US 12,248,355 B2
System on chip for reducing wake-up time, method of operating same, and computer system including same
Hee Dong Shin, Seoul (KR)
Assigned to Samsung Electronics Co., Ltd., Gyeonggi-do (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Apr. 3, 2023, as Appl. No. 18/194,782.
Application 17/846,862 is a division of application No. 16/838,740, filed on Apr. 2, 2020, granted, now 11,372,472, issued on Jun. 28, 2022.
Application 18/194,782 is a continuation of application No. 17/846,862, filed on Jun. 22, 2022, granted, now 11,635,800.
Application 16/838,740 is a continuation of application No. 15/989,843, filed on May 25, 2018, granted, now 10,642,339, issued on May 5, 2020.
Application 15/989,843 is a continuation of application No. 15/228,342, filed on Aug. 4, 2016, granted, now 9,996,144, issued on Jun. 12, 2018.
Application 15/228,342 is a continuation of application No. 14/337,641, filed on Jul. 22, 2014, abandoned.
Claims priority of application No. 10-2013-0094442 (KR), filed on Aug. 8, 2013.
Prior Publication US 2023/0236654 A1, Jul. 27, 2023
Int. Cl. G06F 1/32 (2019.01); G06F 1/3287 (2019.01); G06F 9/44 (2018.01); G06F 9/4401 (2018.01); G06F 9/445 (2018.01); G06F 13/24 (2006.01); G11C 7/10 (2006.01); G11C 11/406 (2006.01)
CPC G06F 1/3287 (2013.01) [G06F 9/4401 (2013.01); G06F 9/4408 (2013.01); G06F 9/4418 (2013.01); G06F 13/24 (2013.01); G11C 7/1072 (2013.01); G11C 11/40615 (2013.01); Y02D 10/00 (2018.01)] 20 Claims
OG exemplary drawing
 
1. A computer system comprising:
an application processor including a read-only memory (ROM) configured to store a first boot loader, a first memory configured to store a second boot loader, and a second memory configured to store a third boot loader; and
a power management integrated circuit (PMIC) configured to supply first power only to the second memory during a power-down mode, and supply second power to both the first and second memories during a wake-up mode, and
wherein the application processor is configured to:
receive an interrupt signal during the power-down mode; and
perform a secure boot operation of the third boot loader based on the interrupt signal.