Tutorial By Namitha

8051 MICROCONTROLLER & 8051 PROGRAMMING  

MEMORY INTERFACING            Communication between processor and memory is known as interfacing with memory (RAM or ROM) memory access possible by using Memory Read signals and Memory write signals. System is associated with different memory chips ,so processor need to properly fix one among them for performing memory access operations. So need a chip selection signal for selecting a memory chip properly . All these signals are generated by a device for supporting memory access operation is known as memory interfacing unit .