INTEGRATED CIRCUIT DEVICE INCLUDING WAKE-UP CONTROL CIRCUIT AND ELECTRONIC DEVICE INCLUDING THE SAME
First Claim
Patent Images
1. An integrated circuit device comprising:
- a central processing unit (CPU) configured to operate in one of a plurality of modes; and
a wake-up control circuit configured to control the CPU, the wake-up control circuit comprising;
a clock generator configured to generate an internal clock signal,a multiplexer configured to select a signal from among an external signal and the internal clock signal and to provide the CPU with the selected signal as an operating clock signal, anda controller configured to control the CPU and the clock generator based on the external signal.
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Abstract
An integrated circuit device is provided. The integrated circuit device may include a central processing unit (CPU) configured to operate in one of a plurality of modes and a wake-up control circuit configured to control the CPU. The wake-up control circuit may include a clock generator configured to generate an internal clock signal, a multiplexer configured to select a signal from among an external signal and the internal clock signal and to provide the CPU with the selected signal as an operating clock signal, and a controller configured to control the CPU and the clock generator based on the external signal.
7 Citations
21 Claims
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1. An integrated circuit device comprising:
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a central processing unit (CPU) configured to operate in one of a plurality of modes; and a wake-up control circuit configured to control the CPU, the wake-up control circuit comprising; a clock generator configured to generate an internal clock signal, a multiplexer configured to select a signal from among an external signal and the internal clock signal and to provide the CPU with the selected signal as an operating clock signal, and a controller configured to control the CPU and the clock generator based on the external signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An electronic system comprising:
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an electronic device; and at least one integrated circuit device connected to the electronic device through an inter integrated circuit (I2C) interface, the at least one integrated circuit device comprising; a central processing unit (CPU) configured to operate in one of a plurality of modes, a clock generator configured to generate an internal clock signal, a controller configured to control the CPU and the clock generator by receiving serial data and a serial clock signal, and a multiplexer configured to select one of the serial clock signal and the internal clock signal and to provide the CPU with the selected signal as an operating clock signal, wherein the controller is configured to compare an identification (ID) received from the electronic device with an address of the at least one integrated circuit device. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21-30. -30. (canceled)
Specification