1、GEIA-STD-000 1 Approved: 10/07/2005 GEIA STANDARD IBIS Interconnect Modeling Specification GEIA-STD-0001 October 2005 GOVERNMENT ELECTRONICS AND INFORMATION TECHNOLOGY ASSOCIATION A Sector of the Electronic Industries Alliunc Copyright Government Electronics therefore it is enough to use only the pr
2、efixes to scale the parameters. However, for clarity, it is allowed to use full abbreviations for the units, (e.g., pF, nH I mA, m0hm). In addition, scientific notation IS allowed (e.g., 1.2345e-12). 10) All temperatures are represented in degrees Celsius. 11) All lines that occur before the Begin H
3、eader keyword or after the End keyword shall be treated as comments and ignored by the parser. The intent of this rule is to facilitate the inclusion of HTML tags, revision control headers, etc. at the beginning of the ICM file. 12) The following words are reserved words and must not be used for any
4、 other purposes in the document: POWER - reserved model name, used with power supply pins, GND - reserved model name, used with ground pins, NC - reserved model name, used with no-connect pins, NA - used where data not available. 13) Unless explicitly overridden by the subparameter description, a si
5、ngle numeric argument is separated from its associated subparameter by an equals sign (=); white space around the equals sign is optional. A set of numeric values (such as typ, min and max values) is separated from its associated subparameter by white space, without an equals sign. Symbolic (text) a
6、rguments are separated from their associated subparameter by one or more white spaces. 14) Note that the text here, in many cases, assumes that the model data describes a connector. However, other types of interconnect can be modeled using the ICM format; in these cases, the words “pin“ and “port“ i
7、n the text below can be interpreted to refer to the locations where the interconnect is accessed for probing, measurement or analysis. 6 Copyright Government Electronics one stub matrix is re-used, and another stub is repeated Begin ICM Model MyModelExample4 ICM - model - type MLM Tree Path Descript
8、ion Model pinmap MyModelPinMapA Section Mult=l A Fork Section Mult=l stubl Section Mult=l stub2 Section Mult=l stubl Endfork Section Mult=l B Fork Endfork Section Mult=l C Model - pinmap MyModelPinMapB Section Mult=2 stub4 End ICM Model . Example 5: 2 ports per conductor, 3 stubs Begin ICM Model MyM
9、odel4 ICM model type MLM Tree-Path Description Model pinmap MyModelPinMapA Section Mult=l A Fork Endfork Fork Section Mult=l Stubl Section Mult=l B Section Mult=l Stub2 Section Mult=l Stub3 Section Mult=l Stub4 Endfork 26 Copyright Government Electronics & Information Technology Association Reproduced by IHS under license with GEIA Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-
