Clock Source - Freescale Semiconductor MPC5604P User Manual

Design Consideration
Figure 4. MPC5604P Block Diagram
4.2

Clock Source

The MPC5604P uses external 8.00 MHz crystal oscillator mounted on the board and internal PLL0 to
multiply the input frequency, to achieve its 64 MHz maximum operating frequency. The second PLL1 is
used to achieve suitable frequency (120MHz) for internal Motor control, SWG, and communication
modules. The MPC5604P can also use internal 16 MHz RC oscillator as clock source, in this mode
FlexRAY protocol clock does not support IRCOSC as a clock source.
MPC5604P Controller Board User's Guide, Rev. 0
20 Freescale