I'm a little puzzled on one thing about the ADC clock. According to the KE06 data sheet, the conversion clock has to be between 0.4 and 8 MHz for high speed mode. If I'm using a 24 MHz bus clock, then I must use bus clock/2 as the source, and divide that by 2 to get to 6 MHz. What if I divide that by 4 to get 3 MHz? Does it just mean that conversions take longer?