MICROPROCESSOR AND MICROCONTROLLER

Detailed explanation-1: -ARM processors have 37 registers. The registers are arranged in partially overlapping banks. There is a different register bank for each processor mode. The banked registers give rapid context switching for dealing with processor exceptions and privileged operations.

Detailed explanation-2: -The instruction set contains instructions supporting the following data types held in registers: 32-bit pointers. unsigned or signed 32-bit integers. unsigned 16-bit or 8-bit integers, held in zero-extended form. signed 16-bit or 8-bit integers, held in sign-extended form.

Detailed explanation-3: -The ARM Architecture defines a User mode that has 15 general purpose registers, a pc, and a CPSR.

Detailed explanation-4: -Branch instructions. Data processing instructions. Single register load and store instructions. Multiple register load and store instructions. Status register access instructions. Semaphore instructions. Coprocessor instructions.