This document discusses multi-port memory, which provides multiple access ports to separate processors or parts of a single processor. It works by allowing processors to access memory through separate ports and memory modules. A potential issue is memory access conflict, which can be resolved by assigning priority levels to each port. The advantages include high transfer rates, while the disadvantages are expensive control logic and large numbers of cables. It references Computer System Architecture by Morris Mano for further information.

1. MULTI PORT MEMORY
SHEIKH ABDUL FAHAD (2016-CS-529)
17-DEC-2019
Department of CS & E
University of Engineering and Technology, Lahore
(Narowal Campus)

2. CONTENTS
• Definition
• Working
• Issues
• Advantages
and
Disadvantages
1

3. WHAT IS MULTIPORT MEMORY
A memory that provides more than one access port to
separate processors or to separate parts of a single
processor.
2

4. WORKING Processor bus
Memory Module
Memory
Port
3

5. ISSUES
• Memory access conflict:
This is resolved by assigning fixed priorities to each memory port.
( i.e. CPU 1 will have highest priority
CPU 2 will have priority over CPU 3
CPU 3 will have priority over CPU 4
CPU 4 will have least priority )
4

6. ADVANTAGES & DISADVANTAGES
ADVANTAGES
• High transfer rate
DISADVANTAGES
• Expensive memory control
logic
• Large number of cables and
connectors
5

7. REFERENCE
• Computer System Architecture By Morris Mano (Third Edition)
6

8. 7