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xytech
New Contributor I
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Does A10 GX input differential Termination Resistor(RD) OCT support Calibration?

Answer:

1.Rd OCT does not support calibration

2.Only one RZQ pin is needed for one IO column banks if they have same VCCIO

3.Internal 100ohm diff input termination on ref clock pins of GXB do not support calib, neither.

 

Finally I still can not understand why Intel and it's representative is so irresponsive on technnical support. Disappointing.

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xytech
New Contributor I
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xytech
New Contributor I
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xytech
New Contributor I
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xytech
New Contributor I
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xytech
New Contributor I
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Answer for Q3. refer from OCT USER GUIDE

OCT.png

xytech
New Contributor I
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Possible Reference for Question 2. Rd does not support OCT Calibration

 

https://www.intel.com/content/altera-www/global/en_us/index/support/support-resources/knowledge-base...

Device Family: Stratix® II

Type: Answers

Area: Component

Last Modified: September 11, 2012

Does the differential on-chip termination (OCT) require calibration resistors?

Description

Differential OCT does not require calibration resistors. Calibration resistors are only required for series and parallel OCT.

 

xytech
New Contributor I
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fkoff

xytech
New Contributor I
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........

xytech
New Contributor I
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Hello ,

Sorry , Apologize for delay in response ,

for reason i didnt get the notification for the post.

 

Thank you ,

 

Regards,

Sree