I2S/PCM/AC97 - Codec与CPU间音频的通信协议/接口/总线 DAI - Digital Audio Interface 其实就是I2S/PCM/AC97/PDM/TDM等,实现音频数据在CPU和Codec间的通信 DSP - Digital Signal Processor Mixer - 混音器,将来自不同通道的几种音频模拟信号混合成一种模拟信号 Mute - 消音,屏蔽信号通道 PCM - Pulse Code M...
一、SPI总线 串行外围设备接口SPI(serial peripheral interface)总线技术是Motorola公司推出的一种同步串行接口,Motorola公司生产的绝大多数MCU(微控制器)都配有SPI硬件接口,如68系列MCU。SPI 用于CPU与各种外围器件进行全双工、同步串行通讯。SPI可以同时发出和接收串行数据。它只需四条线就可以完成MCU与各种外围器件的通...
源端输出是原始的高采样率(oversample)调制数据,如Sigma-Delta调制器的输出,而不是像I2S中那样的抽取数据(An I2S output digital microphone includes the decimation filter, so its output is already at a standard audio sample rate that's easy to interface to and process.)。基于PDM接口的应用降低了发送...
Interface(s) Asynchronous I2S-Interface Multichannel I2S-Output Asynchronous Multichannel I2S-Input Digital Control I/O Pins Clock PLL Oscillator and Crystal Specifications Control Interface I2C Bus Interface Device and Subaddresses Internal Hardware Error Handling Description of CONTROL Register Protocol ...
DAI - Digital Audio Interface 其实就是I2S/PCM/AC97/PDM/TDM等,实现音频数据在CPU和Codec间的通信 DSP - Digital Signal Processor Mixer - 混音器,将来自不同通道的几种音频模拟信号混合成一种模拟信号 Mute - 消音,屏蔽信号通道 PCM - Pulse Code Modulation 一种从音频模拟信号转换成数字信号的技术,区别于...
The I2S interface core allows a Wishbone master to stream stereo audio to and from I2S capable devices. 2 Architecture The I2S interface consists of two separate cores, a transmitter and a receiver. Both can operate in either master or slave mode. The I2S bus has 3 signals: ...
interface core allows a Wishbone master to streamstereo audio to and from I2S capable devices. Architecture The I 2Sinterface consists of two separate cores, a transmitter and a receiver. Both canoperate in either master or slave mode. The I 2Sbus has 3 signals: SCK – WS – ...
S Interface 1/17/2005 .opencores Rev 1.0 iv Contents 1... 1 2...
全称及由来:SPI接口的全称是"Serial Peripheral Interface",意为串行外围接口,是Motorola首先在其MC68HCXX系列处理器上定义的。 使用方法:SPI接口主要应用在EEPROM,FLASH,实时时钟,AD转换器,还有数字信号处理器和数字信号解码器之间。 工作模式:SPI接口是以主从方式工作的,这种模式通常有一个主器件和一个或多个从器件...
I2S Interface Spec I2S Interface Specification Author: Geir Drange gedra@opencores.org Rev. 1.0 January 17, 2005