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Combining analog and digital blocks in Cadence Encounter
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Hi,

I have designed a custom memory bank and a couple of other analog blocks in cadence virtuoso. These blocks need to be interfaced with a controller and other digital parts. I have the HDL for the digital parts and i can successfully synthesize into gate-level using Synopsys design vision (or Cadence RTL compiler).

I need to know how can i place and route all these blocks automatically. I have heard there is a way to declare the analog blocks as 'black boxes' and then define the connections between the digital and analog blocks, but i am not able to find any help on how to do that.

Does anyone have any tutorial or other resources on that?

Regards,
Awais

Posted on: 2008/9/9 14:41
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Re: Combining analog and digital blocks in Cadence Encounter
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Quote:

amkamboh wrote:
Hi,

I have designed a custom memory bank and a couple of other analog blocks in cadence virtuoso. These blocks need to be interfaced with a controller and other digital parts. I have the HDL for the digital parts and i can successfully synthesize into gate-level using Synopsys design vision (or Cadence RTL compiler).

I need to know how can i place and route all these blocks automatically. I have heard there is a way to declare the analog blocks as 'black boxes' and then define the connections between the digital and analog blocks, but i am not able to find any help on how to do that.

Does anyone have any tutorial or other resources on that?

Regards,
Awais


Hi,

You need to create LEF/Liberty library files for such blocks to be able to use in digital backend. Also you could create a pure black box specifing black box commands (see man for details) and using subset of floorplan editing commands in way to specify sizes/boxes of such blocks.

Posted on: 2009/11/12 12:16
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