GPT8340A中文资料46 TOUCH IO with SPU数据手册Generalplus规格书

描述 Description

The GPT8340A, an 8-bit microprocessor developed by Generalplus, features 1M bytes Mask ROM, 1.5K bytes working RAM, 512 bytes AUX RAM, 22 I/Os, two 16-bit timers, two SPI interfaces, a 14-bit DAC with push-pull amplifier for driving speaker directly. The GPT8340A is designed to operate over a wide voltage, ranging from 2.3V through 5.5V. The Low Voltage Reset function keeps system operating properly when power drops below certain level. The GPT8340A is incorporated a high performance SPU voice engine to implement 8-channel ADPCM/PCM high quality voice and one 14-bit DAC with push-pull amplifier to drive speaker directly. Its large memory area allows user to store both program and audio data in one place. A Serial Peripheral Interface (SPI) controller is also built in GPT8340A to facilitate communication between devices. For more information about GPT8340A's feature list, please refer to the following section.

特性 Features

• 8-bit micro-processor
• 1.5K bytes SRAM
• Operating voltage: 2.3V – 5.5V
• 12.0MHz @ 2.7V – 5.5V
• Programmable CPU clock: /2, /4, /8, /16, /32, /64 and /128 clock frequency
• 23 IRQs & 4 NMI Interrupts
• SPU(Sound Processing Unit) engine with 8 voice channels
• Supports 4/5 bit ADPCM and 8/16 bit PCM data format
• Supports special tag such as Silence Tag, Event tag
• One software channel with noise filter to play high quality sound.
• Low Voltage Reset
• Dedicated I/Os: PA[7:0], PB[7:0], PC[5:0], PD[7:0], PE[7:0], PF[7:0]
• Key wakeup/interrupt function
• Built-in R-oscillator (external resistor is needed) l or PLL for system operating clock
• Two 16-bit reloadable timer/counters
• 14-bit DAC with push-pull amplifier for driving speaker directly
• Hardware PWMIO
• Powerful 8-ch Sound Processing Unit (SPU)
• 8-voice polyphony
• Supports PCM/ADPCM tone-color table