Bitfields for Intel 82371MX Miscellaneous SMI Status register:
Bit(s)	Description	)
 7-4	reserved
 3	=1 indicates system is in global standby mode
 2	SRBTN# caused SMI
 1	BATLOW# caused SMI
 0	reserved
SeeAlso: #01168,#01198,PORT xxxxh"Intel 82371"