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Is any memory integrated with the processor 8051?
ANSWER The Intel 8051 had integrated RAM, ROM, and various I/O functions. This is typical of microcontrollers. I forget the amounts, probably 4 kB of ROM and 64 bytes of RAM? Newer 8051-compatible microcontrollers have a wide variety of memory and integrated I/O options. (Useless information: the 8051 used 12 oscillator cycles per machine instruction cycle, due to the synchronous way it decoded the instructions, fetched the operands, and stored the results. Newer versions get semi-asynchronous and run the same operands in 4, 3, or even 1 cycle.)
What is fully static operation in microcontroller?
Fully Static Operation in any microcontroller is, u can hold ur controller by stopping the clock and It doesnt affects ur stored content in registers or RAM.Again the controller can be resumed by allowing the clock.this static operation is possible only as long as controller is provided with the power.
Why is the speed of the CPU dependent on the RAM?
In certain applications, the overall speed may be dependent on the RAM. If you have a fast CPU but very little RAM then your performance will be slowed.
How many transistors are used in static ram?
I am not to sure about Static Ram but in CMOS RAM, 1GB of RAM would contain about 137438953472 transistors because 1 bit of CMOS RAM contains 16 Transistors, 8 bits in a byte and 1073741824 bytes in a gigabyte. I am 100% sure about this and these are just estimations. Static RAM uses about 6 times as many transistors as dynamic RAM for the same amount of storage. Dynamic RAM uses 1 or 2 transistors per bit in typical implementations. Add to this transistors for address decode, bus interface, etc.
What is the maximum size of RAM available in market?
24 gb ram is available in the market muthu ans.2 it can't be answered definitely as everyday technology gives us a better option , so it produces a better size of RAM everyday .
What is a 8051 Micro-controller?
An 8051 microcontroller is a popular 8-bit microcontroller that was first introduced by Intel in 1980. It is widely used in embedded systems due to its simple architecture, low cost, and ease of use. The 8051 microcontroller typically includes CPU, RAM, ROM, I/O ports, timers, and serial communication interfaces on a single chip.
Can you write a ram controller program in c?
Conceptually, you could indeed write a RAM controller in C. The purpose of C was to allow higher level constructs while still offering access to the underlying controller.
Explain about pin diagram of 8051 micro controller?
The microcontrollers have an 8-bit data bus. They are capable of addressing 64K of program memory and a separate 64K of data memory. The 8051 has 4K of code memory implemented as on-chip Read Only Memory (ROM). The 8051 has 128 bytes of internal Random Access Memory (RAM). The 8051 has two timer/counters, a serial port, 4 general purpose parallel input/output ports, and interrupt control logic with five sources of interrupts. Besides internal RAM, the 8051 has various Special Function Registers (SFR), which are the control and data registers for on-chip facilities. The SFRs also include the accumulator, the B register, and the Program Status Word (PSW), which contains the CPU flags. << SHARMILA TANDEL (B.E) ELECTRONICS >>
What is fullform SBUF?
if you are talking about micro controller, it is "serial buffer". it is used to store the the data if RAM is full! just like queue.
Difference between 8031 8051 and 8751 microcontrollers?
Answer It is both 8 bit processors in a 40 pin package but it is not pin compatible, it have almost the same functions but it is very difficult to compare the two because it is not the same family.
What is RAM memory space allocation 8051?
Sorry sir i don't no.
How do you use on chip RAM of 8051?
In other words, how do you save temporary data such as data stored in registers r0 to r7 ? The simplest way to use on-chip RAM of the 8051 is to compile your C code with the "--model-small" small memory model option of the SDCC compiler, which tells it to put all variables in on-chip RAM of the 8051.
What is mean by registers in micro controller?
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.
Which are internal bit addressable RAM locations of 8051?
The 16 bytes (128 bits) at internal RAM locations 0x20-0x2F are bit-addressable.
Why the cost of microprocessor is greater than that of a micro controller?
Microprocessors tend to be much faster than microcontrollers. As real time systems usually don't require fast processors the additional power used for the extra speed is seen as wasted. Older boards are also preferred as it is less likely to contain bugs.
Is there a controller card for ram?
There is a a PCI card that acts as a SATA hard drive. they call it a controller card
Differences between microprocessor and microcontroller?
It's really a question of symantics. "Microprocessor" typically refers to a PC-style CPU, that is, an adaptable piece of silicon that can be instructed to perform most forms of tasks. "Microcontroller" typically means a CPU that is solely dedicated to one purpose. In other words, a PC would have a microprocessor, while a microwave would have a microcontroller.
