Samsung Electronics Co., Ltd.

Seok-Ju Yoon

Nak-woo Sung

Jae-Joon Yoo

Seung-Chull Suh

Eun-Ok Jo

Taek-Ki Kim

Jong-Lae Park

Lak-Kyung Jung

Young-Tae Lee

A method of operating an application processor including a central processing unit (CPU) with at least one core and a memory interface includes measuring, during a first period, a core active cycle of a period in which the at least one core performs an operation to execute instructions and a core idle cycle of a period in which the at least one core is in an idle state, generating information about a memory access stall cycle of a period in which the at least one core accesses the memory interface in the core active cycle, correcting the core active cycle using the information about the memory access stall cycle to calculate a load on the at least one core using the corrected core active cycle, and performing a DVFS operation on the at least one core using the calculated load on the at least one core.

Application processor performing a dynamic voltage and frequency scaling operation, computing system including the same, and operation method thereof

A method of operating a system-on-chip (SOC) including a central processing unit (CPU) and a target hardware to which a dynamic voltage and frequency scaling (DVFS) is applied, includes determining an operating scheme of the target hardware, setting a DVFS application scheme for applying the DVFS to the target hardware, based on the operating scheme of the target hardware, and performing the DVFS on the target hardware, based on the DVFS application scheme.

Method of operating system-on-chip, system-on-chip performing the same and electronic system including the same

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Yongin-si, South Korea

Seok-Ju Yoon