N567Hxxx design guide Rev.A10

　　The N567Hxxx is a powerful microcontroller （uC） dedicated to speech and melody synthesis applications. With the help of the embedded 8-bit microprocessor & dedicated H/W， the N567Hxxx can synthesize 8- channel speech+melody simultaneously. The two channels of synthesized speech can be in different kinds of format， for example ADPCM and MDPCM. The N567Hxxx can provide 8-channel high-quality wavetable melody， which can emulate the characteristics of musical instruments， such as piano and violin. The output of speech/melody channels are mixed together through the on-chip digital mixer to produce colorful effects. With these hardware resources， the N567Hxxx is very suitable for high-quality and sophisticated scenario applications. The N567Hxxx provides at most 8 Input and 24 bi-direction I/Os， 384 bytes RAM ， IR carrier， Serial Interface Management （SIM）， Serial Peripheral Interface bus （SPIO） only for N567H000 and more sophisticated applications， such as interactive toys， cartridge toys and final count down function. 6 LED output pins with 64-level control means that numerous combination of RGB colors may result in a versatility of colorful effects. In addition， N567Hxxx also provides PWM mode audio output to save power during playback and Watch Dog Timer （WDT） to prevent latch-up situation occurring.