BL602/604 Datasheet

2.6 Interrupt

BL602/BL604 supports internal RTC wake-up and external interrupts wake-up.

CPU interrupt controller supports stack/nesting, level/pulse, and high/low active.

2.7 Boot

BL602/BL604 supports multiple boot options: UART, SDIO, and Flash.

2.8 Power

PMU (power management unit) manages the power of the entire chip and is divided into active, idle, sleep, and

hibernate power modes. The software can be configured to enter sleep mode and wake-up via RTC timer or EINT to

achieve low-power sleep and accurate wake-up management.

Power down sleep modes are flexible for applications to configure as the lowest power consumption.

2.9 Clock

Clock control unit generates clocks to the core MCU and the peripheral SOC devices. The root clock source can be

XTAL, PLL or RC oscillator. Dynamic power-saved by proper configurations such as sel, div, en, etc. PMU runs at

32kHz clock to keep system low-power in sleep mode.

BL602/604 Datasheet

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