公开(公告)号：US20200019227A1

公开(公告)日：2020-01-16

申请号：US16583141

申请日：2019-09-25

Applicant: MICRON TECHNOLOGY, INC.

Inventor： Rajesh Sundaram ,  William Low ,  Sowmiya Jayachandran

IPC: G06F1/3206 ,  G06F13/42 ,  G06F1/3287 ,  G06F1/3234

Abstract: According to one embodiment, an apparatus is disclosed. The apparatus includes a memory device having a device identification, The apparatus further includes a low power wake circuit configured to receive a low power wake signal and an identification information, and further configured to initiate a transition of the memory device from a low power state to an active state responsive to an active low power wake signal and the wake identification information matching the device identifier.

公开(公告)号：US10289597B2

公开(公告)日：2019-05-14

申请号：US15975637

申请日：2018-05-09

Applicant: Micron Technology, Inc.

Inventor： Doyle Rivers ,  Paul D. Ruby ,  Anand S. Ramalingam ,  Rajesh Sundaram ,  Julie M. Walker

IPC: G06F13/14 ,  G06F13/42 ,  G06F13/38

Abstract: Several systems and methods of chip select are described. In one such method, a device maintains two identifiers, (ID_a and ID_m). When the device receives a command, it examines the values of ID_a and ID_m relative to a third reference identifier (ID_s). If either ID_a or ID_m is equivalent to ID_s, the device executes the command, otherwise, the device ignores the command. By using two different identification methods, a system has options in choosing to activate devices, being able to selectively switch between selecting multiple devices and single devices in a quick manner. In another such method, a device may have a persistent area that stores identification information such as an ID_a. Thus, system functionality may remain independent from any defect/marginality associated with the physical or logical components required for initial ID_a assignment of all devices in the system.

公开(公告)号：US20180329854A1

公开(公告)日：2018-11-15

申请号：US15975637

申请日：2018-05-09

Applicant: Micron Technology, Inc.

Inventor： Doyle Rivers ,  Paul D. Ruby ,  Anand S. Ramalingam ,  Rajesh Sundaram ,  Julie M. Walker

IPC: G06F13/42 ,  G06F13/14 ,  G06F13/38

CPC classification number: G06F13/4247 ,  G06F13/14 ,  G06F13/385

Abstract: Several systems and methods of chip select are described. In one such method, a device maintains two identifiers, (ID_a and ID_m). When the device receives a command, it examines the values of ID_a and ID_m relative to a third reference identifier (ID_s). If either ID_a or ID_m is equivalent to ID_s, the device executes the command, otherwise, the device ignores the command. By using two different identification methods, a system has options in choosing to activate devices, being able to selectively switch between selecting multiple devices and single devices in a quick manner. In another such method, a device may have a persistent area that stores identification information such as an ID_a. Thus, system functionality may remain independent from any defect/marginality associated with the physical or logical components required for initial ID_a assignment of all devices in the system.

公开(公告)号：US09778723B2

公开(公告)日：2017-10-03

申请号：US14980592

申请日：2015-12-28

Applicant: MICRON TECHNOLOGY, INC.

Inventor： Rajesh Sundaram ,  William Low ,  Sowmiya Jayachandran

IPC: G06F1/32 ,  G06F13/42

CPC classification number: G06F1/3206 ,  G06F1/3275 ,  G06F1/3287 ,  G06F13/4234

Abstract: According to one embodiment, an apparatus is disclosed. The apparatus includes a memory device having a device identification, The apparatus further includes a low power wake circuit configured to receive a low power wake signal and an identification information, and further configured to initiate a transition of the memory device from a low power state to an active state responsive to an active low power wake signal and the wake identification information matching the device identifier.