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Embedded system and control method thereof
A control method and embedded technology, applied in the direction of instrumentation, electrical digital data processing, etc., can solve the problems of important and sensitive setting time of different signals, increasing data ratio of serial flash memory, etc., and achieve the effect of increasing accuracy
Active Publication Date: 2010-11-10
MEDIATEK INC
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However, the data rate of serial flash memory is increasing day by day, making the setup time of different signals extremely critical and sensitive
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A embedded system and controlling method thereof, which apply to make up setup time violation, include a serial flash memory and a access circuit. The serial flash memory also includes a input pin and a output pin. The access circuit also includes a processor, a parallel to serial shift register, a serial flash memory controller and a time reparation device. The input pin receives a adjusted input signal, while the output pin export a output signal. The processor controls operation of the access circuit. The serial flash memory controller activates a operation clock signal of the access circuit. The time reparation device redeems time sequence of the output or input signal through referring to the operation clock signal. The parallel to serial shift register converts the data from parallel form to serial form. Through using the invention, sample time can be adjusted and accuracy can be increased.
Description
Embedded system and its control method technical field The present invention relates to an embedded system, and more particularly to an embedded system for compensating for SetupTimeViolation. Background technique Embedded systems typically include flash memory to store data and program codes, such as serial flash memory (Serialflash) or parallel flash memory (ParallelFlash). An embedded system requires multiple pins (address pins, data pins, and control pins) to access a parallel flash memory. Accessing serial flash memory requires fewer pins. However, the data rate of serial flash memory is increasing day by day, making the setup time of different signals extremely critical and sensitive. Contents of the invention The main object of the present invention is to provide an embedded system that can be used to compensate for setup time violations. The embedded system includes a series of flash memories and an access circuit. The serial flash memory also includes an in...
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IPC IPC(8): G06F13/38
CPCG06F13/4291
Inventor 赖明祥蔡忠宏
Owner MEDIATEK INC
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