ADI公司的ADSP-21375是高性能 32位浮點(diǎn)SHARC處理器,采用ADI公司的超哈佛架構(gòu),SIMD計算架構(gòu),工作頻率266MHz,集成了眾多的音頻外設(shè)如數(shù)字應(yīng)用接口,S/PDIF收發(fā)器,串行端口,精密時鐘發(fā)生器等.主要用在工業(yè)控制,儀器儀表,醫(yī)療電子以及專業(yè)音響等領(lǐng)域.本文介紹了ADSP-21375主要特性, 功能方框圖和HARC核方框圖,以及ADSP-21375 EZ-KIT Lite®評估板主要特性, 系統(tǒng)框圖, 電路圖和材料清單.
The ADSP-21371/ADSP-21375 SHARC® processors are members of the SIMD SHARC family of DSPs that feature Analog Devices’ Super Harvard Architecture. The processors are source code compatible with the ADSP-2126x, ADSP-2136x, and ADSP-2116x DSPs, as well as with first generation ADSP-2106x SHARC processors in SISD (single-instruction, single-data) mode. The processors are 32-bit/40-bit floating-point processors optimized for high performance automotive audio applications with their large on-chip SRAM and mask-programmable ROM, multiple internal buses to eliminate I/O bottlenecks, and an innovative digital applications interface (DAI).
The processors use two computational units to deliver a significant performance increase over the previous SHARC processors on a range of DSP algorithms. Fabricated in a state-of-the-art, high speed, CMOS process, the processors achieve an instruction cycle time of 3.75 ns at 266 MHz. With its SIMD computational hardware, the processors can perform 1.596 GFLOPS running at 266 MHz.
ADSP-21375主要特性:
High performance 32-bit/40-bit floating point processor optimized for high performance audio processing
Single-instruction, multiple-data (SIMD) computational architecture
On-chip memory, ADSP-21371—1M bits of on-chip SRAM and 4M bits of on-chip mask-programmable ROM
On-chip memory, ADSP-21375—0.5M bits of on-chip
SRAM and 2M bits of on-chip mask-programmable ROM
Code compatible with all other members of the SHARC family
The ADSP-21371/ADSP-21375 processors are available with a 200/266 MHz core instruction rate with unique audiocentric peripherals such as the digital applications interface, S/PDIF transceiver, serial ports, precision clock generators, and more.
DEDICATED AUDIO COMPONENTS
ADSP-21371—S/PDIF-compatible digital audio receiver/transmitter
ADSP-21371—8 dual data line serial ports that operate at up to 50 Mbps on each data line — each has a clock, frame sync, and two data lines that can be configured as either a receiver or transmitter pair
16 PWM outputs configured as four groups of four outputs
ROM-based security features include
JTAG access to memory permitted with a 64-bit key
Protected memory regions that can be assigned to limit access under program control to sensitive code
PLL has a wide variety of software and hardware multiplier/ divider ratios
Available in a 208-lead LQFP_EP pack
ADSP-21375主要應(yīng)用:
Professional Audio
Medical Applications
Industrial and Instrumentation
圖1.ADSP-21375功能方框圖
圖2.ADSP-21375 SHARC核方框圖
ADSP-21375 EZ-KIT Lite®評估板
The ADSP-21375 EZ-KIT Lite® provides developers with a cost-effective method for initial evaluation of the ADSP-2137x SHARC® Processors via a USB-based, PC-hosted tool set. With this EZ-KIT Lite, users can learn more about the Analog Devices (ADI) ADSP-2137x hardware and software development tools, and quickly prototype a wide range of applications.
The EZ-KIT Lite includes an ADSP-21375 SHARC Processor desktop evaluation board along with an evaluation suite of the VisualDSP++® development and debugging environment, including the C/C++ compiler, assembler, and linker. The evaluation suite of VisualDSP++ is designed to be used with the EZ-KIT Lite only.
The EZ-KIT Lite, in addition to the high performing SHARC Processor itself, includes additional components to support evaluation. Flash memories, SDRAM, an RS-232 UART connection, a high end AD1835 multichannel audio codec with RCA connectors, push-buttons, and LEDs are included.
Debug connectivity between the EZ-KIT Lite and the host PC is realized with an on-board USB debug agent connection. The capability of the EZ-KIT Lite can be further extended with add-on extender cards from ADI. For example, the USB EZ-Extender® can be used to add USB 2.0 client functionality to your application.
Additionally, the ADSP-21375 EZ-KIT Lite contains the National Instruments (NI) Educational Laboratory Virtual Instrumentation Suite (ELVIS) interface. This interface allows use of the dc voltage and current measurement modules, oscilloscope and bode analyzer modules, function generators, arbitrary waveform generators, and digital I/O. NI ELVIS is a LabVIEWTM-based design and prototype environment for university science and engineering laboratories’ curricula.
圖3. ADSP-21375 EZ-KIT Lite®評估板外形圖
ADSP-21375 EZ-KIT Lite®評估板主要特性:
ADSP-21371 SHARC® Processor
1M x 8-bit FLASH memory
128Mb (1M x 32-bit x 4 banks) SDRAM
2Mbit SPI® FLASH memory
AD1835 stereo, 96 kHz, 24-bit codec
USB-based debugger interface
Evaluation suite of VisualDSP++ development tools
圖4. ADSP-21375 EZ-KIT Lite®評估板框圖
圖5. ADSP-21375 EZ-KIT Lite®評估板電路圖(1)
圖6. ADSP-21375 EZ-KIT Lite®評估板電路圖(2)
圖7. ADSP-21375 EZ-KIT Lite®評估板電路圖(3)
圖8. ADSP-21375 EZ-KIT Lite®評估板電路圖(4)
圖9. ADSP-21375 EZ-KIT Lite®評估板電路圖(5)
圖10. ADSP-21375 EZ-KIT Lite®評估板電路圖(6)
圖11. ADSP-21375 EZ-KIT Lite®評估板電路圖(7)
圖12. ADSP-21375 EZ-KIT Lite®評估板電路圖(8)
圖13. ADSP-21375 EZ-KIT Lite®評估板電路圖(9)
圖14. ADSP-21375 EZ-KIT Lite®評估板電路圖(10)
圖15. ADSP-21375 EZ-KIT Lite®評估板電路圖(11)
圖16. ADSP-21375 EZ-KIT Lite®評估板電路圖(12)
ADSP-21375 EZ-KIT Lite®評估板材料清單:
詳情請見:
http://www.analog.com/static/imported-files/data_sheets/ADSP-21371_21375.pdf
和
http://www.analog.com/static/imported-files/eval_kit_manuals/6022863057181065021ADSP_21375_EZ_KIT_Lite_Manual_Rev._1.1.pdf