Direct Memory Access (DMA): Working, IO Transfer Modes, and Timing Explained

Direct Memory Access - DMA is explained with the following Timestamps:
0:00 - Direct Memory Access - DMA - Computer Organization & Architecture
1:35 - Working of Direct Memory Access
9:03 - Modes of DMA
11:39 - Timings of DMA

Direct Memory Access - DMA is explained with the following outlines:
0. Computer Organization & Architecture
1. Input Output Organization
2. IO Transfer Modes
3. Direct Memory Access - DMA
4. Working of Direct Memory Access
5. Modes of DMA
6. Timings of DMA

Here i have explained two modes of DMA
1. Cycle Stealing Mode of DMA
2. Burst Mode of DMA

Here i have explained two categories of timings of DMA
1. CPU busy State
2. CPU block State

Chapter-wise detailed Syllabus of the Computer Organization & Architecture Course is as follows:

Chapter-1 Introduction to Computer Architecture:    • Introduction to Computer Architecture  
Computer Architecture, Von Neumann Architecture, Harvard Architecture, Comparison of Von Neumann and Harvard Architecture, Flynn's Classification, RISC and CISC Architecture, Little Endian and Big Endian Computer, Memory Interfacing examples, Registers of computer, Registers organization in computer, Common Bus Access in Computer, Examples on Registers of Computer

Chapter-2 Instructions of Computer:    • Instructions of Computer  
Instruction Formats, Examples on Instruction Formats, Instruction Cycle, Timing and Flowchart of Instruction cycle, State Transition Diagram of Instruction cycle, Types of Instructions, Addressing Modes in Computer, Examples on Addressing Modes in Computer, Examples in Instruction Execution.

Chapter-3 Control Unit:    • Control Unit of Computer Architecture...  
CPU Execution Time, Average CPI of CPU and MIPS, Examples on CPU Performance,
CPU Performance Parameters, Amdahl's Law, Micro Operations of Instruction, Hardwired Control Unit, Wilkes Design for Microprogrammed Control Unit, Microprogrammed Control Unit, Comparison of Hardwired Control Unit and Microprogrammed Control Unit, Nano Programming, Microinstruction Format, Examples on Microinstruction Format, Examples on Control Unit, Registers Organization in RISC Processor,

Chapter-4 Pipelining:    • Pipelining in Computer Architecture a...  
Pipelining in Computer, Parameter's of Pipelining, Structural Hazards in Pipelining, Data Hazards in Pipelining, Control Hazards in Pipelining, Examples of Pipelining, Examples of Pipelining Hazards, CPI and Speed up in Pipelining with Hazards.

Chapter-5 Execution Unit:    • Execution Unit of Computer Architectu...  
Signed Data Representation and Range of Signed Numbers in Computer, Examples on Number Representation, Normalization of Floating Point Number, IEEE 754 Single Precision Floating Point Number Representation, IEEE 754 Double Precision Floating Point Number Representation, Extreme Cases of Floating Point Representation in IEEE 754 Format, Examples on Floating Point Numbers, Half Adder and Full Adder, Ripple Carry Adder, Carry Look Ahead Adder, 4 bits Adder Subtractor, Booth's Algorithm, Examples on Booth's Algorithm, Restoring Division Algorithm, Non Restoring Division Algorithm.

Chapter-6 System Bus:    • System Bus in Computer Architecture a...  
System Bus basics, System Bus direction and interfacing with peripherals of computer, Bus Contention and Bus Arbitration techniques, Daisy Chain, Polling & Independent Request Bus Contention Methods.

Chapter-7 IO Organization:    • IO Organization in Computer Architect...  
Input Output Organization, Programmed IO, Interrupt Driven IO, Direct Memory Access - DMA, Examples on DMA.

Chapter-8 Memory:    • Memory in Computer Architecture and O...  
Memory Organization in Computer, Locality of Reference, Spatial Locality and Temporal Locality, Average Access Time and Access Speed of Memory, Examples on Average Access Time and Access Speed of Memory, Cache Memory Organization, Direct Address Mapping in Cache Memory, Fully Associative Address Mapping in Cache Memory, Set Associative Address Mapping in Cache Memory, Replacement Strategies in Cache Memory, Updation Techniques in Cache Memory, Write Through Updation Technique in Cache Memory, Write Back Updation Technique in Cache Memory, Multi Level Cache Memory, Types of Misses in Cache Memory, Examples on Mapping of Cache Memory, Examples on Multi Level Cache Memory, Examples on Conflict Misses in Cache Memory.

Engineering Funda channel is all about Engineering and Technology. Here this video is a part of Computer Organization & Architecture.

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