MSP430 超低功耗 MCU MSP430G2332 混合信号微处理器
信号处理微控制器
集成式低功耗加速器 (LEA) 模块是一种 32 位硬件引擎,专为涉及基于矢量的信号处理(如 FIR、IIR 和 FFT)的操作而设计。这些操作无需 CPU 干预即可完成,并且操作完成时会触发中断。LEA 模块可支持由 CPU 发出的多个命令,并且可执行矢量数学运算,速度最高比运行 CMSIS DSP 库的 Arm Cortex-M0+ MCU 快 40 倍,且功耗较低。
信号处理 MCU 的优点
- 32 位硬件引擎
- 无 CPU 干预 – 在操作完成时触发中断
- 数学运算速度比 Arm Cortex-M0 + MCU 快 40 倍
- 仅需要很少的 DSP 专业知识,并免费提供经优化的 DSP 库
- 基于矢量的信号处理:FIR、IIR、FFT
- 支持实域和复域中的 16 位和 32 位定点运算
特性
- Low Supply Voltage Range: 1.8 V to 3.6 V
- Ultra-Low Power Consumption
- Active Mode: 220 uA at 1 MHz, 2.2 V
- Standby Mode: 0.5 uA
- Off Mode (RAM Retention): 0.1 uA
- Five Power-Saving Modes
- Ultra-Fast Wake-Up From Standby Mode in Less Than 1 us
- 16-Bit RISC Architecture, 62.5-ns Instruction Cycle Time
- Basic Clock Module Configurations
- Internal Frequencies up to 16 MHz With Four Calibrated Frequencies
- Internal Very-Low-Power Low-Frequency (LF) Oscillator
- 32-kHz Crystal
- External Digital Clock Source
- One 16-Bit Timer_A With Three Capture/Compare Registers
- Up to 16 Capacitive-Touch Enabled I/O Pins
- Universal Serial Interface (USI) Supporting SPI and I2C
- 10-Bit 200-ksps Analog-to-Digital (A/D) Converter With Internal Reference, Sample-and-Hold, and Autoscan (MSP430G2x32 Only)
- Brownout Detector
- Serial Onboard Programming, No External Programming Voltage Needed, Programmable Code Protection by Security Fuse
- On-Chip Emulation Logic With Spy-Bi-Wire Interface
方框图
用户指南
MSP430x2xx Family User's Guide (英文內容)
勘误表
MSP430G2332 Device Erratasheet (英文內容)
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