VerifEye Source Netlist Syntax — Ansoft Designer 7.0 在线帮助文档，Ansys Designer 教程

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VerifEye Source Netlist Syntax

The netlist syntax for the VerifEye Source is:

AEYESOURCExxxx n1 [n2] COMPONENT=EYE_SOURCE
+ RESISTANCE=val
+ VLOW=val VHIGH=val TRISE=val TFALL=val
+ UI=val BPS=val
+ STEP_RESP_NUM_UI=val
+ DCD=val TXRJ=[val ...] TXPJ=[val ...] TXUJ=[val ...]
+ TXCJ='filename'
+ FFE_TAPS=val
+ FFE_LOCS=[ locations ]
+ FFE_WEIGHTS=[ weights ]
+ NORMALIZE_FFE=val
+ FFE_COMPUTE_PROBE='probe_name'

n1 is the node connected to the single-ended source. n2 is the second node on a differential source.

Note

The Eye sources are internally grounded. All terminals should be connected to signal lines, not directly to ground.

The entry COMPONENT=EYE_SOURCE is required.

**Eye Source Parameters for VerifEye**
Parameter	Description	Unit	Default
RESISTANCE	Port impedance	Ohm	50
VLOW	Logic low voltage level	Volt
VHIGH	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
DCD	Duty cycle distortion (Fraction of UI 0 < DCD < 1).	None
TXRJ	Transmit Gaussian random jitter (standard deviation). List of values enclosed in brackets.	Second
TXPJ	Transmit Periodic random jitter (amplitude). List of values enclosed in brackets.	Second
TXUJ	Transmit Uniform random jitter (amplitude). List of values enclosed in brackets.	Second
TXCJ	File containing jitter probability density function data. Two-column data specifies times in seconds and corresponding PDF values separated by spaces.	None	None
FFE_TAPS	Number of FFE taps	None	0
FFE_LOCS	Bit locations of FFE taps	None	None
FFE_WEIGHTS	FFE weights	None	None
NORMALIZE_FFE	1=Normalize (sum of absolute values of all weights equals one) 0=No normalization	None
FFE_COMPUTE_PROBE	Name of the associated eye probe	None	None
DELAY	Delay offset for transition	Second
STEP_RESP_NUM_UI	Number of unit intervals to run step response from	None


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