Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

what is the difference between DMA and CentralDMA

Status
Not open for further replies.
B

bibith

Newbie level 1
Newbie level 1
Joined
Jun 3, 2014
Messages
1
Helped
0
Reputation
0
Reaction score
0
Trophy points
1
Visit site
Activity points
5
can any one explain what is the difference between DMA and Central DMA.
 

bibith said:
can any one explain what is the difference between DMA and Central DMA.
Click to expand...

In the PC world, I believe "central" DMA refers to a single DMA controller chip (8237 I seem to recall) that is used for all DMA transfers on the bus not performed by the CPU.

In a PCI system, due to the bandwidth of the various devices and level of IC integration, DMA controllers are distributed on devices as needed.
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top