Specifications

Gates and Buffers 101
Gate Definition
The gate types, except NOT, can be created with any number of inputs
from 0 to 799. They are defined as shown in the following table.
Gate Pin Order
The NOT type must have exactly one input and one output, in that order.
All other logic gate types can have any number of inputs, up to the maxi-
mum LogicWorks limit of 800 pins, followed by a single output.
NOTE: Pin order is important in all primitive devices! When creating a gate type
using the DevEditor tool, the output pin must be the last item on the pin list.
See Appendix A, Primitive Device Pin Summary.
Function Output is... Output is DONT if...
AND LOW if any input is low,
HIGH otherwise
Some input is DONT and no input is
LOW
NAND HIGH if any input is LOW,
LOW otherwise
Some input is DONT and no input is
LOW
OR HIGH if any input is HIGH,
LOW otherwise
Some input is DONT and no input is
HIGH
NOR LOW if any input is HIGH,
HIGH otherwise
Some input is DONT and no input is
HIGH
XOR HIGH if an odd number of
HIGH inputs and no
DONTs
Any input is DONT
XNOR HIGH if an even number
(or zero) of HIGH inputs
and no DONTs
Any input is DONT
LW Reference.bk Page 101 Monday, December 15, 2003 5:59 PM