Bitfields for DPMS input signal type:
Bit(s)	Description	)
 0	separate sync
 1	composite sync
 2	sync on green
 4-3	unused???
 6-5	voltage level
	00 0.700V/0.300V (1.00 Vp-p)
	01 0.714V/0.286V
	10 0.100V/0.400V
	11 reserved
 7	=1 digital signal, =0 analog
SeeAlso: #00127