nor_xbit :
A multi-input NOR gate with xbit-type input/output’s.

The nor_xbit primitive models a multi-input NOR logic gate with xbit-typed signals. It is suitable for processing digital signals of which precise timing information must be preserved.

The input to the nor_xbit primitive is an xbit array, of which length is specified by the parameter num_in.

The propagation delay of the logic gate is specified by the parameter delay. The implemented delay is inertial, meaning that if a new input event arrives before the previous input event propagates to the output, the output event will be overriden with the one corresponding to the new input event. If a transport delay behavior is desired, use the delay_xbit primitive instead.

Input/Output Terminals

Name	I/O	Type	Description
out	output	xbit	output signal
in	input	xbit	input signals

Parameters

Name	Type	Default	Unit	Description
num_in	integer	2	None	number of inputs
delay	real	0.0	seconds	propagation delay