dspblok™ 21489+Ethernet User Manual
Contents
1. Web Site http www danvillesignal com Voice 507 263 5854 Fax 877 230 5629 dspblok 21489 Ethernet User Manual Page B Table of Contents CV OTTO ee ee A a oe ee oe oat eed ads daa dea aes 1 dspblok Development Boards vasta A A aa 1 dspblok 2T48 ina A AAA A A AA eeu A 1 INTENSA AUG IENCE ii ii coc seuloatiee 2 Getting Started SAS A AA A ARA AA AAA AA ee 2 Hardware ON CINE Cade TT ttet ETE edad 7 POWER Suppl yemesine nn A at E ea E S 7 MEMON isiro ia E nage A E RE EE A naa E EE ine ena EA EA EE GA 8 BIAN RAR A E EE A AEE NE AEA AE A E a EA IEEE A EREATARA EE EA 8 Data BUS A T EE et E AE E E E AEN EE 8 Corsa NS A Ni AEE ESEE AE 8 MACAO ess tt a E A A li Ne 9 Multiprocessor Configurations a A Mea aM INOS naa ed 9 RES de NSE E o O EAE AO EREE OAA OEE O a 9 Signal Levels sarita ir A E A TEA AE 9 BOOLOPUONS pin dd E E S 9 CONNECHONS O A 10 Connector Recommendations amp Notes ooccccnncccnnnnocononiccnnnnacocnnnnccnnnnncononanicnnnncinnns 12 Connector SPECI CAL OMe enen aa E A E E E S ae RS 12 aE N E E EEEO AE EE AE to eases edb bade ein A EE a 12 TAME A A E ds EA 12 ASCO EUA ON y di a AAA ARIAS AAA TAS RA ASA 12 JA Power amp Clock a A en Re ne A ai ida 12 JERS JEVZ Data BuS x5 22 dsdexzaus ER S Sa aS aasa I ASAS 13 IF DSB Se dspBootloader Mode ce usec cose ne cece saan iein aE EEA N 13 JE Eth rriets ua tt A A boda 13 Mechanical Dimensions dspblok 21489 Ethernet 14 Mechanical Dime2. 5 0 for SHARC or CrossCore Embedded Studio for the software development along with either a dspblok 21489 Ethernet ICE or an external ADI emulator Visual DSP 5 0 versus CrossCore Embedded Studio VisualDSP has been ADI s DSP software environment for many years In many ways it has a similar look and feel to Microsoft s Visual Studio Tools There are separate licenses for SHARC and Blackfin so customers that need to support both families often need to buy two full licenses In our view the full version of VisualDSP is expensive about 3500 US However once you own VisualDSP you can continue updating for free Version 1 0 customers can now be using Version 5 0 without incurring any maintenance charges There are also KIT and TESTDRIVE licenses which are free CrossCore Embedded Studio is ADI s replacement for VisualDSP Unlike VDSP it is Eclipse based It has a much lower entry cost 1000 US It will likely have upgrade costs as new processors are added This may not matter at all if you are not migrating to newer DSPs CrossCore supports both Blackfin and SHARC DSP with a single license ADI offers a free 90 day TESTDRIVE version dspblok 21489 Ethernet User Manual Page 2 Emulation Options dspblok 21489 Ethernet ICE Start your development with a dspblok 21489 Ethernet ICE module The ICE version incorporates an ADI Standalone Debug Agent The debug agent is a USB bus powered device It ope
3. The ADSP 21469 has a 8 bit data bus For compatibility only the lower 8 bits of the ADSP 21489 data bus is brought out to JH5 Earlier dspbloks based on the ADSP 21369 supported a 32 bit data bus This was needed primarily to support wide SDRAM interfacing The original JH6 connection on the dspblok 21369zx board was used for the extended data bus This is also why there are unused pins on JH5 If you are adapting a dspblok 21369zx design to support the dspblok 21489 you should verify that these changes will not impact your design In most cases this will not be an issue The address bus is also organized so that the MS lines and the lower address lines are grouped together This allows a smaller receptacle to be used when the whole address space is not required JH8 USB amp dspBootloader Mode JH8 supports the Danville dspBootloader The dspBootloader allows you to upload your application and any supporting files via the USB port and other ports as well If the connections are left open the dspBootloader will operate in its default setting We recommend that you bring the mode pins out to an external configuration header or a dip switch You should review the dspBootloader manual for detailed information The USB portion of JH8 requires some attention to detail Since the DM amp DP lines are operating at 480Mb s signal integrity is important Route closely spaced tracks on the top layer of the PCB with a corresponding ground plane lay
4. When 4 3mm height mating female connectors are used the board will be 6 3mm 0 25 in above the target board therefore 0 250 standoffs may be used Component height above the board is 6mm 0 236 in The board is 1 6mm 0 062 in thick dspblok 21489 Ethernet User Manual Page 13 Mechanical Dimensions dspblok 21489 Ethernet ICE 1 CORE PS USB ETHERNET 55 00 2 17 FLASH EEPROM ADSP 21489 o 115 00 4 53 55 00 2 17 Analog Devices Debug Agent 60 00 2 36 The dspblok 21489 Ethernet ICE board has identical mounting holes and mating connections as the production dspblok 21489 Two additional mounting holes are provided for support as shown The debugger portion of the dspblok 21489 Ethernet ICE is USB bus powered Manual Reset is also available via a tact switch located below the ADI debugger Schematic The Distribution CD includes schematic diagrams of the dspblok 21489 Ethernet dspblok 21489 Ethernet User Manual Page 14 Product Warranty Danville Signal Processing Inc products carry the following warranty Danville Signal Processing products are warranted against defects in materials and workmanship If Danville Signal Processing receives notice of such defects during the warranty period Danville Signal Processing shall at its option either repair or replace hardware products which prove to be defective Danville Signal Processing software and firmware
5. 2 Danville Signal Processing Inc dspblok 21489 Ethernet O O i CORE PS ETHERNET FLASH EEPROM 60 00 2 36 ADSP 21489 60 00 2 36 a User Manual Version 1 10 Danville Signal Processing Inc dspblok 21489 Ethernet User Manual Copyright 2012 2013 Danville Signal Processing Inc All rights reserved Printed in the USA Under the copyright laws this manual may not be reproduced in any form without prior written permission from Danville Signal Processing Inc Danville Signal Processing Inc strives to deliver the best product to our customers As part of this goal we are constantly trying to improve our products Danville Signal Processing Inc therefore reserves the right to make changes to product specification or documentation without prior notice Updated operating manuals and product specification sheets are available at our website for downloading This manual may contain errors omissions or typo s Please send your comments suggestions and corrections to Danville Signal Processing Inc 38570 100th Avenue Cannon Falls MN 55009 5534 Trademark Notice dspblok dspstak dspFlash and dspBootloader are trademarks of Danville Signal Processing Inc VisualDSP CrossCore SHARC and Blackfin are trademarks of Analog Devices Inc Contact Information Danville Signal Processing Inc 38570 100th Avenue Cannon Falls MN 55009 E mail dsp danvillesignal com
6. 2mm header to the larger ADI JTAG connector You will also need a FULL VisualDSP 5 0 or CrossCore Embedded Studio license after 90 days Development Boards If you are designing your own companion board we strongly recommend that you use one of our existing I O boards and or power supply boards as an initial development platform Depending on your situation this could be a dspblok dev board dspstak system dspInstrument or a combination of dspblok I O and power supply modules Any of these components will give you a solid footing for development before you incorporate the dspblok into your own target If you are laying out your own pc board we can provide you with PCB footprints and schematic symbols Gerber amp Altium Designer to help you avoid simple mistakes Regardless of your situation Danville engineers are available to help you with your application We may have solutions that are not yet on our web site We also provide many solutions that are specifically tailored to customer needs Contact us about turnkey solutions dspblok 21489 Ethernet User Manual Page 3 We recommend that you have the documents Danville Signal Designing for Compatibility Manual Danville Signal dspBootloader Manual Analog Devices ADSP 21483 21486 21487 21488 21489 SHARC Processor Data Sheet Analog Devices ADSP 214xx SHARC Processor Hardware Reference Manual Analog Devices SHARC Processor Programming Reference Manual Analog Devices VisualDS
7. MOSI DPI2 MISO DPI3 SCK DPI5 Flash SS and DPI6 EE SS With the exception of DPI6 these connections are necessary to support SPI master booting The dspblok 21489 may also be booted from an external host using SPI slave mode In this case DPI4 is also used as the SPIDS line Data Bus The dspblok 21489 brings out the lower 8 bits of external data bus including all address lines with the exception of MSO Since the data bus is primarily used for I O expansion we elected to ignore the upper data lines D15 D8 to maintain compatibility with the ADSP 21469 The upper portion of MS1 is used for on board peripherals The lower Y4 of the address space is available MS2 and MS3 can also be used as FLAG2 and FLAG3 respectively They are configured together so MS1 might be used for the external data bus and FLAG2 amp FLAG3 for other purposes Clocks The dspblok 21489 supports both internal and external clocking options You must desolder the 25 000MHz HC49 style crystal on the board to use an external clock The configuration header JH3 allows any ADSP 21489 power up clock configuration to be set The default configuration is 25 000M x 16 400M dspblok 21489 Ethernet User Manual Page 7 MAC Address Each dspblok 21489 has a unique IEEE EUI 48 address This feature is part of the on board EEProm Microchip 25AA02E48 Multiprocessor Configurations The dspblok 21489 may be used as a coprocessor in a larger system P
8. are not 5V tolerant Most external devices requiring 5V TTL levels can be safely driven by the dspblok If you have questions concerning interfacing external devices please contact Danville for suggestions Boot Options All ADSP 21489 boot options are available via the configuration and programming header JH3 These include Master SPI flash memory and Slave SPI external host The boot mode pins are pulled passively to create a default boot mode of SPI Master dspblok 21489 Ethernet User Manual Page 8 Connections Pin Description JH1 JTAG MUSEL m m E Note 1 GND a un GND TCK GND TRST GND TDI GND TDO Vd 3 3 Vd 3 3 JH8 USB GIZZ Lee lt jee G n Z Z Q JD SB DP SB DN Z U erved D Z 2 Z D creara U Z D SEE ES ES Dja aju in 0 N 01 R OluIRwIRD o N dan Key No Pin Vd 3 3 Mon SERMODE1 SERMODEO JH2 Note 2 dspblok 21489 Ethernet User Manual Description DAI DPI IO GND DPI8 DPI4 DPI13 DPI14 FLGO DPI7 DPI11 DPI12 DPI9 DPI10 FLG1 FLG3 DPI1 MOSI DPI3 SCK DPI2 MISO RESET Reserved DAI DAI2 DAI3 DAI4 DAI5 DAI6 DAI7 DAI8 DAI9 DAI10 DAI11 DAI12 DAI13 DAI14 DAI15 DAI16 DAI17 DAI18 DAI19 DAI20 GND GND Pin AA a JH3 po 1 GND Pic rate a 2 MA ar e Description Config
9. products which are designated by Danville Signal Processing for use with our hardware products are warranted not to fail to execute their programming instructions due to defects in materials and workmanship If Danville Signal Processing receives notice of such defects during the warranty period Danville Signal Processing shall at its option either repair or replace software media or firmware which do not execute their programming instructions due to such defects Danville Signal Processing does not warrant that operation of the software firmware or hardware shall be uninterrupted or error free The warranty period for each product is one year from date of installation Limitation of Warranty The forgoing warranty shall not apply to defects resulting from Improper or inadequate maintenance by the Buyer Buyer supplied software or interfacing Unauthorized modification or misuse Operation outside the environmental specification of the product Improper site preparation and maintenance Exclusive Remedies The remedies provided herein are the Buyer s sole and exclusive remedies In no event shall Danville Signal Processing Inc be liable for direct indirect special incidental or consequential damages including loss of profits whether based on contract tort or any other legal theory dspblok 21489 Ethernet User Manual Page 15 RoHS amp WEEE Compliance The European Union approved a directive on the restriction of th
10. 0mm x 60mm 2 36 x 2 36 JH2 and JH4 JH8 are 2mm male headers that are installed on the bottom side of the pc assembly JH1 and JH3 are mounted on the top side of the pc assembly If mating 2mm female headers 4 3mm ht are used the pc assembly will be about 1 4 above the mating pc board This allows standard 0 250 standoffs to be used with the corner mounting holes if desired The hole size is 2 3mm suitable for 2 56 or M2 screws O JH9 JH8 JH4 O n ay e JH1 JTAG connects to external ICE Top Side USB e JH2 DAI DPI I O SPI amp System Bottom Side e JH3 Clock amp Boot Configuration Top Side FLASH EEPROM 60 00 2 36 OS e JH4 Power amp Ext Clock Bottom Side ADSP 21489 e _JH5 JH7 Data Bus Bottom Side e JH8 USB Port amp dspBootloader Mode Bottom Side O JH3 JTAG E O e JH9 Ethernet Bottom Side POE 60 00 2 36 EIA Power Supply There are two power supply connections to the dspblok DSP core Vdd and DSP I O and Memory Vd 3 3 The DSP core supply may range from 3 3V to 5V This is the input to an on board switching power supply that supplies 1 1V to the ADSP 21489 DO NOT use a higher voltage supply for the core supply input JH4 Vdd A single 3 3V supply is all that is required to power the dspblok 21489 but in some cases a 5V supply may be more convenient The DSP I O and Memory supply must be 3 3V For example a product may already have a swi
11. 3 The dspblok 21489 Ethernet ICE omits JH1 since the debugger is on board If you want to use an external emulator or the Danville dspFlash Blackfin amp SHARC Programmer you may remove the ADI Debugger and use the JTAG connection provided below the debugger JH2 DAI DPI 1O This connector is mounted on the bottom side of the dspblok The DAI lines are all uncommitted by the dspblok With the exception of the SPI lines the DPI can be freely assigned JH3 Configuration This connector is mounted on the top side of the dspblok It provides direct access to the ADSP 21489 clock mode and boot mode configuration pins In most cases you should leave all the connections open Use shorting jumpers if you want to change the configuration Note that each shorting jumper will cause the corresponding mode pin to deviate from the pin state of the default configuration This means that some pins are pulled high and others low JH4 Power amp Clock This connector is mounted on the bottom side of the dspblok This is the main power feed to the dspblok Vdd is the input to the core switching supply Both Vdd pins should be connected to together and fed with either 5V or 3 3V Likewise Vd 3 3 should be connected together and fed with 3 3V dspblok 21489 Ethernet User Manual Page 11 JH5 JH7 Data Bus The data bus is split to two separate connectors one for address and the other for data The ADSP 21489 has an 16 bit data bus
12. P 5 0 Manual Set Wiznet W5100 Datasheet We recommend that you have the tools e Analog Devices VisualDSP 5 0 for SHARC or CrossCore Embedded Studio e Emulator or Debug Agent one of the following e Analog Devices HPUSB ICE and Danville JTAG Adapter P N A 08153 e Danville dspblok 21489 Ethernet ICE Optional e Danville dspFlash Blackfin amp SHARC Programmer Our website www danvillesignal com has downloads and links to these tools and documents dspblok 21489 Ethernet User Manual Page 4 The dspblok 21489 Ethernet ICE includes the following items Hardware e dspblok 21489 Ethernet ICE Module e USB Cable Software e VisualDSP 5 0 for SHARC KIT license CD Documents CD e This Manual e CAD footprints Gerber amp Altium formats e Schematics e Sample Programs e Debug Agent Driver The dspblok 21489 Ethernet includes the following Hardware e dspblok 21489 Ethernet Module Documents CD e This Manual e CAD footprints Gerber amp Altium formats e Schematics e Sample Programs dspblok 21489 Ethernet User Manual ETHERNET FLASH EEPROM ADSP 21489 O CORE PS Analog Devices Debug Agent 115 00 4 53 ETHERNET FLASH EEPROM JTAG 60 00 2 36 ADSP 21489 O GORE PS 60 00 2 36 60 00 2 36 Page 5 Hardware Overview The dspblok 21489 Ethernet is a small module measuring 6
13. d many of Danville s standalone products such as our dspstak dsprak dspMusik and dspInstrument product lines dspblok Development Boards All dspblok production modules have a companion developer s version which includes an Analog Devices EZ KIT style debugger These boards are physically larger 60mm x 115mm to accommodate the debugger but have a matching footprint to our production modules 60mm x 60mm Once you have developed and debugged your software you can replace the debugger module ICE version with a lower cost smaller production module The dspblok with ICE versions include the free Visual DSP KIT license and are supported by the FULL version Depending on the complexity of your application you may be able to create and support your application without ever needing to purchase additional development tools You can also use Analog Devices CrossCore Embedded Studio dspblok 21489 Ethernet The dspblok 21489 Ethernet is a highly integrated DSP module that incorporates an Analog Devices ADSP 21489 SHARC DSP operating at 400 MHz with flash and EEProm An onboard switching power supply supports the core voltage requirements of the DSP so that only 3 3V is required to power the dspblok The ADSP 21489 peripherals include SPORTS 8 SPI 2 TWI 12C UART timers PWMs JTAG and an external data bus USB is provided by an FTDI FT232H which is a high speed USB device with excellent driver supp
14. e use of certain hazardous substances in electrical and electronic equipment This directive is commonly known as RoHS EU Directive 2002 95 EC This directive severely limits the amount of lead and 5 other substances that can be in contained in nonexempt products The directive became European law in February 2003 and took effect July 1 2006 It is likely that other countries outside the European Union and some states in the United States may adopt similar legislation There are a number of important exemptions that affect many of our customers The most important of these is Category 9 Control and Monitoring Instruments You may wish to review your situation to see if this exemption applies to you Military medical and some other products are also exempt We suggest that you make an appropriate assessment concerning your products The dspblok 21489 is ROHS compliant The dspblok 21489 is a subcomponent of a larger system therefore it is not subject to the WEEE directive EU Directive 2002 96 EC dspblok 21489 Ethernet User Manual Page 16
15. er on the next layer You do not want discontinuities in this plane Keep other traces away from the DM amp DP lines You may also want to add a good transient suppressor A Texas Instruments TPD2E001 is good choice JH9 Ethernet The Ethernet port only requires external magnetics and a connector Generally a composite RJ 45connector that includes the isolation transformer is the most convenient choice By keeping the transformers of the dspblok you can also use the dspblok in an Ethernet POE power over ethernet configuration This makes the dspblok 21489 Ethernet well suited for remote smart sensor applications The LED connections are both active low 200 ohm series limiting resistor are on the dspblok You may wish to add additional limiting resistance for high efficient LEDs dspblok 21489 Ethernet User Manual Page 12 Mechanical Dimensions dspblok 21489 Ethernet 28 00 1 10 am 6 00 0 24 46 00 1 81 Top Side Bottom Side i Be se Ei CORE PS USB ETHERNET 60 00 2 36 57 00 2 25 FLASH EEEROM ADSP 21489 Of 44 00 1 73 D ol 24 00 0 94 JTAG 26 00 1 02 57 00 2 25 60 00 2 36 Holes 2 3 0 090 4 places gt JUJAV JUJAV O 55 00 2 17 z 3 fi Z 3 a 0 rer Q jp 55 00 2 17 A Mounting holes are equidistant from the center of the dspblok These holes are 2 3mm in diameter suitable for 2 56 or M2 screws
16. erhaps the easiest way to communicate with an external host to configure the secondary SPI port as a slave The primary SPI port remains configured as an SPI master so that it can manage local resources such as flash and EE memory as well as other I O devices You can also use SPORTs for interprocessor communication This can be a good approach for Blackfin SHARC combinations It also works well for multichannel applications where you might use several dspbloks to provide front end signal processing and combine into a consolidated TDM data stream The results could be routed to a central processor that manages the whole system and communicates to the outside world Reset On power up the dspblok 21489 is automatically held in reset until the 3 3V power supply is stable RESET is active low and open drain This means that an external device s may also reset the dspblok by pulling the reset line low External devices should not drive RESET high since this can cause contention with the on board reset circuit The external reset circuit is connected in a wired OR configuration using an active low open drain configuration A 74LVC125 or an open collector drain transistor circuit are possibilities You do not need an additional pull up resistor Signal Levels The dspblok 21489 uses standard 3 3V logic levels These levels have become the defacto operating standard for many years now DO NOT use 5V logic when interfacing to the dspblok The inputs
17. ndant internal memory of the ADSP 21489 Those applications that do require large blocks of memory are much better served by the pin compatible dspblok 21469 or dspblok 21469 USB The ADSP 21469 supports much faster DDR2 SDRAM with an independent interface A 16Mbit serial flash memory may be used to bootload the DSP There is a pre installed bootloader program that resides in the flash This program accepts standard ADI loader files SPI slave binary 8 bit and can be uploaded with a dspblok development board a dspstak 21489 or any Danville board that includes a USB connector If you want to manage the flash memory yourself you can overwrite the internal bootloader via the JTAG port In this case the Danville dspFlash Blackfin amp SHARC Programmer is available for fast production programming 8kbits of EEProm memory is also available as byte addressable user memory For example you might store serial numbers build versions or calibration values in this space DAI amp DPI The ADSP 21489 has 20 DAI lines and 14 DPI lines Collectively these can be thought of as two sets of crossbar switches that connect to a wealth of peripherals The dspblok 21489 maintains the flexibility of the DAI and DPI by bringing out all 20 DAI and 12 of 14 DPI lines to external connections The DAI is completely unencumbered and can be assigned to I O in an arbitrary manner The DPI is slightly restricted in that the primary SPI interface is assigned to DPI1
18. nsions dspblok 21489 Ethernet ICE 15 D ES 15 Proc LE EST al PR 16 ROIS IS WEEP COMICS coles AARC 17 dspblok 21489 Ethernet User Manual Page C Overview Danville Signal s dspblok family of products delivers the power of digital signal processing in a small 60mm x 60mm form factor Connections are brought out to standard 2mm dual row headers The dspblok reduces development costs risk and time Danville s dspblok DSP function modules are often incorporated directly into larger custom embedded systems By taking advantage of pretested signal processing modules pc board layouts become simpler and projects are completed quickly and cost effectively Danville s dspblok DSP Engines are largely pin compatible This allows your application to take advantages of new processor technology and extended features in the future You can also create small standalone embedded applications by combining a dspblok DSP function module with other dspblok modules Embedded dspblok systems can be created by using a dspblok power supply such as our dspblok ps uart and an I O module such as one of our dspblok ad96k family of audio data converter boards Each board is stacked via 2mm headers to create a low profile configuration where space is at a premium We also have combination power supply I O boards such as our dspblok a9238 48 high speed ADC boards for SDR applications Danville dspblok DSP Engines are the driving force behin
19. ort Each dspblok 21489 also includes a unique MAC address IEEE EUI 48 Ethernet support 100Mb s is provided by a Wiznet W5100 This device manages the TCP IP stack making the communications support very easy without burdening the DSP dspblok 21489 Ethernet User Manual Page 1 Intended Audience The dspblok 21489 requires an understanding of the Analog Devices ADSP 21489 and the associated tools used for development If the dspblok 21489 is going to be integrated into a larger hardware design then it is also assumed that the user is familiar with basic hardware design In most cases systems integrators DSP programmers and software engineers can create DSP embedded systems using our embedded dspblok systems or dspstak family without the need for additional hardware design and manufacturing If you do not have a background with these skills you may want to check out our web site http www danvillesignal com as well as the Analog Devices web site for links to useful references Danville engineers are also available to discuss your application Getting Started Danville s customer base is quite diverse Our customers range from embedded systems hardware designers to system integrators looking for complete turnkey solutions We often work with embedded systems engineers who may not have specific expertise in digital signal processing Regardless of your background you will need the right tools This means either Visual DSP
20. rates at full speed 12Mb s The dspblok 21489 Ethernet ICE has the same footprint as a production dspblok except that the board is much larger This is necessary to fit the debug agent One of the advantages of the dspblok 21489 Ethernet ICE is that it is supported by the VisualDSP KIT license The KIT free version starts out as a FULL TESTDRIVE version but after 90 days requires that the dspblok 21489 Ethernet ICE is connected via the ADI debug agent It will not connect to an ADI emulator simulator or support another SHARC DSP The linker restricts a user program to 27306 words of memory for code space with no restrictions for data space The good news is that it can be used to create bootable images loader files that can be used with the production dspblok 21489 Depending on your situation this may be all that you need You can also use the dspblok 21489 Ethernet ICE with CrossCore Embedded Studio but you will need to buy a license after 90 days dspblok 21489 Ethernet with an external ADI ICE Start your development with a dspblok 21489 Ethernet module In this case you will want to connect to the dspblok 21489 Ethernet via an external Analog Devices emulator Analog Devices offers two versions the USB ICE and the HPUSB ICE We prefer the faster HPUSB ICE which is up to 10 times faster and also supports background telemetry You will also need a Danville JTAG adapter kit P N A 08153 which converts the Danville JTAG
21. tching supply that converts directly to 3 3V In this case it may be desirable to supply both the DSP core and the dspblok Vd 3 3 I O from this supply Alternatively a product might have a 5V supply perhaps from an external power supply module A simple LDO fixed regulator could be used to create 3 3V from this supply Most high speed devices including the ADSP 21489 draw most of their power from their core supplies In this scenario it makes no sense to power the dspblok core with 3 3V since the LDO would be dissipating the excess voltage as heat If the I O requirements are modest the power dissipation in the LDO might not be significant Power consumption is largely a function of the temperature due to leakage current of the ADSP 21489 It is also a function of the core clock and the computation tasks that are being executed on the DSP The highest consumption occurs when the DSP is performing continuous floating point operations at maximum core clock 400MHz and at maximum temperature The Analog Devices ADSP 21489 SHARC Processor Data Sheet has an excellent section on estimating power consumption of the DSP dspblok 21489 Ethernet User Manual Page 6 Memory The ADSP 21489 includes 5Mbits of internal SRAM This is 2 5 times more than the earlier third generation SHARC DSPs ADSP 21369 It also includes an SDRAM controller which is not used in the dspblok 21489 We have found that most applications do not need more than the abu
22. uration BOOTCFGO Vd 3 3 BOOTCFG1 Vd 3 3 BOOTCFG2 Vd 3 3 CLKCFGO GND CLKCFG1 Power GND Ext Clk USB PE NC Vd 3 3 Vd 3 3 USB Vdd 3 3V or 5V Vdd 3 3V or 5V PS Sync GND Page 9 JH5 Note 10 Note 10 Note 10 Note 10 Note 10 Note 10 Note 10 Note 10 Note 10 Note 10 Note 1 Note 2 Note 3 Note 4 Note 5 Note 6 Note 7 Note 8 JH7 Note 10 Note 10 Note 10 1 2 3 4 eae BOSA ER Bes 9 Pin 10 11 112 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 Description Address Bus NC NC NC A23 A22 A21 A20 A19 A18 A17 A16 A15 A14 A13 A12 A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 AO MS1 MS2 30 MS3 Mating Plug is plugged to prevent misalignment DPI4 also functions as SPIDS in SPI slave booting applications Leave Unconnected Boot Configuration is 001 by default SPI Master Booting Pin Description po JH9 Ethernet eS 1 RD jun en ee ETE ETT AE CPE Ea ENE aos ES Connector GND EA E 11 LINK LED AA E 13 FDX LED EEEE 15 GND 16 Vd 3 3 Clock Configuration is 10 by default 16 x ClkIn generally reconfigured in program code Active after USB is enumerated Normally connect Vd 3 3 Pins 5 amp 6 together Possible USB bus power with external circuits Vdd is externall
23. y supplied 3 3 to 5V Vin for DSP Core Switching supply Both connections must be the same voltage Note 9 Leave open or supply 1 4 to 1 6M clock typically data converter MCLK N Note 10 Not Connected may be used for extended features by other dspbloks Note 11 This connector is not used in the dspblok 21489 but is defined for dspblok 21489 ETH dspblok 21489 Ethernet User Manual Page 10 Connector Recommendations amp Notes Connector Specification All dspblok connectors are gold plated 2mm dual row headers Male connectors are generally mounted on the bottom side of the dspblok pc assembly The exceptions are JH3 amp JH1 which are not intended to mate to a motherboard The plastic base of each male connector is 2mm The height of the female headers is 4 3mm This means that the inserted combined height of the two connectors is 6 3mm or approximately 1 4 inch Standard standoffs may be used to secure the dspblok to the target pc board Mounting holes are 2 3mm dia to accommodate a 2 56 or M2 screws or standoffs JH1 JTAG This connector is mounted on the top side of the dspblok A 2mm right angle header is used instead of the larger ADI JTAG header The connections on the JTAG header correspond with the connections on an ADI JTAG header In addition Vd 3 3 is also available This addition allows an active buffer circuit to be added for JTAG chaining applications Danville has an ADI JTAG adapter available P N A 0815
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