Hi Arpad,
I would suggest a more precise statement to replace:
For pins that are not listed under the [Pin Numbers] keyword in the [Define
Package Model] section, i.e., pins whose package model is not defined in the
[Define Package Model] keyword, the EDA tool is expected to first look for the
package RLC values under the [Pin] keyword. If this information is not
available there, the EDA tool is expected to make use of the package RLC values
in the [Package] keyword. However, the EDA tool is expected to use an open
circuit between those pins and their corresponding pads that are not listed
under the [Pin Numbers] keyword but are connected to a bus (defined by the [Pin
Mapping] keyword) where the bus includes another pin that is listed under the
[Pin Numbers] keyword.
by
For pins that are not listed under the [Pin Numbers] keyword in the [Define
Package Model] section, i.e., pins whose package model is not defined in the
[Define Package Model] keyword, the EDA tool is expected to first look for the
package RLC values under the [Pin] keyword. If this information is not
available there, the EDA tool is expected to make use of the package RLC values
in the [Package] keyword. However, if such a pin is connected to a bus (defined
by the [Pin Mapping] keyword) where the bus includes another pin that is listed
under the [Pin Numbers] keyword then the [Package] or [Pin] RLC sub-circuit
shall not be used.
I have changed the last sentence. My point is that the unlisted pins are still
connected to the pads via the [Merged Pins] mechanism and, therefore, are not
open-circuited.
Radek
-----Original Message-----
From: ibis-macro-bounce@xxxxxxxxxxxxx [mailto:ibis-macro-bounce@xxxxxxxxxxxxx]
On Behalf Of Muranyi, Arpad
Sent: Thursday, April 09, 2015 1:55 PM
To: ibis-macro@xxxxxxxxxxxxx
Subject: [ibis-macro] Updated BIRD draft on [Define Package Model] is on the
ATM website now
Hello everyone,
This is to inform you that an updated version of the BIRD draft on the topic of
clarifying the [Define Package Model] keyword is now available on the ATM
website:
http://www.vhdl.org/pub/ibis/macromodel_wip/archive/20150409/arpadmuranyi/Power%20Pin%20Package%20Modeling%20BIRD%20draft%202/BIRD175_draft2.pdf
Please look it over and give us your feedback in case something needs to be
changed.
Thanks,
Arpad
=====================================================================
---------------------------------------------------------------------
IBIS Macro website : http://www.eda.org/pub/ibis/macromodel_wip/
IBIS Macro reflector: //www.freelists.org/list/ibis-macro
To unsubscribe send an email:
To: ibis-macro-request@xxxxxxxxxxxxx
Subject: unsubscribe
---------------------------------------------------------------------
IBIS Macro website : http://www.eda.org/pub/ibis/macromodel_wip/
IBIS Macro reflector: //www.freelists.org/list/ibis-macro
To unsubscribe send an email:
To: ibis-macro-request@xxxxxxxxxxxxx
Subject: unsubscribe
