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Voltage variable processing method of microcontroller

A technology of micro-controller and voltage change, applied in the direction of adjusting electric variables, data processing power supply, control/regulation system, etc., can solve the problems of losing circuit reliability, increasing circuit complexity, increasing production cost, etc.

Inactive Publication Date: 2008-05-28
SITRONIX TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the solution of adding circuit components will increase the complexity of the circuit for users of microcontrollers, which will not only lose the reliability of the circuit, but also increase the production cost virtually.

Method used

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  • Voltage variable processing method of microcontroller
  • Voltage variable processing method of microcontroller
  • Voltage variable processing method of microcontroller

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Embodiment Construction

[0020] Relevant detailed content and technical description of the present invention, now in conjunction with accompanying drawing, explain as follows:

[0021] Please refer to FIG. 3 , which is a schematic diagram of the processing method of the microcontroller for the low voltage of the present invention. As shown in the figure, the present invention is a method for processing voltage changes of a microcontroller. For the program counter 35, memory 31, instruction register 32 and instruction decoder 33 that operate sequentially in the microcontroller system, such as a general microcontroller The operation described by the register, the instruction signal is first fetched from the memory 31, stored in the instruction register 32 for latching, and then the instruction signal is compiled and executed by the instruction decoder 33, and then the control signal is issued. And the system voltage will be connected to a low voltage detector 34, and the signal of the low voltage detect...

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Abstract

A method for handling voltage variation of micro controller includes connecting signal of low voltage detector / voltage monitor to counter, storage and command register of program to let micro controller be at frozen state when low voltage detector / voltage monitor is acted and carrying out must operation of next program counting till system voltage is stabilized.

Description

technical field [0001] The invention relates to a method for processing voltage changes of a microcontroller, in particular to a method for processing a microcontroller aimed at system voltage changes. Background technique [0002] There are many types of microcontrollers, including embedded, single-chip, RISC, 8bit, 16bit, surface mount, flat, etc. [0003] From consumer products to communication products, microcontrollers are widely used. The current microcontrollers can not only complete tasks with high computational load, but also have low cost, so the application of the products is very successful. Microcontrollers are very good at sequential processing and various non-real-time tasks. The typical working speed is about 20MHz, but some microcontroller cores need to divide the clock frequency internally, and each instruction uses multiple clock cycles. . For example, CISC microcontrollers use up to 25 simplified instructions to execute a single multiply instruction. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F1/26G06F1/28G06F1/30G06F15/78G05F1/10
Inventor 黄清火
Owner SITRONIX TECH CORP
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