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massimosutera
Visitor
Visitor
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Registered: ‎11-16-2020

ISERDESE3 used with data strobe DQS

 

Hello,

I would like to use the ISERDESE3 with DATA_WIDTH=4 and with DQS data strobe from a NAND Flash Memory device.

In spec, page 197, figure 2-26 (attached):

https://www.xilinx.com/support/documentation/user_guides/ug571-ultrascale-selectio.pdf

The figure seems to imply that clock (CLKOUT0) is a continuous clock.

I don't see clearly in the spec any reference to the use of a DQS strobe as input clock to the ISERDESE3.

also, in fig 2-13 page 165 (attached), the data is sampled on the falling edge of the clock, do I need to invert DQS?

 

thank you for any help

Regards

     Massimo

Tags (2)
fig 2-26.png
fig 2-13.png
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kren
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Moderator
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Registered: ‎08-21-2007

Do you want to get more information using data strobe? You can have a look at IP- High speed select IO in pg188: https://www.xilinx.com/support/documentation/ip_documentation/high_speed_selectio_wiz/v3_5/pg188-high-speed-selectio-wiz.pdf

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