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.

edge and center aligned data

Status
Not open for further replies.

hulk789

Junior Member level 3
Joined
Jul 18, 2015
Messages
27
Helped
0
Reputation
0
Reaction score
0
Trophy points
1
Activity points
211
What is the difference between edge aligned and center aligned data.
 

What is the difference between edge aligned and center aligned data.

The difference is a 90 degree phase shift between clock and data for DDR and 180 degree phase shift for SDR.
i.e. clock edge alligned with data chnges or in the middle between data changes when the data is stble
 

The difference is a 90 degree phase shift between clock and data for DDR and 180 degree phase shift for SDR.
i.e. clock edge alligned with data chnges or in the middle between data changes when the data is stble

What is SDR and DDR here
 

What is SDR and DDR here

SDR - Single Data Rate (at single edge)
DDR - Double Data Rate (at both positive & negative edge)

image26915.jpg
 
Status
Not open for further replies.

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top