器件名称: YMF781
功能描述: APL-1 Automobile sound PLayer-1
文件大小: 738.69KB 共14页
简 介:YMF781
APL-1
Automobile sound PLayer-1
■Overview
YMF781 (APL-1: hereinafter described as APL-1) is an LSI, integrating synthesizer, ADPCM decoder and a CPU for control in one chip. Various sounds used in common automobiles, motor cycles, and electric appliances, such as alarm sound, operation sound, and melody sound, and pseudo engine sound for an electric car can be generated with a little CPU load. A control CPU incorporated enables APL-1 control by a simple command (API) from the external host CPU. Note: For API, refer to the APL-1 API specifications.
■Features
●CPU is incorporated and enabling controls for synthesizer and other functions by the simple commands. ●Stereo hybrid synthesizer that can generate up to 64 voices simultaneously. ●Time change low pass filter function by AL (Analog Lite) synthesizer is built in. ●ADPCM and PCM stream playback is possible. ●The default tone for FM and Wave Table synthesizer is built in ROM, and registration of a tone to SRAM
is possible.
●Speaker amplifier and equalizer circuit is built in. ●Stereo / monaural analog output terminal is equipped. ●Two control circuits for LED lighting are built in. ●The inspection function is ●APL-1 control interface
The synchronization with contents and compulsive control are also possible. built in as an external memory interface function.
Three interfaces are provided: Clock Sync Serial, Asynchronous Serial (UART) and Command Port (Mode, which identify commands by the changes of bus.) ●Power dow……
