The documentation is ambiguous in regard to if it's possible to use the FRO_HF clock when using the USB0 Full-speed Host Controller.
UM11126: Table 37.
The currently selected FRO_192 high speed output at 96 MHz. FRO_HF clock is the output of the FRO_192 divided by 2 (96 MHz). Note that this clock can only be used for USB device and is not reliable for USB host timing requirements of the data signaling rate.
AN13449: 4. Hardware design
When using FS USB host, HS USB host/device, external crystal must be connected.
UM11126: 42.5.
Clock: To have the full-speed USB operating, select either the PLL1, or USB PLL, or FRO clock output as the USB0 clock and the clock must be 48 MHz
The text above seems incorrect there is no USB PLL in the full-speed controller, it can also be used with PLL0. It does however state that the FRO clock can be used.
Is it recommended to use the FRO_HF clock with the USB0 Full-Speed Host controller?
Regards, Johan
