Developing Modem Applications

 

 

Table 5-3. Port Arbitration Behavior (continued)

 

 

 

 

 

Control

Data Port

Port Behavior

 

Port Active

Active

 

 

 

 

 

 

Yes

Yes

All AT commands are processed on the Control port. The

 

 

 

Data port is used only for the transfer of packet or

 

 

 

asynchronous data resulting from a data call.

AT commands received on the Data port are ignored.

■ A packet data call can be initiated on the Data port by sending a PPP packet; for details, see Packet No Dial ($QCPKND) on page 6-50.

■ ATD#777 received on the Control port initiates a packet data call on the Data port. If a non-data call (e.g., Markov, Loopback) is already active when the call is attempted, a BUSY result is returned. If a data call is active, an ERROR result is returned.

■ ATD<phone number> received on the Control port initiates an asynchronous data call on the Data port. If a non-data call (e.g., Markov, Loopback) is already active when the call is attempted, a BUSY result is returned. If a data call is active, an ERROR result is returned.

■ The ATD command received on the Control port with

#627568 (Markov test call) or #56672225 (Loopback test call) dial strings initiate a call if a call is not already active. If a non-data call is already active when the call is attempted, a BUSY result is returned. If a data call is active, an ERROR result is returned.

■ Port configuration commands apply to the Data port and Control port as defined in Port(s) Affected by AT Commands on page 5-13.

■ Online-Command mode is not supported on the Data port.

■ The online escape sequence “+++” surrounded by guard time is ignored on both ports.

■ ATH received on the Control port terminates an active data call or special test call. It returns OK whether or not a call is active.

■ ATO received on the Control port returns OK if a call is active; otherwise, it returns NO CARRIER.

80-99208-1 Rev. D

5-11

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Qualcomm GSP-1620 specifications Developing Modem Applications, Port Arbitration Behavior
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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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