Microchip PIC32MX 32位MCU多媒体扩展板解决方案

Microchip公司的多媒体扩展板(MEB)采用PIC32系列32位MCU,为PIC32入门板用户,dsPIC33E或PIC24E USB入门板用户提供了灵活解决方案,以开发更高级用户接口.MEB集成了3.2 Color TFT触摸屏QVGA显示器,FCC认证WiFi模块,24位立体声音频代码,三轴加速度计,操纵杆和MicroSD存储器卡插槽,简便和DM320001, DM320003-2, DM320004, DM330012 以及DM240012入门板连接,可用于图像/用户接口,以太网/USB/CAN连接,多任务嵌入式控制以及高性能音频.本文介绍了PIC32MX主要特性,方框图,多媒体扩展板(MEB)主要特性,方框图,电路图,材料清单和PCB元件布局图.

PIC32MX1XX/2XX:32-bit Microcontrollers (up to 128 KB Flash and 32 KB SRAM) with Audio and Graphics Interfaces, USB, and Advanced Analog

Microchip’s 32-bit portfolio with the MIPS® M4K® offers high performance microcontrollers, and all the tools needed to develop your embedded project. With free software, low cost development tools, and pin/peripheral compatibility from 16-bit product lines, PIC32 MCUs shorten time to market and allow your designs to grow. PIC32 gives your application the processing power, memory and peripherals your design needs!

PIC32MX主要特性:

Operating Conditions

• 2.3V to 3.6V, -40ºC to +105ºC, DC to 40 MHz

Core: 40 MHz MIPS32® M4K®

• MIPS16e® mode for up to 40% smaller code size

• 1.56 DMIPS/MHz (Dhrystone 2.1) performance

• 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, Idle)

• Integrated Power-on Reset and Brown-out Reset

• 0.5 mA/MHz dynamic current (typical)

• 20 μA IPD current (typical)

Audio Interface Features

• Data communication: I2S, LJ, RJ, DSP modes

• Control interface: SPI and I2C™

• Master clock:

- Generation of fractional clock frequencies

- Can be synchronized with USB clock

- Can be tuned in run-time

Advanced Analog Features

• ADC Module:

- 10-bit 1.1 Msps rate with one SH

- Up to 10 analog inputs on 28-pin devices and 13 analog inputs on 44-pin devices

• Flexible and independent ADC trigger sources

• Charge Time Measurement Unit (CTMU):

- Supports mTouch™ capacitive touch sensing

- Provides high-resolution time measurement (1 ns)

- On-chip temperature measurement capability

• Comparators:

- Up to three Analog Comparator modules

- Programmable references with 32 voltage points

Timers/Output Compare/Input Capture

• Five General Purpose Timers:

- Five 16-bit and up to two 32-bit Timers/Counters

• Five Output Compare (OC) modules

• Five Input Capture (IC) modules

• Peripheral Pin Select (PPS) to allow function remap

• Real-Time Clock and Calendar (RTCC) module

Communication Interfaces

• USB 2.0-compliant Full-speed OTG controller

• Two UART modules (10 Mbps)

- Supports LIN 2.0 protocols and IrDA® support

• Two 4-wire SPI modules (20 Mbps)

• Two I2C modules (up to 1 Mbaud) with SMBus support

• Peripheral Pin Select (PPS) to allow function remap

• Parallel Master Port (PMP)

Direct Memory Access (DMA)

• Four channels of hardware DMA with automatic data size detection

• Two additional channels dedicated for USB

• Programmable Cyclic Redundancy Check (CRC)

Input/Output

• 15 mA source/sink on all I/O pins

• 5V-tolerant pins

• Selectable open drain, pull-ups, and pull-downs

• External interrupts on all I/O pins

Qualification and Class B Support

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