If I want to use USB module (as HOST ) in 52259, the USB clock MUST be 48MHz, right? I saw this in the reference manual, but could not find the reason.
If I disable PLL, in order to generate all the component clocks I need (UART, USB, Ethnet etc), could I use external 16MHz oscillator, or I must use 48Mhz oscillator.
Basically, my question/problem is:
In my coldfire 52259 board, it has 16Mhz oscillator. If I want to disable PLL, could I generate all component clocks I need?