Integrator’s Reference Manual

Note

For DTR signal timing requirements, see Changing Data and Control

Port Configuration on page 7-8.

 

Port Use During Power On and Power Off

The Data and Control ports provide a feedback mechanism to inform the user when power on and power off are complete. The modem powers on when either or both of the ports’ DTR signals are asserted. The DSR signal is asserted on either or both active ports to inform the user that the modem has completed its start-up sequence and is ready to process AT commands.

When the DTR signals of both ports are de-asserted for approximately one second, the modem begins its shutdown sequence. When this is complete, the modem powers off and the ports’ DSR signals are de-asserted. This informs the user that power may be removed, which may be required in battery-powered applications.

The above discussion assumes that the Diagnostic port is not active. This port’s DTR signal does affect power on and power off, but the port provides no user feedback. The Diagnostic port is designed for development and service-programming use only.

Note

For complete details of the power on and power off process, see

Power-On and Power-Off on page 7-18.

 

Globalstar Satellite Service

The QUALCOMM Globalstar GSP-1620 Satellite Data Modem offers full duplex (FDX) transmit and receive capabilities at 9600 bps via the Globalstar satellite constellation, and uses QUALCOMM’s CDMA digital technology for reliability.

The Globalstar Air Interface (GAI) is based on a modified (proprietary) IS-95A standard adapted for Mobile Satellite System (MSS) operations:

•Forward Link (Modem Receive): 2484.39 to 2499.15 MHz

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Qualcomm GSP-1620 specifications Globalstar Satellite Service, Port Use During Power On and Power Off
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GSP-1620 specifications

Qualcomm GSP-1620 is a powerful, cutting-edge SoC (System on Chip) that is tailored for the demands of modern mobile and embedded applications. Designed to deliver high performance, energy efficiency, and advanced connectivity, the GSP-1620 stands out in the competitive landscape of processor solutions.

One of the main features of the GSP-1620 is its multi-core architecture, which facilitates simultaneous processing of multiple tasks. This architecture ensures enhanced multitasking capabilities, allowing devices to run complex applications smoothly without compromising performance. The GSP-1620 integrates Qualcomm's latest Kryo CPU technology, which optimizes performance while maintaining lower power consumption.

The GSP-1620 excels in graphics performance, powered by Adreno GPU technology. This integration enables rich visual experiences, making it ideal for gaming, augmented reality, and immersive multimedia applications. The GPU's capabilities allow for high frame rates and stunning graphics, ensuring that users enjoy a premium visual experience.

In terms of connectivity, the GSP-1620 supports advanced wireless technologies, including 5G, Wi-Fi 6, and Bluetooth 5. With these capabilities, users can expect ultra-fast data speeds, low latency, and improved networking performance. The integration of Qualcomm’s Snapdragon X55 modem enhances the SoC's capability to deliver seamless connectivity in various environments, whether indoors or outdoors.

Moreover, the GSP-1620 features cutting-edge AI and machine learning capabilities, enabled by Qualcomm’s Hexagon DSP technology. This allows for efficient processing of AI tasks, supporting functionalities such as voice recognition, image processing, and real-time translation. It makes the GSP-1620 suitable for applications in smart devices, automotive solutions, and industrial IoT.

Security is a priority in the design of the GSP-1620. The SoC incorporates hardware-based security features that protect sensitive data and applications, ensuring robust defense against cyber threats. This is vital for applications requiring high levels of security, such as mobile payments and confidential communications.

Lastly, the GSP-1620 is designed with scalability in mind. Its modular architecture allows manufacturers to customize the chipset according to specific needs, making it a versatile solution for a broad range of devices, from smartphones and tablets to wearables and embedded systems.

In summary, Qualcomm GSP-1620 combines high-performance processing, advanced graphics capabilities, sophisticated connectivity options, AI support, and robust security features. With these characteristics, it sets a new standard for mobile and embedded platforms, driving innovation in a variety of industries.
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