Bitfields for TI Professional System Configuration Word:
Bit(s)	Description	)
 0	drive A: installed
 1	drive B: installed
 2	drive C: installed
 3	drive D: installed
 4	drive A: is 80-track
 5	drive A: is double-sided
 6	60-Hz (USA,etc.) system instead of 50-Hz (Europe)
 7	hard disk installed
 8	serial port 1 installed
 9	serial port 2 installed
 10	serial port 3 installed
 11	serial port 4 installed
 14-12	installed graphics planes
	000 none
	001 plane A
	111 planes A, B, and C
 15	clock installed
SeeAlso: #03263