Switch the
XOSC Source Controller
value to 1 to turn on the XOSC. The output XOSC frequency is now 40 MHz, as show in the
following figure.
Figure 25. Actual XOSC frequency with source turned on
3.1.2 Configure PLL0
Follow the XOSC path to
AUX Clock Selector 3
. Change the
AUX Clock Selector 3
value to 1, so that PLL0 sources from XOSC,
as shown in the figure below.
NXP Semiconductors
Clock tool example use sase: Configure FlexCAN to XOSC at 40 MHz protocol clock and PLL0 50 MHz BIU/Module clock
MPC574xR Clock Calculator Guide, Rev. 5, October 2018
Application Note
18 / 28
