Electrical Digital Components OverviewThis library contains electrical digital components based on the VHDL standard with 9-valued logic and conversion to 2-valued logic.
Digital signals are usually considered to be discrete values such as logic 1 or 0; however, the drive strength (none, weak, or strong) and unknown values of a signal may also be considered.The following table gives the integer values used by MapleSim for each of the nine states. When a digital signal is plotted, the y-axis corresponds to these integer codes. For example, a digital signal that steps from a forcing 0 to a forcing 1 has a plot that steps from 3 to 4.Logic ValueInteger CodeMeaning'U'1Uninitialized'X'2Forcing Unknown'0'3Forcing 0'1'4Forcing 1 'Z'5High Impedance 'W'6Weak Unknown 'L'7Weak 0 'H'8Weak 1 '-'9Don't care Digital Converters and GatesTypeDescriptionDigital ConvertersConverters between 2- and 9-valued logicDelay ComponentsComponents with delaysGates With DelayStandard logic gates with delaysIdeal GatesStandard logic gates without delaysSourcesTypeDescriptionDigital SourcesTime-dependent digital signal sources
<Text-field bookmark="__SeeAlso" style="Heading 2" layout="Heading 2">See Also</Text-field>Electrical Library Overview