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Registers are a special type of memory that are dedicated to micro-controllers (or CPUs). Controllers have register-memory for speed.
The slowest part of any computer is the bus. The bus is the wiring that connects different components. In this case the micro-controller and main memory. While main memory and the micro-controller are both very fast, the wiring between them is slow.
Should the micro-controller have to be slow to compensate for the slow wiring?
The solution is to have register-memory. Memory physically part of the micro-controller that allows the controller to use it instantly. The controller can then move data from a register to RAM as soon as the bus is available.
Register-memory comes from the concept of a Cash Register [1879]. A cash register is used to perform transactions and store money on it's way to a vault the same way a CPU or micro-controller stores data on its way to main memory.
What else can I help you with?
How micro controller differs from micro processor?
micro controller contain system on chip memory, timers,counters where as a micro processor doesn't contain all these
How we measures strain using microcontroller?
Measuring strain using micro-controller is simple and easy. When measuring using micro-controller you use points and condensers.
Is it possible to program micro controller by using c?
yes
How do you dump any program code on micro controller 89c51?
In order to dump any program code onto a micro controller for a 89c51, you would first have to find access to the main controller board of the item, and plug the program code directly into that.
Why you are using DSP controllers in motor?
Any controller used in motors or electrical drives are only to get variable speed or variable torque or to get higher efficiency. The controller can be anything, it might be micro controller or it can be DSP controller or may be other. But DSP controller finds some advantages over micro controller. Both the controllers are Digital controllers only, but DSP controller has inbuilt Analog to Digital converter, inbuilt Digital to analog converter , inbuilt counter and inbuilt pulse generator. With a micro controller we need to assemble all the above converters, counters and pulse generators externally, so DSP based electrical drives are more popular though the cost is more compared to micro controllers.
Who introduced the micro controller?
Dr. Glassenhigmer invented the micro controller
Difference between avr micro controller and 8051 micro controller?
constructed on a single chip is called micro processor constructed on a single board is called micro controller
Is a micro-controller hardware?
Yes, a micro-controller is hardware. It is the hardware that the firmware and/or software.
What is the main difference between micro controller and fpga?
micro controller is software and fpga is hardware
How micro controller differs from micro processor?
micro controller contain system on chip memory, timers,counters where as a micro processor doesn't contain all these
What type of micro controller is AT89S52?
Its an I\O controller
What do you mean by on-chip memory in micro controller?
It is integrated with Processor itself. Also called Cache Memory.
Is microprocessor is a micro-controller?
no. opposite
What is mean by can protocol?
CAN(Controller Area Network) is standard designed to allow micro-controller and devices to communicate with each other within a vehicle without a host computer
How data encrypt and decrypt from PC to PC using micro controller?
How data encrypt and decrypt from PC to PC using micro controller?
Give difference between micro controller and micro processor in terms of architecture?
no answer
What do you mean by data path architecture?
It is the structure that must be maintained in the processor which helps the data to be routed over different registers to perform low level activities (RTL activities). Typically data paths are set by data path controller which generally creates micro word that in turn contains the data path.
