Bitfields for AMD-645 PM General Configuration register:
Bit(s)	Description	)
 7	enable debounce of PWRBTN# input
 6	enable ACPI timer reset
 5-4	reserved ("do not program")
 3	select ACPI timer size (0 = 24 bits, 1 = 32 bits)
 2	enable PCI Frame Activation as Resume Event im power state C2
 1	clock-throttling cycle time
	0 = 32 usec clock, 512 usec cycle time (default)
	1 = 1 msec clock 16 msec cycle time
 0	reserved ("do not program")
SeeAlso: #01049,#01050,MEM xxxxh:xxx0h"ACPI"