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Qquestion

Altera_Forum
Honored Contributor II
‎10-23-2007 02:14 PM
935 Views

I am sorry to trouble you. I want to ask you a question. 

Does it use external parallel resistors on DQ and DQS pins between stratixII Gx and DDR2 chips on Stratix II GX PCI-E Dev board. 

Now I am designing a stratix III pcb board with two DDR2 chips. 

The space of the pcb board is limited. It can't place so many termination resistors. 

I wonder whether the external parallel resistors is necessary. 

I don't have the schematics of Stratix II GX PCI-E Dev board. 

I look forward to your answer. 

Thanks. 

My Email liuxue0512@tom.com
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Altera_Forum
Honored Contributor II
‎10-24-2007 01:08 AM
204 Views

I have sent you information via the e-mail link below that may be of help to your effort. 

 

Triple check the Stratix III documentation to see if you need resistors there. 

 

Or file an SR with the Altera Support line to ask your question as well. 

 

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