描述 Description

The GPFA120C1, a fully CMOS integrated circuit, adopts the advanced design and processing technology to integrate an 8-bit RISC processor, an 8-channel music synthesizer, 128K bytes program ROM, 224 bytes working SRAM, timer/counter and I/Os interface in a single chip.? The sound processing logic is a unique approach to implement high quality melody effect and to simulate all types of musical instruments by programming the tone ROM and controlling the envelope slope to each channel.? Each channel can also be defined as a speech channel to generate percussion, animal sound, gunshot, explosion, and many PCM-based special sound effects along with the major music rhythm.

特性 Features

? 8-bit microprocessor
? 8 channel speech / melody
? Operating voltage: 2.4V - 5.5V
? 14 general inputs / outputs
? 9 input pins, 1 output pin
? Two audio output pins
? Watchdog mode
? 224 bytes SRAM
? 128K bytes program ROM
? Power down mode
? Stereo function
? Crystal OSC or ROSC, up to 14.318MHz.
? Power ON reset
? Volume control
? Key wakeup capability
? Low voltage reset