ClockDivideRatio
Default = 0
Ratio1 = 0
Ratio10 = 9
Ratio11 = 10
Ratio12 = 11
Ratio13 = 12
Ratio14 = 13
Ratio15 = 14
Ratio16 = 15
Ratio2 = 1
Ratio3 = 2
Ratio4 = 3
Ratio5 = 4
Ratio6 = 5
Ratio7 = 6
Ratio8 = 7
Ratio9 = 8