ARM Cortex-M MCU 准架构.pdf

Cortex-M – The Standard Architecture for MCU Applications Andy Luo Embedded Marketing Manager Andy.luo@ 1 Market Challenges More features at lower cost Increasing connectivity (e.g. USB, Ethernet, 802.15, NFC) Drive for better code reuse Analog devices with increasing processing and communication Energy efficiency Wireless sensors, motor control, metering 8/16-bit running out of performance headroom As complexity rises so does frequency and memory requirement 2 Market Migration to 32-bit Gathering Momentum Algorithm complexity increasing  Integration of multiple functionality  into single processing subsystem  “Black box” systems starting to  include networking connectivity Energy efficiency becoming  increasingly important Assembler programming replaced  with C 3 Cortex-M Processor Family Seamless embedded architecture Spanning cost and performance points ARM Cortex-A Series: Applications processors for feature-rich OS and user applications ARM Cortex-R Series: Embedded processors for real-time signal processing and control applications ARM Cortex-M Series: