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Block Diagram

Figure 1 shows the block diagram of GR551x.

Figure 1 GR551x block diagram
  • Bluetooth Subsystem
    • A 2.4 GHz transceiver and a digital communication core that supports Bluetooth LE 5.1.
  • MCU Subsystem
    • An ARM® Cortex®-M4F with all the required memories and peripherals.
    • Security cores that can be used for application security and to secure boot implementation.
  • Power Management Unit (PMU) Subsystem
    • All the required power management modules to supply sufficient power to both internal modules and external peripherals.
    • Modules required for ultra-low-power operation in standby mode. Sleep clock (Sleep Osc.), wakeup GPIOs (Wake up), low-power comparator (LP Comp.), and power state controller (Power Sequencer) are used to control the state of different modules.

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