What is Address Register
An address register (AR) is described as a register that provides an address to the address bus, specifying the location in memory to be accessed. The AR is a crucial component in the operation of a computer system, particularly in memory-related tasks. Here’s a breakdown of the role and functions of the Address Register (AR) based on the paragraph:
Function of the Address Register (AR)
- The primary function of the Address Register (AR) is to supply an address to the address bus.
- The address specified by the AR indicates the location in the memory that is to be accessed.
Memory Access Control
- The type of memory access, whether it is a read or a write operation, is determined by setting the level of a Read/Write (R/W) control line.
- The AR register is involved in both read and write operations.
In summary, the Address Register (AR) serves as a key component for specifying memory addresses and plays a crucial role in facilitating both read and write operations in a computer system. It is part of a set of registers that provide an interface between the system components and the memory system and input/output devices.