Walter,
Starting with bird189.5_draft18_v1, we have this:
In Page 94 replace:
A_gnd is a universal reference node, similar to SPICE ideal node "0."
with
A_gnd is a reference node of the [Component]. It represents a "local" ground,
and the EDA tool may connect it to the global ground (similar to SPICE ideal
node "0"). The local ground is the reference node for the I/O signal(s).
Let's agree on what A_gnd is first...
Thanks,
Arpad
================================
From: ibis-interconn-bounce@xxxxxxxxxxxxx
[mailto:ibis-interconn-bounce@xxxxxxxxxxxxx] On Behalf Of Walter Katz
Sent: Wednesday, March 7, 2018 7:55 AM
To: IBIS-ATM <ibis-macro@xxxxxxxxxxxxx>; ibis-interconn@xxxxxxxxxxxxx
Subject: [ibis-interconn] A_gnd in IBIS 6.1
All,
In IBIS 6.1
On Page 94
11
A_gnd
Global reference voltage port
...
A_gnd is a universal reference node, similar to SPICE ideal node "0."
Page 123
One of these port entries must name a reference for the other port (for
example, A_gnd).
The line on Page 123 is consistent with the usage we are including in BIRDs 158
and 189. I suggest the following changes:
11
A_gnd
Local reference voltage port
...
A_gnd is a signal ground or reference node for measuring voltages. A_gnd can be
either a universal reference node, similar to SPICE ideal node "0", or a node
near the node being measured.
Other than BIRDs 158 and 189, A_gnd does not appear in any other BIRDs that
have been approved for IBIS 7.0
Walter
Walter Katz
wkatz@xxxxxxxxxx<mailto:wkatz@xxxxxxxxxx>
978.461-0449 x 133
Mobile 303.335-6156