US 2021/0233593 A1 · DYNAMIC DELAY OF NAND READ COMMANDS

Abstract

Disclosed in some examples are methods, systems, memory devices, and machine-readable mediums which increase read throughput by introducing a delay prior to issuing a command to increase the chances that read commands can be executed in parallel. Upon receipt of a read command, if there are no other read commands in the command queue for a given portion (e.g., plane or plane group) of the die, the controller can delay issuing the read command for a delay period using a timer. If, during the delay period, an eligible read command is received, the delayed command and the newly received command are both issued in parallel using a multi-plane read. If no eligible read command is received during the delay period, the read command is issued after the delay period expires.

Claims20

Dependent claims

A method for reading non-volatile memory of a memory device, the method comprising:

using a processor of the memory device, performing operations comprising:
receiving a first read command for a first portion of a die of the memory device;
determining whether a multiplane read compatible read request is queued in a command queue of the memory device;
responsive to a determination that the command queue does not contain the multiplane read compatible read request, queueing the first read command and starting a timer;
receiving, prior to expiry of the timer, a second read command, the second read command a multiplane read compatible read request for a second portion of the die of the memory device;
and
responsive to receiving the second read command, causing execution of the first read command and the second read command in parallel.

4 more elements

Dependencies are inferred from the claim text.

Dynamic delay of nand read commands

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Dynamic delay of nand read commands

Life of this patent

Abstract

Claims20