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    一些芯片模块简称的含义

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    • xiaowenge
      DOT小文哥 LV 8 last edited by

      CPU: Central Processing Unit,中央处理器
      PSRAM: pseudo static ram
      Nan: nand flash,与非型闪存
      Nor: nor flash,或非型闪存
      eMMC: Embedded Multi Media Card
      PMU: Power Management Unit
      vBat: Battery Voltage
      CSI: Camera Serial Interface
      RF: Ratio Frequency
      TDM: Timing Division Multiplexing
      Audio Codec: 音频编解码器
      I2S/PCM: Inter-IC Sound/Pulse Code Modulation
      DMIC: Digital MIC
      SPDIF/OWA: Sony/Philips Digital Interface One Wire Audio
      MAD: Mac Activity detector
      AEC: adaptive echo cancellation, 自适应回声消除
      CPUs: small CPU,通常说的小核,为主核提供辅助控制,如主核休眠时的唤醒控制等
      CCU/PLL: CCU是旧的叫法,现在称为CCMU(Clock Control management unit)/Phase-Locked Loop
      RTC: Real Time Clock
      Timer: 定时器
      DMA: Direction memory access
      PSI: Peripheral System Interconnect
      GIC: Generic Interrupt Controller
      SS/CE: Security System/Crypto Engine
      Trustzone : 安全空间
      eFuse: Electrical Fuse, a one-time programmable memory
      SRAM: Static Random Access Memory
      BROM: Boot rom
      LEDC: LED Controller
      USB: Universal Serial Bus
      GMAC: Giga Medium Access Control
      UART: Universal Asynchronous Receiver Transmitter
      SPI: Serial Peripheral Interface
      TWI: Two Wire Interface,全志喜欢叫这个名字,其实就是I2C
      RSB: Reduced serial bus
      THS: Thermal Sensor
      PWM: Pulse width modulation
      LRADC: Low Resolution ADC
      GPADC: General Purpose ADC
      IR: Infrared Radiation
      GPIO: General Purpose Input Output
      PMIC: Power Management IC

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