Bitfields for Intel 82380FB Connector Event register:
Bit(s)	Description	)
 7	reserved (1)
 6	activate power-no suspend
 5	(read-only) inverted state of MISAEN pin
 4	(read-only) inverted state of DSTYP pin
 3	undocking permit
	software should set this bit for at least 32 microseconds; when this
	  bit is then cleared, the MPCI2 pulses the OPENACK signal for 256 us
	  to tell external hardware to "eject" the notebook
 2	reserved (1)
 1	system is docked
 0	open requested
SeeAlso: #01093