DS2 DS1 BUS/CORE
----------------------
ON ON X2.5
ON OFF X2
OFF ON X3
OFF OFF X1.5
------------------- ----------------
DS7=OFF DS7=ON
------------------- ----------------
DS3 DS4 HCLK DS3 DS4 HCLK
ON ON 60MHz ON ON 50
ON OFF 75MHz ON OFF 55
OFF ON Test OFF ON 66
OFF OFF X OFF OFF 83