描述 Description

The Atmel? | SMART SAMA5D3 series is a high-performance, power-efficient embedded MPU based on the ARM? Cortex?-A5 processor, achieving 536 MHz with power consumption levels below 0.5 mW in low-power mode. The device features a floating point unit for high-precision computing and accelerated data processing, and a high data bandwidth architecture. It integrates advanced user interface and connectivity peripherals and security features.

The SAMA5D3 series features an internal multi-layer bus architecture associated with 39 DMA channels to sustain the high bandwidth required by the processor and the high-speed per iphera l s. The device offers support for DDR2/LPDDR/LPDDR2 and MLC NAND Flash memory with 24-bit ECC.

特性 Features

● Core

? ARM Cortex-A5 Processor with ARMv7-A Thumb-2 Instruction Set

? CPU Frequency up to 536 MHz

? 32 Kbyte Data Cache, 32 Kbyte Instruction Cache,

Virtual Memory System Architecture (VMSA)

? Fully Integrated MMU and Floating Point Unit (VFPv4)

● Memories

? One 160 Kbyte Internal ROM Single-cycle Access at System Speed,

Embedded Boot Loader: Boot on 8-bit

NAND Flash, SDCard, eMMC, serial DataFlash, selectable Order

? One 128 Kbyte Internal SRAM, Single-cycle Access at System Speed

? High Bandwidth 32-bit Multi-port Dynamic RAM Controller supporting 512 Mbyte 8 bank

32-bit or 2x16-bit SDRAM devices

? Independent Static Memory Controller with datapath scrambling and

SLC/MLC NAND Support with up to 24-bit

Error Correction Code (PMECC)

● System running up to 166 MHz

? Reset Controller, Shutdown Controller, Periodic Interval Timer,

Watchdog Timer and Real-time Clock

? Boot Mode Select Option, Remap Command

? Internal Low-power 32 kHz RC Oscillator and Fast 12 MHz RC Oscillator

? Selectable 32768 Hz Low-power Oscillator and 12 MHz Oscillator

? One 400 to 1000 MHz PLL for the System and one PLL at 480 MHz optimized

for USB High Speed

? 39 DMA Channels including two 8-channel 64-bit Central DMA Controllers

? 64-bit Advanced Interrupt Controller

? Three Programmable External Clock Signals

? Programmable Fuse Box with 256 fuse bits

(of which 192 are available for users)

● Low Power Management

? Shutdown Controller

? Battery Backup Registers

? Clock Generator and Power Management Controller

? Very Slow Clock Operating Mode, Software Programmable

Power Optimization Capabilities

● Peripherals

? LCD TFT Controller with Overlay, Alpha-blending, Rotation,

Scaling and Color Space Conversion

? ITU-R BT. 601/656 Image Sensor Interface

? Three HS/FS/LS USB Ports with On-Chip Transceivers

● One Device Controller

● One Host Controller with Integrated Root Hub (3 Downstream Ports)

? One 10/100/1000 Mbps Gigabit Ethernet Media Access Controller (GMAC)

with IEEE1588 support

? One 10/100 Mbps Ethernet Media Access Controller (EMAC)

? Two CAN Controllers with 8 Mailboxes, fully compliant with

CAN 2.0 Part A and 2.0 Part B

? Softmodem Interface

? Three High Speed Memory Card Hosts (eMMC 4.3 and SD 2.0)

? Two Master/Slave Serial Peripheral Interfaces

? Two Synchronous Serial Controllers

? Three Two-wire Interface up to 400 Kbit/s supporting I2C Protocol and SMBUS

? Four USARTs (ISO7816, IrDA?, RS-485, SPI, Manchester and Modem Modes)

? Two UARTs

? One DBGU

? Two 3-channel 32-bit Timer/Counters

? One 4-channel 16-bit PWM Controller

? One 12-channel 12-bit Analog-to-Digital Converter with

Resistive Touchscreen function (Continue ...)