Subject: [IBIS-Users] [Pin Mapping] syntax
From: Todd Westerhoff (twesterh@cisco.com)
Date: Wed Mar 05 2003 - 13:17:44 PST
Hi all,
If I have a [Pin Mapping] section in an IBIS model, I expect to see the
mapping for an output or bidirectional buffer show something like:
[Pin Mapping] pulldown_ref pullup_ref gnd_clamp_ref power_clamp_ref
A10 GND VDDQ GND VDDQ
... but what about an input pin? The input pin has no pullup/pulldown
device, so is "NC" the appropriate entry in the first two fields, as in:
[Pin Mapping] pulldown_ref pullup_ref gnd_clamp_ref power_clamp_ref
A11 NC NC GND VDDQ
... or is some other syntax supposed to be used?
Todd.
Todd Westerhoff
High Speed Design Specialist
Cisco Systems
1414 Massachusetts Ave - Boxboro, MA - 01719
email:twesterh@cisco.com
ph: 978-936-2149
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