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What is the purpose of the main clock oscillator in a micro-controller system?
Wiki User
∙ 11y ago
Many programs use wait functions to run, whether they check something every second or store the duration of an action. Other functions may need to run a pin high for a certain length of time. All of these require an accurate and consistent time keeping mechanism to run off of.
Remember, the microcontroller will not be connected to a computer while it is running, so it will not be able to access the computer's clock. It needs its own.
Wiki User
∙ 11y ago
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What and how a quartz clock mechanism works?
A quartz clock is a clock that uses an electronic oscillator that is regulated by a quartz crystal to keep time. This crystal oscillator creates a signal with very precise frequency, so that quartz clocks are at least an order of magnitude more accurate than good mechanical clocks. Generally, some form of digital logiccounts the cycles of this signal and provides anumeric time display, usually in units of hours,minutes, and seconds. Since the 1970s, they have become the most widely used timekeeping technology.
What is the pace of the system clock called?
The pace of the system clock, called the clock speed, is measured by the number of ticks per second. The faster the clock speed, the more instruction the processor can execute per second.
A bus that does not run in sync with the system clock is called a?
expansion bus
Which component controls the timing of all computer operations?
the system clock
Does a computer have a clock crystal?
Yes. In older systems, the clock crystal speed either provided the direct clock for the front side bus, and everything else ran on a divider, or was double the speed of the front side bus. Modern systems use a single fixed crystal at 14.318 MHz, and everything runs at either a multiple or divider of that clock. Some components, such as network cards may have their own crystal. Most add-on cards also have an oscillator crystal.
Why crystal oscillator used for microcontrollers?
Oscillators are connected externally with the microcontroller to provide high frequency signal to the oscillator circuit in the microcontroller. The oscillator circuit provides the clock signal to the micro controller. Usually "PIEZO CRYSTAL OSCILLATORS" are used in micro controllers.
What is the purpose of an oscillator crystal?
"A circuit within a computer that creates a series of pulses that pace the computer's electronic system. The oscillator clock synchronizes, paces and coordinates the operations of the computer's circuit." -- webopedia
What is a pulse rate of a clock measured in?
frequency of an oscillator crystal
What is the Maximum clock frequency of 8086 microprocessor?
that depends on the microcontroller. check the datasheet.
What is a purpose of time card clock?
The purpose of a time card clock is to accurately know hourly employee's time in the office. This system is being replaced by employees clocking in on the computer.
Do 8086 have in built clock?
The 8086/8088 has a clock oscillator circuit. You provide a crystal, and it will generate a clock signal that controls the speed of the processor. In that respect, it has a clock.The 8086/8088, however, does not have a time of day or date clock. You can build a software entity that keeps day/date time using interrupts from a divider off of the clock oscillator but, that is not the same thing as a non-volatile clock chip such as provided in the PC, but which is not part of the 8086/8088.
What is pipelining in pic microcontroller?
In PIC Microcontroller , During the Fatching of instruction no. 1it needs of one clock cycle, then after for the exicution of instruction no. 1 it reqires one extra clock cycle , but at the same time it fatches inst. no. 2 . Similarly, during the execution time of inst. no. 2 , it fatches inst. no. 3 and so on.In other words we can say that, PIC Microcontroller requires 2 clock cycle at starting the after it requires only one clock pulse. In this way we can say that instruction pipelining is done in PIC microcontroller.
What is avr microcontroller?
it is a programmable logic device which has a inbuilt memory, clock etc and is required to perform a specific task.
What regulates the cpu machine cycle?
the clock oscillator and machine cycle state machine, it may take multiple clock cycles per machine cycle.
What reason an oscillator may be used to keep time is the?
If you divide the number of oscillations since you synchronized your clock (with an external source) by the frequency of the oscillator, you will get the number of seconds that have passed since you performed the synchronization...
What is clock plus in microcontroller?
a clock signal is a particular type of signal that oscillates between a high and a low state.The term is here used for "transmitted energy that can carry information".
What is the purpose of mechanical clock?
The purpose of all clocks (e.g. mechanical clock, water clock, electronic clock, atomic clock) is to measure the passage of time.
