MICROPROCESSOR AND MICROCONTROLLER

Detailed explanation-1: -What Does Program Counter Mean? A program counter (PC) is a CPU register in the computer processor which has the address of the next instruction to be executed from memory. It is a digital counter needed for faster execution of tasks as well as for tracking the current execution point.

Detailed explanation-2: -The Program Counter (PC) is accessed as PC (or R15). It is incremented by the size of the instruction executed (which is always four bytes in ARM state). Branch instructions load the destination address into PC. You can also load the PC directly using data processing instructions.

Detailed explanation-3: -Program counter (PC): The program counter acts as a pointer to the next instruction to be executed and always contains the 16-bit address of the memory location of the next instruction. It is a 16-bit register as 8085 has 16 address lines.

Detailed explanation-4: -The program counter, PC, is a special-purpose register that is used by the processor to hold the address of the next instruction to be executed. The PLA automatically updates the PC to point to the next instruction during the op-code decode cycle.

Detailed explanation-5: -A program counter is a register in the CPU containing the address of the next instruction to be executed from memory. For example, when your computer is turned on, a signal places the decimal number F000 into the CPU. This action tells the computer to look at the first instruction on the motherboards flash memory chip.