripheral Component Interconnect), PCIe (PCI Express), SCSI (Small Computer System Interface), SAS (Serial Attached SCSI), or SATA (Serial Advanced Technology Attachment).

[0027] Flash memory system 304 includes flash memory device 312 and controller 316 . Flash memory device 312 and controller 316 communicate using a flash memory interface. The flash memory interface may be standardized so that flash memory devices 312 and controller 316 can be obtained from different manufacturers and still interoperat...

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PUM

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Abstract

A controller for a nonvolatile memory device includes a transfer control module and a decoder module. The transfer control module is configured to request a read of data from a flash memory module. The data to be read includes data corresponding to a first codeword. The transfer control module is configured to receive hard decisions corresponding to the first codeword from the flash memory module. The transfer control module is configured to receive soft information corresponding to the first codeword from the flash memory module. Both the hard decisions corresponding to the first codeword and the soft information corresponding to the first codeword are received without receiving any intervening hard decisions or soft information corresponding to another codeword. The decoder module is configured to decode the first codeword using the hard decisions and the soft information corresponding to the first codeword.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of US Provisional Application No. 61 / 824,822, filed May 17, 2013. The entire disclosures of the applications cited above are hereby incorporated by reference. technical field [0003] The present disclosure relates to non-volatile memory and, more particularly, to a data transfer interface in a controller / flash interface. Background technique [0004] The background description provided herein is for the purpose of generally presenting the context of the disclosure. Neither express nor implied are aspects of the present inventor's work (to the extent that work is described in this background section) and descriptions that could not otherwise be identified as prior art at the time of filing are admitted to be prior art with respect to this disclosure. [0005] exist figure 1 In the system 100 includes a flash memory system 104 in communication with a host 108 . The flash memory...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03M13/11H03M13/37
CPCH03M13/1111G06F11/1012G06F11/1048G06F11/1068G11C29/52H03M13/1105H03M13/1108H03M13/2927H03M13/2957H03M13/2975H03M13/3707H03M13/3738H03M13/3746H03M13/3927H03M13/41H03M13/45H03M13/458H03M13/6513
Inventor S·K·奇尔拉帕加瑞G·伯德
Owner MARVELL ASIA PTE LTD