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Ualcomm Releases 9205 Modem Chip: Designed For The Internet Of Things(4)

- Jan 01, 2019 -

What are the highlights of the product? Ma Jinwu said that Qualcomm 9205 has six highlights, namely commercial multi-mode multi-frequency solution; the highest integration in its class; integrated GNSS receiver; hardware-based security foundation; ultra-low power consumption, long life support And powerful application processors and software suites to support applications and services.

According to reports, Qualcomm integrated the positioning function into the MDM 9205 chip, supporting GPS, GLONASS, Beidou and Galileo satellite navigation systems, and only need GPS antenna to carry out GPS positioning. At present, many manufacturers need to add a GPS chip in addition to the IoT chip to support the positioning function, and Qualcomm has integrated GNSS into the chip.

At the same time, Qualcomm will reduce the size of the MDM 9205 by 50% while concentrating more functions. It is the most integrated in its class, including hardware, modules, RF devices, etc., and is more cost-effective. In addition, compared to its predecessor, the MDM 9205 achieves up to 70% reduction in power consumption in idle mode + ultra-low system-level cutoff voltage to support a wide range of battery types, while advanced battery management extends battery life.

In terms of security, the Qualcomm 9205 adds security considerations from the design and hardware aspects of the chip. First, a one-time programmable e-fuse is provided. The e-fuse is a fuse that can be turned off at the factory to turn off all debug ports, preventing tampering with the software in the product through debug interfaces and debugging tools. Second, the chip supports a security boot. In the process of each step of code execution, Qualcomm will do cross-validation to check whether the code has been tampered with. If it is found to have been tampered with, the entire execution will stop. In addition, Qualcomm also provides a trusted execution environment. "We will put some important information, data and operations in a trusted execution environment. The trusted execution environment is a hardware isolation area in our chip. Any software outside will want to read this area. The firewall is blocked and cannot be read.” Ma Jinwu said.

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