Altera JNEye - Manual (Page 67)

Figure 2-42: Receiver IBIS-AMI Parameter Type Designation for Link Optimization
JNEye 15.0 supports link optimization with IBIS-AMI receiver models. On the left are the model specific
parameters. For each parameter that JNEye determines is tunable, a pull-down menu allows you to assign
the receiver parameters. The types of receiver parameters are as follows:
• No Sweep—No sweeping or link optimization is performed
• Sweep—JNEye sweeps or performs link optimization using available options provided by the IBIS-
AMI model. This parameter is not supported in the JNEye 15.0 release.
• CTLE Adapt Controller—This receiver parameter enables or disables automatic adaptation of the
CTLE or analog equalizer. This sweep parameter is used when the link optimization method is
CTLE=>FIR=>DFE or CTLE=>FIR & DFE.
• DFE Adapt Controller—This receiver parameter enables or disables automatic adaptation of the DFE.
This sweep parameter is used when the link optimization method is CTLE=>FIR=>DFE or
CTLE=>FIR & DFE.
• Sweep as CTLE—This receiver parameter is swept as the CTLE or analog equalizer with all available
options.
• Sweep as CTLE AC Gain—Tthis receiver parameter is swept as the CTLE’s AC gain controller. This
sweep parameter is generally used in conjunction with the Sweep as CTLE DC Gain parameter.
• Sweep as CTLE DC Gain—This receiver parameter is swept as the CTLE’s DC gain controller. This
sweep parameter is generally used in conjunction with the Sweep as CTLE AC Gain parameter.
With the information provided in the IBIS-AMI model and parameter type selections, JNEye determines
the link optimization approach and conducts the simulation. If you cannot determine the nature of the
model specific parameters, consult with the IBIS-AMI vendors. An example of transmitter IBIS-AMI
parameter type designations is shown in the above figure.
Note: JNEye assumes no overlapping between jitter and noise components. Examine the IBIS-AMI
Rx_Clock_PDF parameters when they are imported into JNEye. Consult device vendors or model
providers about the scope or definition of the DJ component and DCD component in the IBIS-
AMI model to avoid double-counting their effects.
Status tab
The Status tab shows the parameters that are fed into the IBIS-AMI model for simulations.
UG-1146
2015.05.04
Receiver Options 2-61
Functional Description Altera Corporation
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