Bitfields for TI PCI1130 Card Control Register:
Bit(s)	Description	)
 0	interrupt pending
 1	speaker output enabled
 2	reserved
 3	enable status-change interrupt routing (to INTA# for socket A, INTB#
	  for socket B)
 4	function interrupt routed to corresponding PCI interrupt pin
 5	PCI interrupts enabled
 6	ZOOM video mode enabled
 7	Ring Indicator enabled on IRQ15/RI_OUT pin
SeeAlso: #00890,#00898