I'm using EBD model to simulate RDIMM, but I have a trouble how to set the termination of the differential CK0/CK0# in Hyperlynx 8.1.
In EBD model, there is description about the resistor:
| Since ebd standards do not incorporate correct modeling of differential
| traces CK0/CK0# the differential resistors (R19) are
| assigned as an external component for reference designator. The
| components for the differential resistors are defined in series
| resistor ibis model r_120.ibs. If your simulation tool does not support
| series resistor models please add the differential resistor in the
| simulation setup file in order to get correct results.
| This File uses u68a.ibs file released
| Rev 2.2: 05/24/2010
| This file incorporates package parasitics from the u68aX8_2cob.ebd, released Rev 2.1: 02/26/2010.
| Please select the appropriate speed grade models through [Model Selector]
| for 800Mbps choose *_800 models.
| This EBD represents the typical board with a nominal impedance of 60ohms
| and a dielectric constant of 4.2
How can I do in Hyperlynx 8.1, thanks.