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Ansoft Designer / Ansys Designer 在线帮助文档：

Nexxim Simulator >
VerifEye and QuickEye Analyses >
   Running VerifEye Analysis from the Netlist Editor >
       VerifEye Analysis Netlist Format           


VerifEye Analysis Netlist Format

VerifEye analysis is invoked from the netlist using the .EYE statement:

.EYE
LOW=val HIGH=val TRISE=val TFALL=val BPS=val|UI=val
STEP_RESP_NUM_UI=val
FFE_TAP=val FFE_LOCS=[ val val...] FFE_WEIGHTS=[ val val...]
NORMALIZE_FFE_WEIGHTS=val
DFE_TAP=val DFE_LOCS=[ val val...] DFE_WEIGHTS=[ val val...]
DECISION_THRESHOLD=val DECISION_HIGH=val DECISION_LOW=val
DELAY=val RUN_MISSING_STEP_RESPONSE=val

The VerifEye analysis statement can specify channel parameters and equalization settings. These values will be applied to any Eye Sources and Probes that do not specify them. When a parameter is set on the source or probe and in the analysis statement, the source/probe setting is used.


VerifEye Analysis Statement Parameters

Parameter

Description

Unit

Default

LOW

Logic low voltage level

Volt

 

HIGH

Logic high voltage level

Volt

 

TRISE

Low-to-high rise time

Second

 

TFALL

High-to-low fall time

Second

TRISE

BPS

Bit rate for the source

1/Second

None

UI

Duration of the unit interval. When both UI and BPS are given, UI is used.

Second

None

STEP_RESP_NUM_UI

Number of unit intervals to run step response from

None

 

FFE_TAP

Number of FFE taps

None

0

FFE_LOCS

Bit locations of FFE taps

None

None

FFE_WEIGHTS

FFE weights

None

None

NORMALIZE_FFE_WEIGHTS

1=Normalize (Sum of absolute values of all weights equals one)

0=No normalization

None

 

DFE_TAP

Number of DFE taps

None

None

DFE_LOCS

Bit locations of DFE taps

None

None

DFE_WEIGHTS

DFE weights

None

None

DECISION_HIGH

Decision high value

Volt

 

DECISION_LOW

Decision low value

Volt

None

DECISION_THRESHOLD

Decision threshold

Volt

 

DELAY

Delay offset for transition

Second

 

RUN_MISSING_STEP_RESPONSE

0=analysis fails when no step response file is found for an External Step Response component

1=run transient for any missing step response data.

None

None



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