Bitfields for Intel 82439TX miscellaneous control register:
Bit(s)	Description	)
 7	reserved
 6	ACPI control register enable
 5	Suspend refresh type (EDO/FPM DRAM only)
	=1 Self refresh (Always for SDRAM)
	=0 CBR refresh
 4	Normal refresh enable
	When set to 1, 82439TX switches from suspend refresh to normal refresh
 3	reserved
 2	Internal clock control disable
	=1 disable
	=0 enable  Disables 82439TX internal clocks during suspend, reducing
	  power consumption.
 1-0	reserved
SeeAlso: #01099