描述 Description

GPF16, a single-chip integrating multi-processors, equips μ'nSP? (16-bit CPU developed by Sunplus Technology) and 16-channel Sound Processor Unit (SPU) for electronic pianos, portable Karaoke or other similar products. With the 16-bit CPU running up to 27MHz, most of the voice compression algorithms can be utilized with MIDI synthesizer applications simultaneously. In addition, it supports the interface with single color LCD panel up to 1024 x 256 dots and standard MIDI interface. Furthermore, it has up to 43 programmable I/Os and 128K-word ROM for electronic instrument applications. Its low power consumption offers the potentials to be used in battery-powered products.The GPF16 provides not only the high-speed performance and high quality of 16 channels synthesizer, but it also integrates several powerful tools into the development system, such as development system with C language, assembly compiler, linker, source debugger functions and project management tools.

特性 Features

? μ'nSP? 16-bit CPU.
? Equips 16-channel Sound Processor Unit (SPU) for MIDI synthesis applications.
? 128K-word ROM for both programs and sound fonts. (tone colors)
? 2K-word working RAM for programming or delay buffers.
? Single color LCD interface up to 1024 x 256 dots.
? 16-bit stereo DAC.
? ADPCM sound fonts real-time decoding logic for each channel.
? 7-bit Master volume control.
? Max. 256 piece-wise slope with repetition for envelope control.
? Variable sampling rates play back for sound fonts (tone colors) wave table samples.
? Beat event IRQ and Envelope IRQ for MIDI event control.
? Channel release control logic.
? Built-in PLL to generate 27MHz internal clock with external 6MHz crystal.
? 32768Hz real time counter.
? Two 16-bit timers/counters. (Programmable and Auto Reload)
? 43 general I/Os can be programmed bit by bit.
? 14 interrupt sources: SPU, Timer, Timebase, External Input, Key wakeup, … etc.
? Key wakeup capability.
? 8 independent channels AD converters with 9-bit resolution.
? UART (MIDI) Interface.
? Built-in watchdog function.
? SPI master interface.
? LVR Function.