US 12,073,916 B2
Back-up and restoration of register data
Yu-Der Chih, Hsinchu (TW)
Assigned to Taiwan Semiconductor Manufacturing Company, Ltd., Hsinchu (TW)
Filed by Taiwan Semiconductor Manufacturing Company, Ltd., Hsinchu (TW)
Filed on Apr. 24, 2023, as Appl. No. 18/138,305.
Application 18/138,305 is a continuation of application No. 17/587,610, filed on Jan. 28, 2022, granted, now 11,636,884.
Application 17/587,610 is a continuation of application No. 17/010,058, filed on Sep. 2, 2020, granted, now 11,295,792, issued on Apr. 5, 2022.
Claims priority of provisional application 62/908,016, filed on Sep. 30, 2019.
Prior Publication US 2023/0260559 A1, Aug. 17, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G06F 11/00 (2006.01); G06F 1/30 (2006.01); G06F 11/14 (2006.01); G06F 11/30 (2006.01); G11C 5/14 (2006.01); G11C 7/20 (2006.01); G11C 11/4072 (2006.01)
CPC G11C 7/20 (2013.01) [G06F 1/30 (2013.01); G06F 11/1469 (2013.01); G06F 11/3037 (2013.01); G06F 11/3058 (2013.01); G11C 5/148 (2013.01); G11C 11/4072 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system to back-up a register word stored by a register, the system comprising:
a non-volatile memory having a plurality of cells, each cell corresponding to one of a plurality of words of the register;
a controller, wherein in response to a loss in power, the controller is configured to:
change an initial reset value of the cell of the non-volatile memory corresponding to the register word stored by the register to a set value.