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Question on DDR2_ODT pin

Question asked by cvanbijleveld on Oct 11, 2012
Latest reply on Oct 15, 2012 by cvanbijleveld

Hello,

 

From other designs we know that the ODT (on-die-termination) pin changes its value when reading/writing data from/to external memory.

 

With the ADSP-21469 we observe that, after programming this pin with a value of 50 ohm, it stays on high-level always, no matter whether data is being read or written. Is this a normal behavior on the SHARC or do we need to activate any other parameter regarding the ODT to see the pin switching between high and low levels??

 

Thanks,

 

Christian

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