Description:True Low Power Platform (as low as 66 µA/MHz, and 0.57 µA for RTC + LVD), 1.6 V to 5.5 V operation, 16 to 512 Kbyte Flash, 41 DMIPS at 32 MHz, for General Purpose Applications - 64-pin plastic LFQFP
The recommended POR timing is to hold the reset pin low for at least 10 clock cycles of the internal oscillator (typically 10-15 ms) to ensure a reliable reset.
To configure the clock system, set the clock source to the desired oscillator (e.g., HOCO, LOCO, or EXCLK), and then configure the clock dividers (CKD, CKS, and PLL) to achieve the desired clock frequency. Refer to the datasheet for specific register settings and clock tree diagrams.
The maximum allowed clock frequency for the CPU is 32 MHz, while peripherals like UART, SPI, and I2C have specific maximum clock frequencies ranging from 1 MHz to 16 MHz, depending on the peripheral and operating conditions.
To implement a reliable WDT, configure the WDT clock source, set the timeout period, and enable the WDT. Make sure to periodically refresh the WDT counter to prevent resets. Refer to the datasheet for specific register settings and WDT operation.
Key considerations include selecting the appropriate power modes (e.g., sleep, stop, and low-power modes), configuring the power management registers, and implementing power gating for peripherals. Additionally, consider using the built-in low-power modes and voltage regulators to minimize power consumption.
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