Описание
The AT32UC3A is a complete System-On-Chip microcontroller based on the AVR32 UC RISC processor running at frequencies up to 66 MHz AVR32 UC is a high-performance 32-bit RISC microprocessor core, designed for cost-sensitive embedded applications, with particular emphasis on low power consumption, high code density and high performance. The processor implements a Memory Protection Unit (MPU) and a fast and flexible interrupt controller for supporting modern operating systems and real-time operating systems. Higher computation capabilities are achievable using a rich set of DSP instructions. The AT32UC3A incorporates on-chip Flash and SRAM memories for secure and fast access. For applications requiring additional memory, an external memory interface is provided on AT32UC3A0 derivatives.
- High Performance, Low Power 32-Bit Microcontroller
- Compact Single-cycle RISC Instruction Set Including DSP Instruction Set
- Read-Modify-Write Instructions and Atomic Bit Manipulation
- Performing 1.49 DMIPS / MHz Up to 91 DMIPS Running at 66 MHz from Flash (1 Wait-State) Up to 49 DMIPS Running at 33MHz from Flash (0 Wait-State)
- Memory Protection Unit
- Multi-hierarchy Bus System
- High-Performance Data Transfers on Separate Buses for Increased Performance
- 15 Peripheral DMA Channels Improves Speed for Peripheral Communication
- Internal High-Speed Flash
- 256K Bytes Versions
- Single Cycle Access up to 33 MHz
- Prefect Buffer Optimizing Instruction Execution at Maximum Speed
- 4ms Programming Time and 8ms Full-Chip Erase Time
- 100,000 Write Cycles, 15-year Data Retention Capability
- Flash Security Locks and User Defined Configuration Area
- Internal High-Speed SRAM, Single-Cycle Access at Full Speed
- 64K Bytes (256KB Flash)
- External Memory Interface on AT32UC3A0 Derivatives
- SDRAM / SRAM Compatible Memory Bus (16-bit Data and 24-bit Address Buses)
- Interrupt Controller
- Auto vectored Low Latency Interrupt Service with Programmable Priority
- System Functions
- Power and Clock Manager Including Internal RC Clock and One 32KHz Oscillator
- Two Multipurpose Oscillators and Two Phase-Lock-Loop (PLL) allowing Independant CPU Frequency from USB Frequency
- Watchdog Timer, Real-Time Clock Timer
- Universal Serial Bus (USB)
- Device 2.0 Full Speed and On-The-Go (OTG) Low Speed and Full Speed
- Flexible End-Point Configuration and Management with Dedicated DMA Channels
- On-chip Transceivers Including Pull-Ups
- Ethernet MAC 10/100 Mbps interface
- 802.3 Ethernet Media Access Controller
- Supports Media Independent Interface (MII) and Reduced MII (RMII)
- One Three-Channel 16-bit Timer/Counter (TC)
- Three External Clock Inputs, PWM, Capture and Various Counting Capabilities
- One 7-Channel 16-bit Pulse Width Modulation Controller (PWM)
- Four Universal Synchronous/Asynchronous Receiver/Transmitters (USART)
- Independant Baudrate Generator, Support for SPI, IrDA and ISO7816 interfaces
- Support for Hardware Handshaking, RS485 Interfaces and Modem Line
- Two Master/Slave Serial Peripheral Interfaces (SPI) with Chip Select Signals
- One Synchronous Serial Protocol Controller
- Supports I2S and Generic Frame-Based Protocols
- One Master/Slave Two-Wire Interface (TWI), 400kbit/s I2C-compatible
- One 8-channel 10-bit Analog-To-Digital Converter
- 16-bit Stereo Audio Bitstream
- Sample Rate Up to 50 KHz
