Although there are many models of MCUs on the market, they mainly focus on ARM architecture, MIPS architecture and proprietary architecture. They currently have their own unique selling points and markets. ARM has gradually occupied the market in mobile phones, portable devices and hard disks. Mainstream status, MIPS is mainly known in the field of multimedia applications and network communications. Its own architecture is mainly characterized by low power consumption, but the MCUs of the three architectures are aimed at each other's mainstream market.
When choosing between general-purpose and proprietary architectures, the current status quo of most international MCU vendors is to use the common architecture to dig deep into existing markets or expand into new areas while maintaining a proprietary architecture MCU market. Such as Freescale (Coldfire & Kinetis ARM MCUs), Microchip (PIC & MIPS PIC32 MCUs), ADI's proprietary architecture Blackfin series, NXP ARM core-based LPC series and Atmel (AVR & AT91SAM ARM MCUs).
As a local company, Taiwan Xintang Technology is also in the forefront. In the short-term development of the NuMicro Cortex-M0 MCU series in 2009, it was released in 2011. A 32-bit Cortex-M0 MCU for the core "Mini51 series", the price is less than 0.5 US dollars. The reason for switching to the general architecture, Mr. Huang Ri'an, manager of the marketing department of Xintang Technology Micro Control Products, said: "Each supplier has its own closed CPU architecture. Under such circumstances, there will be two problems: the first is Consumers are easily locked by suppliers, because the choice of other MCUs is necessary to learn new MCUs and development tools and environment from the beginning. Second, the cost of suppliers is very high, and the price of chips cannot be reduced. Suppliers must not only The development of chips, but also a considerable amount of human and material resources to invest in the design and production of the development environment and tools.
Saving development time and costs is one reason, and companies are more focused on helping to expand into new areas. Zeng Jintao, Asia Pacific Marketing Manager of Freescale's Industrial and Multimarket Microcontrollers Division, said in an interview: "Freescale's proprietary architecture Coldfire series accounts for approximately 20% of its application market and is now based on the ARM Cortex M4 core. Authorized to develop the new Kinetis series, specializing in the general market, such as consumer electronics, smart meters, intelligent building control, medical electronics market, etc. In many new applications, need to add auxiliary processing functions, and new DSP in the ARM Cortex M4 core Floating-point computing power, the MCU gradually extended to the MPU, just in line with this kind of application. Therefore, this year, Freescale combined with the advantages of the Coldfire series in the field of industrial control, the Kinetis series as the focus of promotion."
In addition to these, another important point is that the general architecture chosen must match the positioning of your product. “Most of the MCUs in the current MCU industry are built with proprietary architectures that are developed and maintained internally by MCU vendors. Maintaining these architectures is expensive and resource intensive, so many companies should consider compliance with the industry transition to 32-bit. "The industry standard architecture for product positioning," said Ian Anderton, strategic marketing manager at MIPS Technologies. "As more and more companies see the benefits of applying third-party architectures to reduce development costs, they should consider adopting the MIPS architecture." .
Anderton also compared MIPS products with ARM: "Compared to ARM's Cortex-M series, we are able to offer superior performance, lower power consumption and more advanced features. The efficiency and availability of our cores Configurability provides a "triple play" solution for MCU and embedded controller designers: a single MIPS32 M4K/M14K core offers higher performance and more features than the ARM Cortex-M3, M0 or M1, and is an alternative These three cores. In addition, the M14K core can achieve a variety of different performance, power and cost balances by choosing different optimization directions and manufacturing processes. Compared to the Cortex-M3, it can be implemented in a smaller configuration. Area and lower power consumption."
For most MCU vendors, perhaps when it comes to re-station, in addition to considering performance and cost, product positioning is also an important consideration. Recently, MIPS Technologies licensed MIPS32 and MIPS64 architecture technologies to SoC developers including Toshiba and NEC for the development of MIPS-based, application-oriented MCU products. The ARM camp has also added a new army. Infineon and Silicon Labs have launched their respective MCU products based on Cortex-M4 and Cortex-M3. It seems that the diversified MCU market is still your singer, and I am on the scene.
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