Microchip PIC32MX5XX系列32位MCU音频开发方案

Microchip公司的PIC32MX5XX/6XX/7Xxx系列产品是集成了图像接口,USB,CAN和以太网以及高达512KB闪存和128KB SRAM的32位MCU,内核为80 MHz/105 DMIPS MIPS32® M4K®,工作电压2.3V-3.6V,工作频率DC到80MHz,具有电源管理,图像和模拟特性,主要用于24位音频录音和播放,USB数字音频,MP3译码以及iPod和iPhone等音频设备.本文介绍了PIC32MX5XX/6XX/7Xxx系列主要特性和框图, MIPS32® M4K®内核处理器主要特性和框图以及PIC32M MCU音频开发板主要特性,电路图,主要元件表和PCB布局图.
32-bit Microcontrollers (up to 512 KB Flash and 128 KB SRAM) with Graphics Interface, USB, CAN, and Ethernet
PIC32MX5XX/6XX/7Xxx系列产品主要特性:
Operating Conditions
• 2.3V to 3.6V, -40℃ to +105℃, DC to 80 MHz
Core: 80 MHz/105 DMIPS MIPS32® M4K®
• MIPS16e® mode for up to 40% smaller code size
• Code-efficient (C and Assembly) architecture
• Single-cycle (MAC) 32x16 and two-cycle 32x32 multiply Clock Management
• 0.9% internal oscillator
• Programmable PLLs and oscillator clock sources
• Fail-Safe Clock Monitor (FSCM)
• Independent Watchdog Timer
• Fast wake-up and start-up
Power Management
• Low-power management modes (Sleep and Idle)
• Integrated Power-on Reset, Brown-out Reset
• 0.5 mA/MHz dynamic current (typical)
• 41 μA IPD current (typical)
Graphics Features
• External graphics interface with up to 34 Parallel Master Port (PMP) pins:
- Interface to external graphics controller
- Capable of driving LCD directly with DMA and internal or external memory
Analog Features
• ADC Module:
- 10-bit 1 Msps rate with one Sample and Hold (S&H)
- 16 analog inputs
- Can operate during Sleep mode
• Flexible and independent ADC trigger sources
• Comparators:
- Two dual-input Comparator modules
- Programmable references with 32 voltage points
Timers/Output Compare/Input Capture
• Five General Purpose Timers:
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