Bitfields for HP Vectra Extended BIOS serial port attributes:
Bit(s)	Description	)
 8-5	data rate (110, 150, 300, 600, 1200, 2400, 4800, 9600, 19200)
 4-3	parity
	00 none
	01 odd
	10 none
	11 even
 2	stop bits (0 = one, 1 = two)
 1-0	bits per character
	10 seven-bit characters
	11 eight-bit characters
	0x undefined