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MCU微控制器相關功能筆記
⬛ MCU:微控制器(Microcontroller Unit)
一顆完整的MCU,會將CPU、RAM、ROM、I/O 或A/D等周邊關於記憶與運算功能整合在一起,簡單來說,MCU已經是一個微型的電腦。
⬛ MCU常用縮寫
- ACMP:Analog Comparator Controller
- ADC:Analog-to-Digital Converter
- AES:Advanced Encryption Standard
- APB:Advanced Peripheral Bus
- AHB:Advanced High-Performance Bus
- BOD:Brown-out Detection
- BOR:Brown-Out Detection/Reset. 電壓低落重置. 簡體中文的技術資料中寫成「欠壓復位」,復位、重置所指的意思都是「重新開機」。有的業者稱BOR為VBO(Voltage Brown-Out)或BOD(Brown Out Detector)
- CAN: Controller Area Network
- DAP: Debug Access Port
- DES: Data Encryption Standard
- EBI: External Bus Interface
- EPWM: Enhanced Pulse Width Modulation
- FIFO:First In, First Out
- FMC:Flash Memory Controller
- FPU:Floating-point Unit
- GPIO:General-Purpose Input/Output
- HCLK:The Clock of Advanced High-Performance Bus
- HIRC:22.1184 MHz Internal High-Speed RC Oscillator
- HXT:4~24 MHz External High-Speed Crystal Oscillator
- IAP: In-Application Programming
- ICP: In-Circuit Programming
- ISP:In System Programming
- LDO:Low Dropout Regulator
- LIN:Local Interconnect Network
- LIRC:10 kHz internal low-speed RC oscillator (LIRC)
- LVR:Low Voltage Reset. 低電壓重置。 VDD 小於檢測電壓 VLVR時,系統會產生晶片低電壓重置,並一直持續到工作電壓 VDD 高於檢測電壓 VLVR後再結束重置模式,並恢復運作。
- MPU:Memory Protection Unit
- NVIC:Nested Vectored Interrupt Controller
- PCLK:The Clock of Advanced Peripheral Bus
- PDMA:Peripheral Direct Memory Access PLL Phase-Locked Loop
- PWM:Pulse Width Modulation
- POR:BOR是電壓過低時對MCU發出重置,相反的POR(Power-On Reset)是在電壓高於設定的位準時才對MCU發出重置,一般而言,控制系統剛送電啟動時,供電電壓會逐步提升,這時POR就會發生作用。
- QEI:Quadrature Encoder Interface
- SDIO:Secure Digital Input/Output
- SPI:Serial Peripheral Interface
- SPS:Samples per Second
- TDES:Triple Data Encryption Standard
- TMR:Timer Controller
- UART:Universal Asynchronous Receiver/Transmitter
- UCID:Unique Customer ID
- USB:Universal Serial Bus
- WDT:Watchdog Timer. 看門狗計時器
- WWDT:Window Watchdog Timer
參考資料
http://www.mcufan.com/article/2006mcutrand.htm
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