The recommended power-up sequence is to apply VCC first, followed by VDD, and then the clock signal. This ensures that the internal voltage regulators are properly initialized and the device is configured correctly.
To configure the MPC9351FA for low-power operation, set the Power Management Control Register (PMC) to enable the low-power mode. Additionally, reduce the clock frequency, disable unused peripherals, and use the dynamic voltage and frequency scaling (DVFS) feature to optimize power consumption.
The maximum operating temperature range for the MPC9351FA is -40°C to 125°C. However, it's recommended to operate the device within the commercial temperature range of 0°C to 70°C for optimal performance and reliability.
The MPC9351FA has a built-in watchdog timer (WDT) that can be enabled and configured through the Watchdog Timer Control Register (WTCR). Set the WDT timeout period, enable the WDT, and implement a reset mechanism to restart the device in case of a fault or hang.
The maximum clock frequency supported by the MPC9351FA is 266 MHz. However, the actual clock frequency may be limited by the specific application, board design, and operating conditions.
MPC9351FA datasheet
by Freescale Semiconductor
