[ibis-macro] Re: BIRD-124: Dependency tables - question?
- From: Taranjit Kukal <kukal@xxxxxxxxxxx>
- To: "wkatz@xxxxxxxxxx" <wkatz@xxxxxxxxxx>, "'IBIS-ATM'" <ibis-macro@xxxxxxxxxxxxx>
- Date: Mon, 17 Jan 2011 19:47:06 +0530
Hi Walter,
Help me understand this further. Looks like the Intent is to associate Analog
IO model (different IO-model strengths) to AMI-parameter so that correct
portion of AMI-code gets executed according to Analog IO-model that is picked.
However, what I fail to understand is that how this association gets utilized.
If the user has to manually set a Key-parameter as per the IBIS buffer-strength
to allow picking of dependent parameters then why are not let ami-code do it
(Let tables be coded inside of AMI dll).
To me, it looks like "Good to have" rather than a real need. Please explain
with small example if I am missing the point.
rgds
..kukal
________________________________
From: ibis-macro-bounce@xxxxxxxxxxxxx [mailto:ibis-macro-bounce@xxxxxxxxxxxxx]
On Behalf Of Walter Katz
Sent: Thursday, January 13, 2011 8:32 PM
To: Taranjit Kukal; 'IBIS-ATM'
Subject: [ibis-macro] Re: BIRD-124: Dependency tables - question?
Kukai,
The impulse response of the channel must be determined before the AMI DLL is
called. The AMI file contains the switches that program the Tx or Rx model. The
value of these switches determine the analog model of the driver that is
required to determine the impulse response of the channel.
Walter
From: ibis-macro-bounce@xxxxxxxxxxxxx [mailto:ibis-macro-bounce@xxxxxxxxxxxxx]
On Behalf Of Taranjit Kukal
Sent: Thursday, January 13, 2011 2:11 AM
To: IBIS-ATM
Subject: [ibis-macro] BIRD-124: Dependency tables - question?
Hi,
The dependency tables would be useful only if we want to keep same AMI-code
(dll) and just change the dependency outside of the code using .ami file.
However, I do not see this as common use-model - I would assume that all such
dependency should be handled inside of c-code (Algorithmic...) and that we
should avoid overloading of .ami file such tables. AMI-code should be able to
handle such dependency by coding the right values for dependent parameters
based on Key parameters in ami file.
Please let me know if I am missing a use-case where this cannot be handled
inside the dll.
rgds
..kukal
Taranjit Kukal | Product Engineering Architect
P: 91 120 3984000 www.cadence.com<http://www.cadence.com/>
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