原标题：ADI ADSP-BF518 Blackfin处理器开发方案

　　ADI公司的ADSP-BF518F EZ-Board评估系统是用来评估ADSP-BF518F Blackfin处理器的功能,处理器的I/O电压为3.3V,核电压由 DP1715和AD5258来控制,而Blackfin 处理器ADSPBF518F,采用ADI/Intel微信号架构(MSA),集成了双MAC信号处理引擎,具有正交RISC类微处理器指令集,单指令多数据(SIMD)多媒体功能,主要用在工业控制,马达控制,仪器仪表,Femto基站,网络音频,VoIP等领域.本文介绍了ADSP-BF518主要特性,方框图,Blackfin 处理器核框图,以及ADSP-BF518F EZ-Board评估板主要特性,方框图,电路图和材料清单.

　　The ADSP-BF512/ADSP-BF512F, ADSP-BF514/ADSPBF514F, ADSP-BF516/ADSP-BF516F, ADSP-BF518/ADSPBF518F processors are members of the Blackfin® family of products, incorporating the Analog Devices/Intel Micro Signal Architecture (MSA). Blackfin processors combine a dual-MAC state-of-the-art signal processing engine, the advantages of a clean, orthogonal RISC-like microprocessor instruction set, and single-instruction, multiple-data (SIMD) multimedia capabilities into a single instruction-set architecture.

　　The processors are completely code compatible with other Blackfin processors.

　　ADSP-BF518主要特性:

　　Up to 400MHz high performance Blackfin processor

　　Two 16-bit MACs, two 40-bit ALUs, four 8-bit video ALUs,40-bit shifter

　　RISC-like register and instruction model for ease of programming and compiler-friendly support

　　Advanced debug, trace, and performance monitoring

　　Wide range of operating voltages

　　Qualified for Automotive Applications

　　168-ball CSP_BGA or 176-lead LQFP with exposed pad

　　MEMORY

　　116K bytes of on-chip memory

　　External memory controller with glueless support for SDRAM and asynchronous 8-bit and 16-bit memories

　　Optional 4M bit SPI flash with boot option

　　Flexible booting options from internal SPI flash, OTP memory, external SPI/parallel memories, or from SPI/UART host devices

　　Code security with Lockbox secure technology

　　One-time-programmable (OTP) memory

　　Memory management unit providing memory protection

　　PERIPHERALS

　　IEEE 802.3-compliant 10/100 Ethernet MAC with IEEE 1588 support (ADSP-BF518/ADSP-BF518F only)

　　Parallel peripheral interface (PPI), supporting ITU-R 656 video data formats

　　2 dual-channel, full-duplex synchronous serial ports (SPORTs), supporting 8 stereo I2S channels

　　12 peripheral DMAs, 2 mastered by the Ethernet MAC

　　2 memory-to-memory DMAs with external request lines

　　Event handler with 56 interrupt inputs

　　2 serial peripheral interfaces (SPI)

　　Removable storage interface (RSI) controller for MMC, SD,

　　SDIO, and CE-ATA

　　2 UARTs with IrDA support

　　2-wire interface (TWI) controller

　　Eight 32-bit timers/counters with PWM support

　　3-phase 16-bit center-based PWM unit

　　32-bit general-purpose counter

　　Real-time clock (RTC) and watchdog timer

　　32-bit core timer

　　40 general-purpose I/Os (GPIOs)

　　Debug/JTAG interface

　　On-chip PLL capable of frequency multiplication

　　ADSP-BF518市场和应用:

　　VoIP

　　Industrial Control

　　Motor Control

　　Femto Cells

　　Networked Audio

　　Instrumentation

　　图1.ADSP-BF518方框图

　　图2.ADSP-BF518 Blackfin处理器核框图

　　ADSP-BF518F EZ-Board评估系统

　　ADSP-BF518F EZ-BoardTM Evaluation System

　　This EZ-Board is designed to demonstrate the ADSP-BF518F Blackfin processor capabilities. The processor has an I/O voltage of 3.3V. The core voltage of the processor is controlled by an Analog Devices ADP1715 low dropout regulator (LDO) and an Analog Devices AD5258 digipot, which is configurable over the 2-wire interface (TWI) signals.

　　The ADSP-BF518F EZ-Board provides example programs to demonstrate the capabilities of the product.

　　图3.ADSP-BF518F EZ-Board评估板外形图

　　The evaluation board is designed to be used in conjunction with the VisualDSP++® development environment to test the capabilities of the ADSP-BF512/BF512F, ADSP-BF514/BF514F, ADSP-BF516/BF516F,and ADSP-BF518/BF518F Blackfin processors. The VisualDSP++ development environment aids advanced application code development and debug, such as:

　　• Create, compile, assemble, and link application programs written in C++, C, and assembly

　　• Load, run, step, halt, and set breakpoints in application programs

　　• Read and write data and program memory

　　• Read and write core and peripheral registers

　　• Plot memory

　　ADSP-BF518F EZ-Board评估板主要特性:

　　• Analog Devices ADSP-BF518F Blackfin processor

　　 Core performance up to 400 MHz

　　 External bus performance up to 80 MHz

　　 176-pin LQFP package

　　 25 MHz crystal

　　• Programmable VDDINT core power

　　 Analog Devices AD5258 TWI digital potentiometer

　　 Analog Devices ADP1715 low dropout linear regulator

　　• Synchronous dynamic random access memory (SDRAM)

　　 Micron MT48LC32M16A2TG – 64 MB (32M x 16-bits)

　　• Parallel flash memory

　　 Numonyx M29W320EB – 4 MB (2M x 16-bits)

　　• eMMC flash memory

　　 Micron MTFC2GDKDM – 2 GB

　　• SPI flash memory

　　 Numonyx M25P16 – 16 Mb

　　• Analog audio interface

　　 Analog Devices SSM2603 low-power audio codec

　　 One stereo LINE OUT jack

　　 One headphone LINE IN

　　 One input MIC jack

　　 One input stereo LINE IN jack

　　• Ethernet interface

　　 National Semiconductor DP83848 PHY device

　　 10-BaseT and 100-BaseTX

　　 Auto-MDIX

　　• ADC interface

　　 Analog Devices AD7266 2 MSPS, 12-bit, 3-channel SAR analog-to-digital converter

　　• Thumbwheel

　　 Panasonic EVQ-WKA001 rotary encoder

　　• Universal asynchronous receiver/transmitter (UART)

　　 ADM3202 RS-232 line driver/receiver

　　 DB9 female connector

　　• LEDs

　　 Five LEDs: one board reset (red), three general-purpose (amber), one configurable ethernet LEDs (amber) and one power (green)

　　• Push buttons

　　 Three push buttons: one reset, two programmable flags with debounce logic

　　• Expansion interface II

　　 Next generation of the expansion interface design, provides access to most of the ADSP-BF518F processor signals

　　• Land grid array

　　 Easy probing of all port pins and most EBIU signals

　　• Other features

　　 JTAG ICE 14-pin header

　　 Blackfin power measurement jumpers

　　图4.ADSP-BF518F EZ-Board评估板方框图

　　ADSP-BF518F EZ-Board评估板材料清单: