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9150-0125-01 R-4
2.3
BLOCK DIAGRAM
The ST150M Block Diagram illustrates the overall module system.
2.4
CORE COMPONENTS
2.4.1
Nordic SoC
The ST150M contains a Nordic nRF52840, which utilizes an ARM Cortex-M4 processor with integrated
communication protocols including Bluetooth 5.0, NFC, I
Details on the nRF52840 SOC can be found in documentation from Nordic Semiconductor:
https://infocenter.nordicsemi.com/index.jsp?topic=%2Fug_nrf52840_dk%2FUG%2Fdk%2Fintro.html
2.4.2
ASIC satellite transmitter
The ST150M contains a Globalstar proprietary ASIC used for all satellite transmission and related operations
including signal modulation, channelization, and amplification.
Communication is handled over UART interface bus connecting to the MPU.
ST150M User Manual
FIGURE 4 - OVERALL MODULE SYSTEM
C, SPI, UART and Client USB.
2
Confidential & Proprietary Information
14
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