PLD - Programmable Logic Devices

...einige Vorlesungsmaterialien.

FSM

SUBDESIGN beispiel
 (
  clk,x1,x0	:INPUT;
  y1,y0		:OUTPUT;
 )
 
VARIABLE
 ss MACHINE OF BITS (y1,y0)
  WITH STATES
  (
   s0=B"00",
   s1=B"01",
   s2=B"10"
   );
 
BEGIN
 ss.clk=clk;
 TABLE
 %Current State,	Input, Input		next State%
 ss,				x1,		x0,		=>	ss;
 s0,				1,		0,		=>	s1;
 s0,				0,		x,		=>	s0;
 s1,				x,		1,		=>	s1;
 s1,				1,		0,		=>	s0;
 s1,				0,		0,		=>	s2;
 s2,				x,		x,		=>	s0;
 END TABLE;
END.