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Date: December 11, 1991 17:51
From: KIM::HUBBERSTEY
To: JMOORE,LEE,MARGOLIN,MCCARTHY,PAAUW
CC: HUBBERSTEY
John and I have just gone through our standard library and tagged the PINTYPE attributes that need to be changed for the Logic Design Rule Checker (LDRC) to work. Once we have PCB make these changes it should be possible to get meaningfull DRC reports from WorkView. In order for us not to have to repeat this exercise, I would ask that when you define a new symbol you make sure that the PINTYPE attributes are set properly. The choices are: IN input-only pin OUT always enabled output pin OEM open emitter/source output pin OCL open collector/drain output pin BI bi-directional I/O pin. This must be used for bidirectional data busses if the LDRC is to work properly TRI tristate output pin. Use only for tristate outputs, not for I/O pins ANALOG any analog component pin or other pin you don't want to hear about (like connectors) If you don't specify the pin types, Leon will make a (usually incorrect) guess as to what they are so please remember to specify. Many thanks, Tim
Dec 11, 1991