Описание
The AT32UC3A3 is a complete System-On-Chip microcontroller based on the AVR32 UC RISC processor running at frequencies up to 84MHz. 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 AT32UC3A3 incorporates on-chip Flash and SRAM memories for secure and fast access. 64 KBytes of SRAM are directly coupled to the AVR32 UC for performances optimization. Two blocks of 32 Kbytes SRAM are independently attached to the High Speed Bus Matrix, allowing real ping-pong management. The Peripheral Direct Memory Access Controller (PDCA) enables data transfers between peripherals and memories without processor involvement. The PDCA drastically reduces processing overhead transferring continuous and large data streams. The Power Manager improves design flexibility and security: the on-chip Brown-Out Detector monitors the power supply, the CPU runs from the on-chip RC oscillator or from one of external oscillator sources, a Real-Time Clock and its associated timer keeps track of the time.
- High Performance, Low Power 32-bit AVR Microcontroller
- Compact Single-Cycle RISC Instruction Set Including DSP Instruction Set
- Read-Modify-Write Instructions and Atomic Bit Manipulation
- Performing up to 1.51DMIPS/MHz
- Up to 126 DMIPS Running at 84MHz from Flash (1 Wait-State)
- Up to 63 DMIPS Running at 42MHz from Flash (0 Wait-State)
- Memory Protection Unit
- Multi-Layer Bus System
- High-Performance Data Transfers on Separate Buses for Increased Performance
- 8 Peripheral DMA Channels (PDCA) Improves Speed for Peripheral Communication
- 4 generic DMA Channels for High Bandwidth Data Paths
- Internal High-Speed Flash
- 256KBytes, 128KBytes, 64KBytes versions
- Single-Cycle Flash Access up to 36MHz
- Prefect Buffer Optimizing Instruction Execution at Maximum Speed
- 4 ms 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
- 64KBytes Single-Cycle Access at Full Speed, Connected to CPU Local Bus
- 64KBytes (2x32KBytes with independent access) on the Multi-Layer Bus System
- 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),
- Watchdog Timer, Real-Time Clock Timer
- External Memories
- Support SDRAM, SRAM, NandFlash (1-bit and 4-bit ECC), Compact Flash
- Up to 66 MHz
- External Storage device support
- Multimedia Card (MMC V4.3), Secure-Digital (SD V2.0), SDIO V1.1
- CE-ATA V1.1, FastSD, SmartMedia, Compact Flash
- Memory Stick: Standard Format V1.40, PRO Format V1.00, Micro
- IDE Interface
- Universal Serial Bus (USB)
- High-Speed USB 2.0 (480Mbit/s) Device and Embedded Host
- Flexible End-Point Configuration and Management with Dedicated DMA Channels
- On-Chip Transceivers Including Pull-Ups
- One 8-channel 10-bit Analog-To-Digital Converter, multiplexed with Digital IOs.
- Two Three-Channel 16-bit Timer/Counter (TC)
- Four Universal Synchronous/Asynchronous Receiver/Transmitters (USART)
- Fractionnal Baud rate
- Support for SPI and LIN
- Optionnal support for IrDA, ISO7816, Hardware Handshaking, RS485 interfaces and Modem Line
