Microchip公司的PIC32系列MCU采用5级流水线MIPS32® M4K® 32位内核,工作频率80MHz,在零等待状态闪存接入时的性能为1.56 DMIPS/MHz (Dhrystone 2.1), MCU工作电压2.3V- 3.6V,具有众多的外设,有两个编程和调试接口,多达16路10位ADC和两个模拟比较器,主要用于超小型图像/用户接口,以太网/USB/CAN/连接,
Microchip公司的PIC32系列MCU采用5级流水线MIPS32® M4K® 32位内核,工作频率80MHz,在零等待状态闪存接入时的性能为1.56 DMIPS/MHz (Dhrystone 2.1), MCU工作电压2.3V- 3.6V,具有众多的外设,有两个编程和调试接口,多达16路10位ADC和两个模拟比较器,主要用于超小型图像/用户接口,以太网/USB/CAN/连接,多任务嵌入控制和高性能音频.本文介绍了PIC32 MCU主要特性,方框图,以及PIC32音频开发板主要特性及主要元件,电路图和PCB布局图.
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!
PIC32 MCU主要特性:
High-Performance 32-bit RISC CPU:
· MIPS32® M4K® 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® 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® 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® 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® 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
PIC32 MCU主要应用:
High Impact Graphics/User Interfaces
Ethernet/USB/CAN/Connectivity
Multitasking Embedded Control
High Performance Audio
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