Bitfields for CAM flags:
Bit(s)	Description	)
 0	CDB is a pointer
 1	tagged queue action enable
 2	linked CDB
 3	disable callback on completion
 4	scatter/gather
 5	disable autosense
 7-6	direction (00 reserved, 01 in, 10 out, 11 no data transfer)
 9-8	reserved
 10	engine synchronize
 11	SIM queue freeze
 12	SIM queue priority
	1 head insertion
	0 tail insertion (normal)
 13	disable synchronous transfers	\ mutually
 14	initiate synchronous transfers	/ exclusive
 15	disable disconnect