Format of Line speed subvector:
Offset	Size	Description	)
 00h	BYTE	04h (length)
 01h	BYTE	09h (subvector "Line speed")
 02h	WORD	bit map, highest set bit selects speed
		bit 0: 2400
		bits 1-7: 1800, 1200, 600, 300, 115200, 150, 110 bps
		bits 8-15: 57600, 38400, 19200, 14400, 9600, 7200, 4800, 3600
SeeAlso: #00313