Logic for CHIP operating modes:
_______________________________

SEL1 = 0	:	Selects counter
SEL1 = 1	:	Selects raw data input
RST = 0		:	Clear and disable counter/LFSR
RST = 1		:	Enable counter/LFSR
(SEL2,SEL3)=
(1,1)		:	AO3 standard-height cell (CUT1)
(1,0)		:	AO3 4-bit data-path cell (CUT2)	
(0,0)		:	MUX 4-bit data-path cell (CUT3)
(0,1)		:	MUX standard-height cell (CUT4)
OK = 1		:	Golden signatures match
OK = 0		: 	Golden signatures are not matched

* SEL2 = 1/0 selects AO3/MUX
  SEL3 = 1/0 selects standard/datapath