I was wondering how it was possible to put the MPC5674F into `slow mode` like mentioned in the documentation:
1.2.2 Low-Power Modes
The MPC5674F includes two special modes to allow reduction of application power consumption:
• Stop mode: System clock stopped to all modules including the CPU. Wake-up timer used to restart
the system clock after a predetermined time.
• Slow mode: Allows the device to be run at very low speed (approximately 1 MHz), with modules
(including the PLL) selectively disabled in software.