APPLICATION PROCESSOR, ELECTRONIC DEVICE HAVING THE SAME, AND METHOD OF OPERATING THE SAME

Abstract: an application processor is provided. the application processor includes: a phase locked loop circuit (pll); a sleep control logic circuit configured to control the pll to enter and exit a sleep mode; a wake-up generation logic circuit configured to provide a wake-up request signal to the sleep control logic circuit to control the pll to exit the sleep mode based on an early wake-up signal; an always-on video timer circuit configured to output a synchronization signal to a display driving chip in a sleep mode section and generate the early wake-up signal; a display video timer circuit configured to receive the synchronization signal from the always-on video timer and indicate the sleep control logic to provide an idle section; and clock switching logic circuit configured to alternately provide, as an operation clock of the sleep control logic, one of an always-on clock and a word clock.

Inventor(s): Junghak LEE, Jiyu PARK, Yon Jun SHIN, Sang Hoon LEE

CPC Classification: G09G5/003 ({Details of a display terminal, the details relating to the control arrangement of the display terminal and to the interfaces thereto (specific for a CRT ; for a flat panel )})

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