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Microchip PIC32M795F512音频开发方案 音频视频显示 免费猫

发布时间:2020-02-17 13:18:53 阅读: 来源:装载机配件厂家

Microchip PIC32M795F512音频开发方案 - 音频/视频/显示 - 电子工程网

Microchip公司的PIC32M7xx系列是高性能USB,CAN和以太网32位闪存MCU,采用MIPS M4K内核,具有5级流水线,80MHz最高工作频率,1.56 DMIPS/MHz (Dhrystone 2.1),单周期乘法和除法单元,工作电压2.3V 到3.6V,64K到512KB闪存,16KB到128KB SRAM,主要用在超小型图像/用户接口,以太网/USB/CAN连接,多任务嵌入控制和高性能音频设备.本文介绍了PIC32M7xx系列主要特性,方框图,PIC32 MCU音频开发板主要特性,电路图和PCB元件布局图.

Microchip’s 32-bit portfolio with the MIPS reg; M4K reg; 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!

PIC32M7xx系列主要特性:

High-Performance 32-bit RISC CPU:

MIPS32 reg; M4K reg; 32-bit core with 5-stage pipeline

80 MHz maximum frequency

1.56 DMIPS/MHz (Dhrystone 2.1) performance at zero Wait state Flash access

Single-cycle multiply and high-performance divide unit

MIPS16e reg; mode for up to 40% smaller code size

Two sets of 32 core register files (32-bit) to reduce interrupt latency

Prefetch Cache module to speed execution from Flash

Microcontroller Features:

Operating voltage range of 2.3V to 3.6V

64K to 512K Flash memory (plus an additional 12 KB of Boot Flash)

16K to 128K SRAM memory

Pin-compatible with most PIC24/dsPIC reg; DSC devices

Multiple power management modes

Multiple interrupt vectors with individually programmable priority

Fail-Safe Clock Monitor mode

Configurable Watchdog Timer with on-chip Low-Power RC oscillator for reliable operation

Peripheral Features:

Atomic SET, CLEAR and INVERT operation on select peripheral registers

Up to 8-channels of hardware DMA with automatic data size detection

USB 2.0-compliant full-speed device and

On-The-Go (OTG) controller:

- Dedicated DMA channels

10/100 Mbps Ethernet MAC with MII and RMII interface:

- Dedicated DMA channels

CAN module:

- 2.0B Active with DeviceNet addressing support

- Dedicated DMA channels

3 MHz to 25 MHz crystal oscillator

Peripheral Features (Continued):

Internal 8 MHz and 32 kHz oscillators

Six UART modules with:

- RS-232, RS-485 and LIN support

- IrDA reg; with on-chip hardware encoder and decoder

Up to four SPI modules

Up to five I2C modules

Separate PLLs for CPU and USB clocks

Parallel Master and Slave Port (PMP/PSP) with 8-bit and 16-bit data, and up to 16 address lines

Hardware Real-Time Clock and Calendar (RTCC)

Five 16-bit Timers/Counters (two 16-bit pairs combine to create two 32-bit timers)

Five Capture inputs

Five Compare/PWM outputs

Five external interrupt pins

High-speed I/O pins capable of toggling at up to 80 MHz

High-current sink/source (18 mA/18 mA) on all I/O pins

Configurable open-drain output on digital I/O pins

Debug Features:

Two programming and debugging Interfaces:

- 2-wire interface with unintrusive access and real-time data exchange with application

- 4-wire MIPS reg; standard enhanced Joint Test Action Group (JTAG) interface

Unintrusive hardware-based instruction trace

IEEE Standard 1149.2 compatible (JTAG) boundary scan

Analog Features:

Up to 16-channel, 10-bit Analog-to-Digital Converter:

- 1 Msps conversion rate

- Conversion available during Sleep and Idle

Two Analog Comparators

PIC32MX7系列应用:

High Impact Graphics/User Interfaces

Ethernet/USB/CAN/Connectivity

Multitasking Embedded Control

High Performance Audio

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