NEX-ISA Manual
Contents
1. 9 Figure 2 ISA MagniVu Display on TLA600 700 eese nennen 11 TABLE OF TABLES Table 1 ISA TLA600 700 92A96 Wiring 7 Table 2 ISA_Cyc Cycle Type Symbol Table i4 opt ete nee SR DS tues SEE Y cess 9 Table 3 ISA_Bus Bus Control Symbol Table S ese rite issu ee 10 Doc Rev 1 10 Ww ISA MN XXX 10 OVERVIEW 1 1 General Information The NEX ISA adapter has been designed to provide quick and easy connections to interface a 102 or 136 channel TLA600 700 a 92A96 or a 92C96 acquisition module to an ISA backplane The ISA designation refers to the Industry Standard Architecture specification which is the equivalent of the PC XT AT bus In addition the method of connection permits the use of other acquisition cards pattern generation cards or other measurement devices such as oscilloscopes The included software will permit the acquisition of ISA bus cycles and will display the data in easy to read symbolic form rather than raw hexadecimal or binary data Please note that this manual uses some terms generically For instance references to a 92A96 acquisition card apply to a 92C96 acquisition card references to the DAS9200 apply equally to the TLA500 and references to the TLA600 700 apply to TLA704 711 714 715 720 or 721 chassis with one or more 7 3 4 acquisition cards2. 5 SL Informat 5 4 0 CONNECTING to the NEX ISA ADAPTER enne nennen 5 Uc Tc 5 22 DEAODOTUD EM foe pem di Ur 5 CS NE PL IER 6 DU CLOCK SELEC TON etes quce D edidit ed 8 Sul SETS MME aL MINE OF INVA TON taal 8 5 2 Clocking Options Explanation sce eh a 8 6 0 VIEWING DATA 8 6 1 Viewing State Data on the TLA600 700 ceeececeeneecesececeeeeeceeeeecseceeceeeecseeeeseeeenaeees 8 6 2 Viewing Timing Data on the TLA600 700 sese 11 6 3 Viewing State Data on the DAS9200 TLAS00 essen eene enne enne 12 6 4 Viewing Timing Data on the DAS9200 TLASOOQ essere nennen 12 APPENDIX A Necessary Signals for Clocking aecenas 5 APPENDIX B ccs oed certos rendements s cap EMEN 14 EOSOIBE a us ete 14 H2 Pateh 14 B 3 Pattern Generation 14 APPENDIX ISA B s Pinout 15 APPENDIX D NEX ISA Silk 16 APPENDIX E SUP DOU ed nea ean 17 JXBEEINDEX E BEIPICICOS 18 TABLE OF FIGURES Figure 1 ISA State Display on 00 700
3. T 340 193NNO9 60000600000000000000000000000500 65500655 5 noonanono 217 326 pJeog sa depy sng uSI APPENDIX D NEX ISA Silk Screen Doc Rev 1 10 16 ISA MN XXX A PPENDIX Support About Nexus Technology Inc NEXUS TECHNOLOGY Established in 1991 Nexus Technology Inc is dedicated to developing marketing and supporting Bus Analysis applications for Tektronix Logic Analyzers We can be reached at Nexus Technology Inc 78 Northeastern Blvd 2 Nashua NH 03062 TEL 877 595 8116 FAX 877 595 8118 Web site http www nexustechnology com Support Contact Information Technical Support techsupport nexustechnology com General Information support nexustechnology com Quote Requests quotes nexustechnology com We will try to respond within one business day If Problems Are Found Document the problem and e mail the information to us If at all possible please forward a Saved System Setup with acquired data that shows the problem Do not send a text listing alone as that does not contain enough data for analysis To prevent corruption during the mailing process it is strongly suggested that the Setup be zipped before transmission ISA MN XXX 17 Doc Rev 1 10 APPENDIX F References Tektronix TLA600 700 System User s Ma
4. Pin Side D Solder Side Side C Component Side 16 IO16 18010 IRQII IRQI2 18015 18014 DAKO DRQO DAK5 DRQ5 DAK6 DRQ6 DAK7 DRQ7 5V MASTER Ground ISA MN XXX 15 Doc Rev 1 10 5506500 2 P1 gt 4A0N 00 A33 s wnspun 895 998 09 9 9946 TIER 80000000 gcccaaca FECCTTTE woo ou l 51 3 VONHHHHOH 06000444 vooonouu Ye RT 1T 4 1 5 an punoog Z Xd9 U Xd9 ZU Xd9 IU Xd9 00 9 6 0 9 e ui mo 97 o 25 O b ow e OK e 7 des gt oa 96 10 un M suoneoo 543 a z 0 00 11 294109 4X 3d 203 03183SN 389 00 PRiSM 4 ONY tar O lt 1 5 punoug 22 OOd uox ONY STANNUHD Z 903 Xd9 HOJA 2 ONY 9 amp ST3NNUHD
5. Appendix D is a silk screen print of the NEX ISA Adapter board Referring to this drawing while reading the manual is suggested This manual assumes that the user is familiar with the ISA Bus specification and the Tektronix TLA600 700 DAS9200 or TLA500 Logic Analyzer Also in the case of the TLA600 700 it is expected that the user is familiar with Windows O S For information on using a Prism 32GPX GPD module with this support or if 514 DAS floppies are needed please contact Nexus Technology See Appendix F for contact information 2 0 SOFTWARE INSTALLATION One 37 diskette has been included with the NEX ISA Bus Adapter It is for use with the TLA600 700 series Diskettes for the DAS9200 TLA500 are available upon request Please see Appendix E for contact information 2 1 TLA600 700 The ISA support software is loaded in the same method as other Win95 programs Place the NEX ISA Install disk in the floppy drive of the TLA600 700 Select Control Panel and run Add Remove Programs choose Install Next then Finish Add Remove will then run SETUP EXE on the floppy and install the support in its proper place on the hard disk ISA MN XXX 4 Doc Rev 1 10 To load a support into the TLA600 700 first select the desired Logic Analyzer card in the Setup screen select Load Support Package from the File pull down then choose ISA and click on Okay Note that for either support the Logic Analyzer card must be at least 102 channels in wid
6. 92 96 Name Pin input Name Name Pin input Address Hex CycType Sym BusCtrl T C Sym 4 REFRSH MASTER OWS IORDY MEM16 IO16 Intrpts 15 Off IRQ14 IRQ12 IRQII IRQIO IRQ9 DMA_Ack DAK7 IRQ7 Off DAK6 IRQ6 DAK5 IRQ5 DAK3 IRQ4 DAK2 IRQ3 DAKI Unused DAKO MiscAddr 19 18 17 Clock 0 ISAWR Clock 1 CLK Clock 2 ISAWR Clock 3 CLK Table 1 ISA TLA600 700 92A96 Wiring Derived signal 15 7 Doc Rev 1 10 5 0 CLOCK SELECTION 5 1 General Information There are two clocking options available when using the NEX ISA support package Each is explained in detail below When using a TLA600 700 the clocking mode is selected by moving to the System window clicking on Setup for the appropriate LA card then clicking on More a button to the right of the Clocking field Choose the desired mode in the Clocking Select field When using a DAS9200 or TLA500 the clocking selection is made in the Clock menu 5 2 Clocking Options Explanation Cycle Acquisition Only This is the default clocking selection In this mode every bus transaction is acquired All Wait states are ignored This clocking selection offers the best use of your acquisition memory by ignoring all Wait states and also provides more easily understood data For this acquisition mode to work properly the ISA signals MEMR MEMW IOR IOW SMEMR SMEMW and CLK must be present Every
7. CLK Edge In this mode data will be acquired on every edge of the ISA CLK signal This clocking mode shows all bus cycles including Wait states Since no clocking qualification is done only the CLK signal is required 6 0 VIEWING DATA 6 Viewing State Data on the TLA600 700 After making an initial acquisition the TLA600 700 will display the data in the Listing State format Address and Data information is displayed in hexadecimal format Cycle Type CycType and Bus Control BusCtrl data is displayed using symbols Miscellaneous DMA Request and Acknowledge Interrupts and MiscAddr data groups default to OFF The use of Symbol Tables when displaying state data enables the user to quickly determine what type of bus cycle was acquired When using NEX ISA a symbol table 15 Table 2 has been provided to show the type of bus cycle that occurred on the ISA bus This symbol table quickly shows whether the acquisition was a memory or I O operation a read or a write etc A second symbol table ISA_BusCtrl Table 3 shows whether the bus transaction was a Refresh cycle or an 8 or 16 bit operation ISA MN XXX 8 Doc Rev 1 10 It is important to note that changing the group channel or wiring of the CycType or BusCtrl groups can result in incorrect symbol information being displayed Pattern 700 92 96 Symbol XXXX x xxxxxO Table 2 5 Cycle Ty
8. as that shown in the Listing window except in Timing format The second selection ISA MagniVu will show all of the channels in 2GHz MagniVu mode so that edge relationships can be examined at the module s trigger point With either selection all channels can be viewed by scrolling down the window Refer to the TLA600 700 System User s Manual for additional information on formatting the Waveform display TLA 700 Waveform 2 elx TE File Edit View Data System Window Help 8 x C1 257 590 c2 5n Delta Time 207 3ns Mag_ SMEMW 1 2 1 Delta 0 REFRSH Mag 5 MEMW Mag 1097 Mag MEMW Mag AEN Mag BALE Mag SBHE Mag CLK Moo hic 00000006 200000 Mag Data D MT Mag CycType Mag BusCtil Mag Misc Figure 2 ISA MagniVu Display on TLA600 700 ISA MN XXX 11 Doc Rev 1 10 6 3 Viewing State Data on the DAS9200 TLA500 After an acquisition is made the DAS9200 Logic Analyzer will display the data in State Display mode as a default only Address and Data information is displayed in hexadecimal format Cycle Type CycType and Bus Control BusCtrl data is displayed using symbols Miscellaneous DMA Request and Acknowledge Interrupts and MiscAddr data groups default to OFF The use of Symbol Tables when displaying state data enables the user to quickly determine what type of bus cycle was acquired When using NEX ISA a
9. gate IOW IOR SMEMW SMEMR MEMW and MEMR to provide a logic high output ISAWR whenever any one of these inputs goes low This generated signal is what is used to acquire information when in the Cycle Acquisition Only mode When acquiring data in Acquire Every CLK Edge mode the only signal necessary for clocking is CLK ISA MN XXX 13 Doc Rev 1 10 APPENDIX B Considerations B 1 ISA Loading It must be noted that the NEX ISA Bus Adapter does not provide any buffering of the ISA backplane signals This was a conscious design decision that was made by balancing the tradeoffs of possible backplane loading versus signal acquisition accuracy By not introducing signal buffers it is possible using the NEX SIA adapter to see the exact timing relationships and signal waveforms from the backplane It is also much easier to connect pattern generators to the backplane since buffer direction is not a concern It is believed that the signal loading of the TLA600 700 or 92A96 acquisition cards is low enough so that ISA signal degradation will not occur The NEX ISA Adapter Board was designed so that the run lengths for critical signals and those with the highest activity levels such as the address data bus are as short as possible This should help greatly in retaining signal integrity B 2 Patch Areas If signal loading or reflection does become a concern the capability exists to add series resistors to any ISA signal Pa
10. symbol table ISA Table 2 has been provided to show the type of bus cycle that occurred on the ISA bus This symbol table quickly shows whether the acquisition was a memory or I O operation a read or a write etc A second symbol table ISA_BusCtrl Table 3 shows whether the bus transaction was a Refresh cycle or an 8 or 16 bit operation It is important to note that changing the group channel or wiring of the CycType or BusCtrl groups can result in incorrect symbol information being displayed 6 4 Viewing Timing Data on the DAS9200 TLA500 It may be useful to display acquired information using the Timing Diagram display of the DAS9200 Note that unlike some other logic analyzers with the DAS9200 there is no need to re acquire ISA data when changing from one display mode to another The same data can be viewed in either format This method of data display can be particularly useful when an asynchronous acquisition has been made using the DAS9200 internal acquisition clock to determine the relationships between signal edges Refer to the appropriate Tektronix DAS 92A96 Module User s Manual for more detailed information on formatting the display of the acquired data ISA MN XXX 12 Doc Rev 1 10 APPENDIX A Necessary Signals for Clocking Because of the number of control signals defines in the ISA specification additional circuitry had to be provided to ensure proper clocking of data A 74530 8 input NAND gate is used to
11. NEXUS TECHNOLOGY NEX ISA ISA Bus Support Users Manual Including these Software Support packages ISA Copyright 2008 Nexus Technology Inc All rights reserved Contents of this publication may not be reproduced in any form without the written permission of Nexus Technology Inc Brand and product names used throughout this manual are the trademarks of their respective holders ISA MN XXX 1 Doc Rev 1 10 Warranty Terms and License Agreement For warranty terms refer to the Terms and Conditions of Sale document that was included in the product shipment The Software License Agreement is displayed during installation A hardcopy of that agreement may be obtained from Nexus Technology All Nexus Technology products to which this manual refers are subject to the Terms and Conditions of Sale document and the Software License Agreement as appropriate Compliance with WEEE and RoHS Directives This product is subject to European Union regulations on Waste Electrical and Electronics Equipment Return to Nexus Technology for recycle at end of life Costs associated with the return to Nexus Technology are the responsibility of the sender ISA MN XXX N Doc Rev 1 10 TABLE OF CONTENTS 10 OVERVIEW 4 154 4 220 SOP AW aS 4 PNE TCU V UO a NS 4 22 5 3 0 CONFIGURING the NEX ISA BUS ADAPTER
12. nual Tektronix TLA600 700 Logic Analyzer User s Manual Tektronix DAS9200 TLA500 System User s Manual Tektronix 92A96 92C96 Module User s Manual AT Bus Design by Edward Solari Published by Annabooks San Diego CA Intel ISA Bus Specification and Application Notes Rev 3 00 January 30 1990 Personal Computer Bus Standard IEEE document P996 Draft D2 02 13 July 1990 ISA MN XXX 18 Doc Rev 1 10
13. pe Symbol Table Signals from left to right TOW IOR SMEMW SMEMR MEMW MEMR 700 Listing 2 BME E File Edit View Data System Window Help 8 25 Deka Time 7 657505 23 Timestamp 0006 216 FFFFFF 978 000 FFFFFF 978 000 FFFFFF 977 500 FFFFFF 978 000 FFFFFF 977 500 FFFFFF 976 000 FFFFFF 978 000 FFFFFF 977 500 FFFFFF 978 000 FFFFFF 976 000 FFFFFF 278 000 FFFFFF 977 500 000043 316 572 375 500 FFFCOO 842 000 OFE3B0 555 000 418 500 419 500 419 000 978 000 419 000 419 000 419 500 977 500 419 000 Figure 1 ISA State Display TLA600 700 ISA MN XXX 9 Doc Rev 1 10 Pattern 1xxx0 XX 0 xx1xxx1 1 Table 3 ISA_Bus Bus Control Symbol Table TLA700 92 96 Symbol REFRESH MEMI6 IO16 8 BIT Signals from left to right T C IOCHK REFRSH MASTER 0WS IORDY MEM16 IO16 ISA MN XXX 10 Doc Rev 1 10 6 2 Viewing Timing Data on the TLA600 700 By default the TLA600 700 will display an acquisition in the Listing State mode However the same data can be displayed in Timing form by adding a Waveform Display window This is done by clicking on the Window pull down selecting New Data Window clicking on Waveform Window Type then choosing the Data Source Two choices are presented ISA and ISA MagniVu The first ISA will show the exact same data same acquisition mode
14. tch areas have been provided next to each TLA600 700 A96 connector consisting of two rows of plated through holes These areas outlined on the silk screen and labeled as Nxx are suitable for individual resistors or resistor networks To add a series resistor simply cut the trace of the desired signal on the component side of the board and solder the resistor between the two feed throughs B 3 Pattern Generation Because there is no buffer circuitry on the NEX ISA Adapter it is well suited for use with the 92816 and 92832 Pattern Generator modules available for the DAS9200 By connecting pattern generator probes to the A96 signal connectors on the Adapter desired bus activity can be simulated This can be particularly effective when trying to debug interrupt or DMA conflicts It should be noted that because of the pin spacing of the A96 connectors it is not recommended that the Tektronix P6464 or P6465 pattern generator probes be used without providing adequate cooling for their podlets These probes use active podlets that can get very warm in use A better choice would be the P6463 pods which are passive and do not have such cooling requirements ISA MN XXX 14 Doc Rev 1 10 APPENDIX C ISA Bus Pinout Side B Solder Side Side A Component Side Ground RESET 5V IRQ9 5V DRQ2 12V OWS 12V Ground SMEMW SMEMR IOW IOR DAK3 DRQ3 DAK1 DRQI REFRSH CLK IRQ7 IRQ6 IRQ5 IRQ4 IRQ3 DAK2 T C BALE 5V OSC Ground
15. ted for the A96 Follow the silk screened information on the board that shows the proper relationship between the signal and ISA MN XXX 5 Doc Rev 1 10 reference inputs When properly connected the sides of the podlets that have writing on them should be visible Connect the four clock leads to their specified locations at J12 the only connector with 4 locations Again follow the silk screened information to properly connect the clock input and its ground Table 1 shows the wiring and Channel Grouping for the TLA600 700 when used with the NEX ISA adapter 4 3 92A96 When using a 92A96 or 92C96 connect the grouped pods to their appropriate locations by following the silk screen information printed on the adapter board The 92A C96 pods are labeled 0 DO D3 and C0 C3 Each pod has its proper location denoted on the silk screen of the adapter board When attaching the pods follow the silk screen information on the board showing the ground and signal pin locations When properly connected the colored sides of the podlets should be visible Connect the four clock leads one per A96 cable to their specified locations at J12 the only connector with 4 locations Again follow the silk screened information to properly connect the clock input and its ground Table 1 shows the wiring and Channel Grouping for the 92A96 when used with the NEX ISA adapter ISA MN XXX 6 Doc Rev 1 10 Signal ISA TLA700 92 96 Group Signal ISA TLA700
16. th 2 2 DAS9200 The included diskette should be loaded onto the DAS9200 using the Install Application function This function is available from the Disk Services menu of the DAS For more information refer to the Tektronix DAS9200 TLA500 System User s Manual Load the desired support from within the 92A96 Config menu by choosing ISA Support and pressing lt RETURN gt The channel grouping clocking and symbols will then be loaded 3 0 CONFIGURING the NEX ISA BUS ADAPTER 3 1 General Information There are two jumper areas on the NEX ISA adapter board JP1 and JP2 When using the NEX ISA adapter in an 8 bit XT slot shorting blocks must be placed across these two jumpers for proper data acquisition by the logic analyzer When using the adapter in a 16 bit AT slot the shorting blocks must be removed If they are left on when using the NEX ISA board in an AT slot improper operation of the target system may result 4 0 CONNECTING to the NEX ISA ADAPTER 4 1 General Although taller than a standard XT or AT module the NEX ISA adapter is designed to plug directly into any full size ISA backplane slot The board length and connector spacing conforms to ISA specifications 4 0 TLA600 700 When using NEX ISA support with a TLA600 700 containing a 7 3 4 acquisition module the necessary acquisition data sections are 0 DO D3 and C0 C3 These grouped channels 8 podlets to a group should be connected to the locations deno
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