![]() CONTROL" linesĮxists see the section on the interactive command interpreter). The -r rawfile option is given then all data generated is written to a Spice 3 rawfile. ![]() ![]() If a rawfile is not specified, then output plots (in "line-printer" form) and tables can be The rawfile may be read by either the interactive mode of Spice 3 or by nutmeg see theīelow) may be used to record the value of internal device variables (see Appendix B). Additional options for Nutmeg may be specified as well and take effect The options line allows the user to reset program control and user options for specific The interactive front-end) or via the ".OPTIONS" line: Via the set command (described later in the section on Various parameters of the simulations available in Spice 3 can be altered to control theĪccuracy, speed, or default values for some devices. See the following section on the interactive command interpreter for the parameters which Options specified to Nutmeg via the ' set'Ĭommand are also passed on to Spice 3 as if specified on a. OPTIONS line and the format of the 'set' command. Any combination of theįollowing options may be included, in any order. In the following table, ' x' and ' n' represent positive real and integer values respectively.Ībstol = x Resets the absolute current error tolerance of the program. The default value is 1 picoamp.īadmos3 Use the older version of the MOS3 model with the "kappa" discontinuity.īypass = x Controls whether bypass code is, or is not, used when evaluating device models. If device conditions have changed little since the last full evaluation - it helps speed, but may occasionally cause convergenceĬhgtol = x Resets the charge tolerance (in coulomb) of the program. It is recommended that chgtol is set to C min× vntol where C min is the smallest capacitor of interest. Defad = x Resets the value for MOS drain diffusion area the default is 0.0.ĭefas = x Resets the value for MOS source diffusion area the default is 0.0.ĭefl = x Resets the value for MOS channel length the default is 100.0 micrometer.ĭefw = x Resets the value for MOS channel width the default is 100.0 micrometer.
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