VXI 320222-01 - Manuals

Contents VXI-MXI User Manual viii © National Instruments Corporation Figures Figure 1-1. VXI-MXI Interface Module ............................................................................. 1-2 Figure 1-2. VXI-MXI Interface Module with INTX Option ............................................... 1-...

Contents © National Instruments Corporation ix VXI-MXI User Manual Figure 6-1. Master to Slave VMEbus/MXIbus Transfers ................................................... 6-7 Figure 6-2. Deadlock Situation ............................................................................................ 6...

© National Instruments Corporation xi VXI-MXI User Manual About This Manual The VXI-MXI User Manual describes the functional, physical, and electrical aspects of theVXI-MXI and contains information concerning its operation and programming. Organization of This Manual The VXI-MXI User Manual is organ...

About This Manual VXI-MXI User Manual xii © National Instruments Corporation How to Use This Manual If you will be installing your VXI-MXI into a system with a VXIbus Resource Manager, youonly need to read Chapters 1 through 3 of this manual. If you have more than two VXI-MXIsextending your system, ...

General Information Chapter 1 VXI-MXI User Manual 1-4 © National Instruments Corporation Overview The VXI-MXI is an extended class Register-Based VXIbus device with optional Slot 0 capabilityso that it can reside in any slot in a C-size or D-size VXIbus chassis. The VXI-MXI convertsA32, A24, A16, D3...

Chapter 1 General Information © National Instruments Corporation 1-5 VXI-MXI User Manual – Data transfer bus arbiter (PRI ARBITER) – Interrupt acknowledge daisy-chain driver – Pushbutton system reset switch • VMEbus master capabilities: – Access to A16, A24, and A32 address space – D08(EO), D16, and...

General Information Chapter 1 VXI-MXI User Manual 1-6 © National Instruments Corporation What Your Kit Should Contain Your VXI-MXI kit should contain the following components: Component Part Number Standard VXI-MXI Interface Module 181045-01 or Enhanced VXI-MXI Interface Module with INTX option 1810...

Chapter 1 General Information © National Instruments Corporation 1-7 VXI-MXI User Manual The following optional equipment is also available and may be necessary if your VXI-MXIincludes the INTX daughter card. Equipment Part Number Type INTX1 CablesStraight-point connector to straight-point connector...

© National Instruments Corporation 2-1 VXI-MXI User Manual Chapter 2 General Description This chapter contains the physical and electrical specifications for the VXI-MXI and describesthe characteristics of key interface board components. Electrical Characteristics All integrated circuit drivers and ...

General Description Chapter 2 VXI-MXI User Manual 2-2 © National Instruments Corporation Table 2-1. VXI-MXI VMEbus Signals (Continued) Driver Device Receiver Device Bus Signals Part Number Part Number IACKIN* – LS540 IACKOUT* GAL20V8 – IRQ[7-1]* AS760, LS145 LS540 All MXIbus transceivers meet the re...

Chapter 2 General Description © National Instruments Corporation 2-3 VXI-MXI User Manual The VXI-MXI does not support the following VMEbus modules: • Serial Clock Driver • Power Monitor Table 2-3 indicates the VXI-MXI VMEbus compliance levels. Table 2-3. VXI-MXI VMEbus Compliance Levels Compliance N...

Chapter 2 General Description © National Instruments Corporation 2-5 VXI-MXI User Manual VXI-MXI Functional Description In simplest terms, the VXI-MXI can be thought of as a bus translator that converts VXIbussignals into appropriate MXIbus signals. From the perspective of the MXIbus, the VXI-MXIimp...

General Description Chapter 2 VXI-MXI User Manual 2-6 © National Instruments Corporation SYSFAIL* SYSRESET* ACFAIL* VMEbus IRQ7-1 IRQ* Interrupt Circuitry SYSFAIL, ACFAIL, SYSRESET Logic Daughter Card Connection IRQ7-1 VMEbus Address and Address Modifiers Transceivers A31-1 A32 Window A24 Window A16...

General Description Chapter 2 VXI-MXI User Manual 2-8 © National Instruments Corporation The following information applies only to VXI-MXI kits that include the INTX daughter cardoption. Figure 2-2 is a block diagram of the circuitry of the INTX daughter card. INTX Registers Interrupt Control Trigge...

Chapter 2 General Description © National Instruments Corporation 2-9 VXI-MXI User Manual • Interrupt Control The interrupt control logic maps the VMEbusinterrupt lines to and from the correspondingINTX interrupt lines. In conjunction with theVXI-MXI circuitry, the interrupt requests routedbetween VX...

© National Instruments Corporation 3-1 VXI-MXI User Manual Chapter 3Configuration and Installation This chapter describes the configuration and installation of the VXI-MXI. Configuring the VXI-MXI Before installing the VXI-MXI in the VXIbus mainframe, configure the VXI-MXI to suit theneeds for your ...

Configuration and Installation Chapter 3 VXI-MXI User Manual 3-4 © National Instruments Corporation The Metal Enclosure The VXI-MXI is housed in a metal enclosure to improve EMC performance and to provide easyhandling. Because the enclosure includes cut-outs to facilitate changes to switch and jumpe...

Configuration and Installation Chapter 3 VXI-MXI User Manual 3-6 © National Instruments Corporation VXIbus Logical Address Each device in a VXIbus/MXIbus system is assigned a unique number between 0 and 254. This8-bit number, called the logical address, defines the base address for the configuration...

Chapter 3 Configuration and Installation © National Instruments Corporation 3-7 VXI-MXI User Manual Shown atDefault settingof Logical Address 1 LOGICAL ADDRESS SWITCH Push this side down for logic 0Push this side down for logic 1 OFF ON 1 2 3 4 56 7 8 OFF 1 2 3 4 5 6 7 8 a. Switch Setting to Default...

Configuration and Installation Chapter 3 VXI-MXI User Manual 3-8 © National Instruments Corporation a. Level 3 Requester (default) • • • • • • • • • • • • • • • • VMEbus Request Level • • • • • • • • b. Level 2 Requester • • • • • • • • • • • • • • • • VMEbus Request Level • • • • • • • • c. Level 1...

Chapter 3 Configuration and Installation © National Instruments Corporation 3-9 VXI-MXI User Manual configuration allows VXIbus transfers to have short bus timeout values and MXIbus transfers tohave much longer timeout values. You can either disable the VMEbus timeout value or set it to 100, 200, or...

Configuration and Installation Chapter 3 VXI-MXI User Manual 3-10 © National Instruments Corporation VMEbus Timeout Chain Position The VME BTO Chain Position jumper block indicates the location of the VXI-MXI interface inrelation to other VXI-MXIs installed in the mainframe. If only one VXI-MXI is i...

Chapter 3 Configuration and Installation © National Instruments Corporation 3-13 VXI-MXI User Manual Interlocked Arbitration Mode Interlocked arbitration mode is an optional mode of operation in which the system performs asone large VXIbus mainframe with only one master of the entire system (VXIbus ...

Configuration and Installation Chapter 3 VXI-MXI User Manual 3-14 © National Instruments Corporation Select interlocked arbitration mode by changing the default setting of the slide switch fromNormal to Interlocked Bus Cycles as shown in Figure 3-11. Interlocked Bus Cycles Normal S3 a. Normal Operat...

Chapter 3 Configuration and Installation © National Instruments Corporation 3-15 VXI-MXI User Manual MXIbus System Controller Enabled Disabled S4 a. Not MXIbus System Controller (Default Setting) MXIbus System Controller Enabled Disabled S4 b. MXIbus System Controller Figure 3-12. MXIbus System Cont...

Configuration and Installation Chapter 3 VXI-MXI User Manual 3-16 © National Instruments Corporation MXIbus System Controller Timeout The MXIbus System Controller is also responsible for the MXIbus system timeout. The timeoutperiod begins when a MXIbus data strobe (DS) is received. The period stops ...

Chapter 3 Configuration and Installation © National Instruments Corporation 3-17 VXI-MXI User Manual MXIbus Fairness Option The MXIbus fairness feature ensures that all requesting devices will be granted use of theMXIbus. This feature prevents a high priority MXIbus device from consuming all of theM...

Chapter 3 Configuration and Installation © National Instruments Corporation 3-19 VXI-MXI User Manual • • • • • • Drive CLK10 from onboard 10MHz, Slot 0 Drive CLK10 from SMB CLK10, Slot 0 Receive CLK10, Non-Slot 0 CLK10 Source Select a. Onboard 10 MHz VXI-MXI Installed in Slot 0 (Default Setting) • •...

Configuration and Installation Chapter 3 VXI-MXI User Manual 3-20 © National Instruments Corporation EXT CLK SMB Input/Output If you want to have synchronized CLK10 signals in multiple VXIbus mainframes, you canconnect the CLK10 signals of the two mainframes together using the EXT CLK SMB connectors...

Chapter 3 Configuration and Installation © National Instruments Corporation 3-21 VXI-MXI User Manual Drive CLK10 from INTX CLK10, Slot 0 (W9 and W10 must be removed) W2 W3 Do Not Drive CLK10 from INTX CLK10 INTX CLK10 Routing W1 Receive CLK10 from INTX Drive CLK10 out INTX a. CLK10 Mapping Disabled ...

Configuration and Installation Chapter 3 VXI-MXI User Manual 3-22 © National Instruments Corporation The VXI-MXI must be installed in Slot 0 if you want to route the INTX CLK10 signal to theVXIbus CLK10 signal. The CLK10 Source Select jumpers on the VXI-MXI must be set toconfigure the VXI-MXI to rec...

Chapter 3 Configuration and Installation © National Instruments Corporation 3-23 VXI-MXI User Manual Reset Signal Select The VXI-MXI generates a 200 ms active low pulse both on power-up and when you press thepushbutton system reset switch on the front panel. Using the Reset Signal Select slide switc...

Configuration and Installation Chapter 3 VXI-MXI User Manual 3-24 © National Instruments Corporation MXIbus Termination The MXIbus is a matched impedance bus and requires termination networks at the first and lastdevice in the MXIbus daisy-chain. These terminations minimize reflections caused byimpe...

Chapter 3 Configuration and Installation © National Instruments Corporation 3-25 VXI-MXI User Manual networks are not used, you should leave these internal terminators in place. If the VXI-MXI isnot going to be an end device, or if you will be using external terminators, remove theterminating resist...

Configuration and Installation Chapter 3 VXI-MXI User Manual 3-26 © National Instruments Corporation If the daughter card will be the first or last device in the INTX chain (irrespective of theVXI-MXI's position in the MXIbus chain), you should leave these terminators in place. If thedaughter card i...

Chapter 3 Configuration and Installation © National Instruments Corporation 3-27 VXI-MXI User Manual • If interlocked mode is used, the VXI-MXIs must be the highest priority VMEbus requestersin their mainframe. However, one, and only one, mainframe in the MXIbus link can have ahigher priority VMEbus...

Configuration and Installation Chapter 3 VXI-MXI User Manual 3-28 © National Instruments Corporation Connecting the MXIbus Cable MXIbus devices are daisy-chained together with MXIbus cables. Dual-ended cables arepolarized and require proper connection to function properly. The VXI-MXI uses a shielde...

Configuration and Installation Chapter 3 VXI-MXI User Manual 3-30 © National Instruments Corporation In a properly configured MXIbus system, the first and last devices in the daisy-chain each haveonly one cable connected to their device connector. MXIbus devices that are neither the first northe las...

Chapter 3 Configuration and Installation © National Instruments Corporation 3-31 VXI-MXI User Manual Keep in mind that a system can contain only one device acting as the VXIbus Resource Manager(RM). It is important that the RM be run only after all other devices in the system have beenpowered on. Be...

© National Instruments Corporation 4-1 VXI-MXI User Manual Chapter 4Register Descriptions This chapter contains detailed information on the use of the VXI-MXI registers, which are usedto configure and control the module's operation. All of these configuration registers areaccessible from the VMEbus ...

Register Descriptions Chapter 4 VXI-MXI User Manual 4-2 © National Instruments Corporation Table 4-1. VXI-MXI Register Map Register Name Offset from Base Type Size Address (Hex) VXIbus ID Register 0 Read Only 16-bit Device Type Register 2 Read Only 16-bit VXIbus Status/Control Register 4 Read/Write ...

Register Descriptions Chapter 4 VXI-MXI User Manual 4-4 © National Instruments Corporation VXIbus Configuration Registers These registers are defined by the VXIbus specification for all VXIbus devices. VXIbus ID Register VXIbus Address: Base Address + 0 (hex) Attributes: Read Only R 15 14 13 12 11 1...

Chapter 4 Register Descriptions © National Instruments Corporation 4-5 VXI-MXI User Manual 11-0r MANID Manufacturer ID Bits This number uniquely identifies the manufacturer of the VXIbusdevice. These bits are configured in hardware as hex FF6, theVXIbus manufacturer ID number assigned to National In...

Register Descriptions Chapter 4 VXI-MXI User Manual 4-6 © National Instruments Corporation Device Type Register VXIbus Address: Base Address + 2 (hex) Attributes: Read Only R 15 14 13 12 11 10 9 0 0 1/0 0 1 1 1 1 8 MODEL 7 6 5 4 3 2 1 0 1 0 0 0 0 1 1 0 This register indicates how much VMEbus memory ...

Chapter 4 Register Descriptions © National Instruments Corporation 4-7 VXI-MXI User Manual VXIbus Status/Control Register VXIbus Address: Base Address + 4 (hex) Attributes: Read/Write R 15 14 13 12 11 10 9 1 MODID* 1 ACCDIR 8 0 0 0 0 0 0 0 0 W R 7 6 5 4 3 2 1 RDY PASS 1 RESET 0 0 0 0 0 0 0 0 RESET W...

Chapter 4 Register Descriptions © National Instruments Corporation 4-9 VXI-MXI User Manual VXIbus Extender Registers These registers are defined for VXIbus extender devices. MODID Register VXIbus Address: Base Address + 8 (hex) Attributes: Read/Write R/W 15 14 13 12 11 10 9 0 0 OUTEN MODID12 MODID11...

Register Descriptions Chapter 4 VXI-MXI User Manual 4-10 © National Instruments Corporation Logical Address Window Register VXIbus Address: Base Address + A (hex) Attributes: Read/Write This register defines the range of logical addresses that are mapped into and out of the VXI-MXIthrough the MXIbus...

Chapter 4 Register Descriptions © National Instruments Corporation 4-11 VXI-MXI User Manual LAEN LADIR Window Applies to 0 X Disabled 1 0 VXI cycles to MXI cycles 1 MXI cycles to VXI cycles 12-11r/w 1 Reserved Bits These bits are reserved and read back as ones. Write a zero whenwriting to these bits...

Register Descriptions Chapter 4 VXI-MXI User Manual 4-12 © National Instruments Corporation The Logical Address Window Register has the following format when the CMODE bit is set: R/W 7 6 5 4 3 2 1 LALOW7 LALOW6 LALOW5 LALOW4 LALOW3 LALOW2 LALOW1 LALOW0 0 15 14 13 12 11 10 9 8 R/W LAHIGH7 LAHIGH6 LA...

Register Descriptions Chapter 4 VXI-MXI User Manual 4-14 © National Instruments Corporation A16 Window Map Register VXIbus Address: Base Address + C (hex) Attributes: Read/Write This register defines the range of addresses in the lower 48 KB of A16 space that is mapped intoand out of the VXI-MXI thr...

Chapter 4 Register Descriptions © National Instruments Corporation 4-15 VXI-MXI User Manual A16EN A16DIR Window Applies to 0 X Disabled 1 0 VXI cycles to MXI cycles 1 MXI cycles to VXI cycles 12-11r/w 1 Reserved Bits These bits are reserved and read back as ones. Write a zero whenwriting to these bi...

Register Descriptions Chapter 4 VXI-MXI User Manual 4-16 © National Instruments Corporation The A16 Window Map Register has the following format when the CMODE bit is set: R/W 7 6 5 4 3 2 1 A16LOW7 A16LOW6 A16LOW5 A16LOW4 A16LOW3 A16LOW2 A16LOW1 A16LOW0 0 15 14 13 12 11 10 9 8 R/W A16HIGH7 A16HIGH6 ...

Register Descriptions Chapter 4 VXI-MXI User Manual 4-18 © National Instruments Corporation A24 Window Map Register VXIbus Address: Base Address + E (hex) Attributes: Read/Write This register defines the range of addresses in A24 space that are mapped into and out of theVXI-MXI through the MXIbus. T...

Register Descriptions Chapter 4 VXI-MXI User Manual 4-20 © National Instruments Corporation The A24 Window Map Register has the following format when the CMODE bit is set: R/W 7 6 5 4 3 2 1 A24LOW7 A24LOW6 A24LOW5 A24LOW4 A24LOW3 A24LOW2 A24LOW1 A24LOW0 0 15 14 13 12 11 10 9 8 R/W A24HIGH7 A24HIGH6 ...

Register Descriptions Chapter 4 VXI-MXI User Manual 4-22 © National Instruments Corporation A32 Window Map Register VXIbus Address: Base Address + 10 (hex) Attributes: Read/Write This register defines the range of addresses in A32 space that are mapped into and out of theVXI-MXI through the MXIbus. ...

Register Descriptions Chapter 4 VXI-MXI User Manual 4-24 © National Instruments Corporation The A32 Window Map Register has the following format when the CMODE bit is set: R/W 7 6 5 4 3 2 1 A32LOW7 A32LOW6 A32LOW5 A32LOW4 A32LOW3 A32LOW2 A32LOW1 A32LOW0 0 15 14 13 12 11 10 9 8 R/W A32HIGH7 A32HIGH6 ...

Register Descriptions Chapter 4 VXI-MXI User Manual 4-26 © National Instruments Corporation INTX Interrupt Configuration Register (on VXI-MXIs with INTX only) VXIbus Address: Base Address + 12 (hex) Attributes: Read/Write R/W 15 14 13 12 11 10 9 0 EINT7EN EINT6EN EINT5EN EINT4EN EINT3EN EINT2EN EINT...

Chapter 4 Register Descriptions © National Instruments Corporation 4-27 VXI-MXI User Manual INTX Trigger Configuration Register (on VXI-MXIs with INTX only) VXIbus Address: Base Address + 14 (hex) Attributes: Read/Write R/W 15 14 13 12 11 10 9 ETRG7EN ETRG6EN ETRG5EN ETRG4EN ETRG3EN ETRG2EN ETRG1EN ...

Register Descriptions Chapter 4 VXI-MXI User Manual 4-28 © National Instruments Corporation INTX Utility Configuration Register (on VXI-MXIs with INTX only) VXIbus Address: Base Address + 18 (hex) Attributes: Read/Write R 15 14 13 12 11 10 9 0 1 1 0 1 1 1 1 8 R/W 7 6 5 4 3 2 1 1 1 ACFAILIN ACFAILOUT...

Register Descriptions Chapter 4 VXI-MXI User Manual 4-30 © National Instruments Corporation Subclass Register VXIbus Address: Base Address + 1E (hex) Attributes: Read only R 15 14 13 12 11 10 9 1 1 1 1 1 1 1 0 8 SUBCLASS 7 6 5 4 3 2 1 0 1 1 1 1 1 1 1 0 These bits define the subclass of a VXIbus exte...

Chapter 4 Register Descriptions © National Instruments Corporation 4-31 VXI-MXI User Manual MXIbus Defined Registers MXIbus Status/Control Register VXIbus Address: Base Address + 20 (hex) Attributes: Read/Write R 15 14 13 12 11 10 9 1 1 MXSCTO INTLCK DSYSFAIL FAIR 8 DSYSFAIL DSYSRST W R 7 6 5 4 3 2 ...

Chapter 4 Register Descriptions © National Instruments Corporation 4-33 VXI-MXI User Manual 11r MXSCTO MXIbus System Controller Timeout Status Bit If this VXI-MXI is the MXIbus System Controller, this bit is set ifthe VXI-MXI sent a MXIbus BERR on the last MXIbus transfer inresponse to a MXIbus Syst...

Register Descriptions Chapter 4 VXI-MXI User Manual 4-36 © National Instruments Corporation MXIbus Lock Register VXIbus Address: Base Address + 22 (hex) Attributes: Read/Write R 15 14 13 12 11 10 9 1 1 1 1 1 1 1 1 8 0 0 0 0 0 0 0 0 W R 7 6 5 4 3 2 1 1 1 1 1 1 1 1 LOCKED 0 0 0 0 0 0 0 0 W LOCKED The ...

Chapter 4 Register Descriptions © National Instruments Corporation 4-37 VXI-MXI User Manual MXIbus IRQ Configuration Register VXIbus Address: Base Address + 24 (hex) Attributes: Read/Write R/W 15 14 13 12 11 10 9 SYSFOUT MIRQ7EN MIRQ6EN MIRQ5EN MIRQ4EN MIRQ3EN MIRQ2EN MIRQ1EN 8 R/W 7 6 5 4 3 2 1 SYS...

Register Descriptions Chapter 4 VXI-MXI User Manual 4-38 © National Instruments Corporation MIRQxEN MIRQxDIR Routing 0 X Disabled 1 0 VME IRQ X drives MXI IRQ 1 MXI IRQ drives VME IRQ X

Chapter 4 Register Descriptions © National Instruments Corporation 4-39 VXI-MXI User Manual Drive Triggers/Read LA Register VXIbus Address: Base Address + 26 (hex) Attributes: Read/Write R/W 15 14 13 12 11 10 9 DTRIG7 DTRIG6 DTRIG5 DTRIG4 DTRIG3 DTRIG2 DTRIG1 DTRIG0 8 R 7 6 5 4 3 2 1 LADD7 LADD6 LAD...

Register Descriptions Chapter 4 VXI-MXI User Manual 4-40 © National Instruments Corporation 1w DRVECL1 Drive ECL Trigger Line 1 Bit Setting this bit asserts the VXIbus ECL Trigger Line 1 aftersynchronizing the signal with the 10 MHz clock. 0w DRVECL0 Drive ECL Trigger Line 0 Setting this bit asserts...

Chapter 4 Register Descriptions © National Instruments Corporation 4-41 VXI-MXI User Manual Trigger Mode Selection Register VXIbus Address: Base Address + 28 (hex) Attributes: Read/Write R 15 14 13 12 11 10 9 1 1 1 1 1 1 1 1 8 ITS2 ITS1 ITS0 W R 7 6 5 4 3 2 1 1 1 TRIGIN TRIGOUT ASINT* SSINT* 0 0 ASI...

Register Descriptions Chapter 4 VXI-MXI User Manual 4-42 © National Instruments Corporation When in Sync, Semi-Sync, or Async Source Mode, write a zero tothe PULSE bit in the Drive Triggers Register to generate a pulseon the trigger line selected by the OTS[3-0] bits. You must write aone to the PULS...

Chapter 4 Register Descriptions © National Instruments Corporation 4-45 VXI-MXI User Manual Interrupt Status/Control Register VXIbus Address: Base Address + 2A (hex) Attributes: Read/Write R 15 14 13 12 11 10 9 LINT3 LINT2 LINT1 BKOFF TRIGINT SYSFAIL ACFAIL 8 LINT3 LINT2 LINT1 0 BKOFFIE TRIGINTIE SY...

Chapter 4 Register Descriptions © National Instruments Corporation 4-49 VXI-MXI User Manual MXIbus Trigger Configuration Register VXIbus Address: Base Address + 2E (hex) Attributes: Read/Write R/W 15 14 13 12 11 10 9 TRIG7EN TRIG6EN TRIG5EN TRIG4EN TRIG3EN TRIG2EN TRIG1EN TRIG0EN 8 R/W 7 6 5 4 3 2 1...

Register Descriptions Chapter 4 VXI-MXI User Manual 4-50 © National Instruments Corporation Trigger Synchronous Acknowledge Register VXIbus Address: Base Address + 34 (hex) Attributes: Write Only W 15 14 13 12 11 10 9 X X X X X X X X 8 W 7 6 5 4 3 2 1 X X X X X X X X 0 Writing any value to this regi...

Chapter 4 Register Descriptions © National Instruments Corporation 4-51 VXI-MXI User Manual IRQ Acknowledge Registers VXIbus Address: Base Address + 32 (hex) for IRQ1*Base Address + 34 (hex) for IRQ2*Base Address + 36 (hex) for IRQ3*Base Address + 38 (hex) for IRQ4*Base Address + 3A (hex) for IRQ5*B...

© National Instruments Corporation 5-1 VXI-MXI User Manual Chapter 5Programming Considerations This chapter explains important considerations for programming and configuring a VXIbus/MXIbus system using VXI-MXIs. Note: Detailed descriptions of all register bits can be found in Chapter 4, RegisterDes...

Chapter 5 Programming Considerations © National Instruments Corporation 5-3 VXI-MXI User Manual The recommended way to set up your system is to fill up Level 1 MXIbus links before addingadditional levels. System performance decreases as the number of levels in the system increasesbecause each level ...

Programming Considerations Chapter 5 VXI-MXI User Manual 5-4 © National Instruments Corporation Base7 Size = 1 Size = 2 Size = 3 Size = 4 Size = 5 Size = 6 Size = 7 Base6 Base5 Base4 Base3 Base2 Base1 Base0 Figure 5-3. Base and Size Combinations FF-F0 EF-E0 DF-D0 CF-C0 BF-B0 AF-A0 9F-90 8F-807F-70 6...

Chapter 5 Programming Considerations © National Instruments Corporation 5-5 VXI-MXI User Manual High/Low Configuration Format Each address mapping window on a MXIbus interface has High and Low address parametersassociated with it when the CMODE bit in the MXIbus Control Register is set. The High and...

Programming Considerations Chapter 5 VXI-MXI User Manual 5-8 © National Instruments Corporation VXIbus Mainframe #1 VXI-MXI VXI-MXI VXIbus Mainframe #2 VXI-MXI MXIbus Device A MXIbus Device B VXIbus Mainframe #3 VXI-MXI VXI-MXI VXIbus Mainframe #6 VXI-MXI VXIbus Mainframe #4 VXI-MXI VXIbus Mainframe...

Chapter 5 Programming Considerations © National Instruments Corporation 5-9 VXI-MXI User Manual Into VXIbus Mainframe #3 FF-F0 EF-E0 DF-D0 CF-C0 BF-B0 AF-A0 9F-90 8F-807F-70 6F-605F-50 3F-30 4F-40 2F-20 1F-10 0F-00 VXIbus Mainframe #1 VXIbus Mainframe #6 VXIbus Mainframe #3 VXIbus Mainframe #4 VXIbu...

Programming Considerations Chapter 5 VXI-MXI User Manual 5-10 © National Instruments Corporation Resource Manager Mainframe: VXIbus Mainframe #1 Total number of logical addresses required by this device: 12 Range = 0 – F Round total number up to the next power of two: * 16 (2 4 ) Size = 8-4 = 4 Firs...

Chapter 5 Programming Considerations © National Instruments Corporation 5-11 VXI-MXI User Manual MXIbus Link: MXIbus #1 Device: MXIbus Device A Number of logical addresses required by device: 3 Range = E0 – E3 Round total number up to the next power of two: 4 (2 2 ) Size = 8-2 = 6 List other MXIbus ...

Programming Considerations Chapter 5 VXI-MXI User Manual 5-12 © National Instruments Corporation MXIbus Link: MXIbus #2 Device: VXIbus Mainframe #6 Number of logical addresses required by device: 7 Range = 10 – 17 Round total number up to the next power of two: 8 (2 3 ) Size = 8-3 = 5 List other MXI...

Chapter 5 Programming Considerations © National Instruments Corporation 5-13 VXI-MXI User Manual Worksheets for Planning Your VXIbus/MXIbus Logical Address Map Use the worksheets on the following pages for analyzing your own VXIbus/MXIbus system.Follow the procedures used to fill out the worksheets ...

Chapter 5 Programming Considerations © National Instruments Corporation 5-21 VXI-MXI User Manual Planning a VXIbus/MXIbus System A16 Address Map The VXIbus specification does not define a method for dynamically determining the amount ofA16 space each device requires. The specification defines the up...

Programming Considerations Chapter 5 VXI-MXI User Manual 5-22 © National Instruments Corporation BFFF-B000 AFFF-A000 9FFF-9000 8FFF-8000 7FFF-7000 6FFF-6000 5FFF-5000 4FFF-4000 3FFF-3000 2FFF-2000 1FFF-10000FFF-0000 F0 E0 C0 B0 A0 D0 90 80 50 40 00 60 70 30 20 10 Size = 2 Size = 3 Size = 4 Size = 5 ...

Chapter 5 Programming Considerations © National Instruments Corporation 5-25 VXI-MXI User Manual Table 5-4. Example VXIbus/MXIbus System Required A16 Space Amount of A16 Device Space Required VXIbus Mainframe #1 16 KB MXIbus Device A 512 B MXIbus Device B 0 B VXIbus Mainframe #2 0 B VXIbus Mainframe...

Programming Considerations Chapter 5 VXI-MXI User Manual 5-26 © National Instruments Corporation Resource Manager Mainframe: Amount of A16 space required for this mainframe: Round up to next address break: First Level MXIbus Link: Amount of A16 space required for devices connected to this VXI-MXI: R...

Programming Considerations Chapter 5 VXI-MXI User Manual 5-28 © National Instruments Corporation MXIbus Link: Device: Amount of A16 space required by this device: A16 space requirement for each second level MXIbus link connected to this device: #1 + #2 = Round up to next address break:Total amount o...

Chapter 5 Programming Considerations © National Instruments Corporation 5-29 VXI-MXI User Manual Worksheets for Planning Your VXIbus/MXIbus A16 Address Map Use the worksheets on the following pages for planning an A16 address map for your VXIbus/MXIbus system. Follow the procedures used to fill out ...

Chapter 5 Programming Considerations © National Instruments Corporation 5-35 VXI-MXI User Manual Multiframe RM Operation On power-up, all MXIbus devices are isolated from each other because all address mappingwindows are disabled. The multiframe RM performs the following: • Identifies all devices in...

Programming Considerations Chapter 5 VXI-MXI User Manual 5-36 © National Instruments Corporation b. Repeats Step 2 recursively. c. Sets the VXI-MXI inward logical address mapping window to cover the range up to (but not including) the VXI-MXI with the next highest logical address thatwas found in th...

Chapter 5 Programming Considerations © National Instruments Corporation 5-37 VXI-MXI User Manual The RM performs the following steps: 1. Scans logical addresses (0 to FF) and identifies all devices in VXIbus Mainframe #1. Finds the VXI-MXIs at logical addresses 2 and 4 and moves DC devices to the lo...

Programming Considerations Chapter 5 VXI-MXI User Manual 5-38 © National Instruments Corporation 9. Enables the logical address window of the VXI-MXI in VXIbus Mainframe #2 for the entire inward mapping range of 0 to FF. Scans all logical addresses, skipping all previouslyencountered devices and def...

Chapter 5 Programming Considerations © National Instruments Corporation 5-39 VXI-MXI User Manual System Administration and Initiation System self-test administration, hierarchy configuration, and initiation of normal operation arehandled as defined in the VXIbus specification. A general-purpose mult...

© National Instruments Corporation 6-1 VXI-MXI User Manual Chapter 6Theory of Operation A brief description of the VXI-MXI is given in Chapter 2 along with a functional block diagram(see Figure 2-1). The major elements of the VXI-MXI are discussed in more detail in thischapter. For a detailed discus...

Theory of Operation Chapter 6 VXI-MXI User Manual 6-2 © National Instruments Corporation VMEbus Control Signals Transceivers The VMEbus control signals transceivers control the sending and receiving of the VMEbuscontrol signals such as address strobe (AS*), the data strobes (DS1*, DS0*), longword(LW...

Chapter 6 Theory of Operation © National Instruments Corporation 6-3 VXI-MXI User Manual The Synchronous protocol is a single trigger line broadcast that does not require an acknowledgefrom its acceptors. The source must assert the trigger for a minimum of 30 ns and allow at least50 ns between asser...

Chapter 6 Theory of Operation © National Instruments Corporation 6-5 VXI-MXI User Manual Multiple MXIbus devices can interrupt on the same interrupt line; therefore, a MXIbus interruptacknowledge daisy-chain is required. The MXIbus GIN and GOUT signals are normally usedfor the arbitration bus grant ...

Theory of Operation Chapter 6 VXI-MXI User Manual 6-6 © National Instruments Corporation The VMEbus interrupt lines can be individually driven by writing to the Interrupt Status/ControlRegister. When one of these interrupt requests is serviced by an interrupt handler, theinformation in the Status/ID...

Chapter 6 Theory of Operation © National Instruments Corporation 6-7 VXI-MXI User Manual complete when the responding device sends DTACK* and the VXI-MXI releases the data strobeand address strobe. The VXI-MXI interface supports 8-bit, 16-bit, and 32-bit reads and writesacross the MXIbus. The least ...

Theory of Operation Chapter 6 VXI-MXI User Manual 6-8 © National Instruments Corporation Table 6-3. Transfer Responses for VMEbus Address Modifiers AM5 AM4 AM3 AM2 AM1 AM0 Transfer Type H H H H H H A24 supervisory block transfer H H H H H L A24 supervisory program access H H H H L H A24 supervisory ...

Chapter 6 Theory of Operation © National Instruments Corporation 6-9 VXI-MXI User Manual Table 6-4. VMEbus/MXIbus Transfer Size Comparison VMEbus MXIbus Byte Locations DS1* DS0* A01 LWORD* Size AD01 AD00 D24-31 D16-23 D08-15 D00-07 8-bit Transfers Byte(0) 0 1 0 1 0 0 0 Byte(0) Byte(1) 1 0 0 1 0 0 1 ...

Theory of Operation Chapter 6 VXI-MXI User Manual 6-10 © National Instruments Corporation VXI-MXI VXI-MXI VXIbus Mainframe #1 VXIbus Mainframe #2 MXIbus VMEbus VMEbus Slave Slave Master Master Slave Slave Figure 6-2. Deadlock Situation If the VXI-MXI responds with a VMEbus BERR* to a transfer initia...

Chapter 6 Theory of Operation © National Instruments Corporation 6-11 VXI-MXI User Manual Table 6-3. When a transfer involving an address in one of the inward windows is detected, theVXI-MXI begins arbitrating for the VMEbus. When the VXI-MXI wins the VMEbus, theMXIbus transfer is converted into a V...

Theory of Operation Chapter 6 VXI-MXI User Manual 6-12 © National Instruments Corporation MXIbus specifies trapezoidal bus transceivers to reduce noise and crosstalk in the MXIbustransmission system. These transceivers have open collector drivers that generate precisetrapezoidal waveforms with typic...

© National Instruments Corporation A-1 VXI-MXI User Manual Appendix ASpecifications Capability Codes VMEbus Capability Code Description MA32, MA24, MA16 Master Mode A32, A24, and A16 addressing SA32, SA24, SA16 Slave Mode A32, A24, and A16 addressing MD32, MD16, MD08(EO) Master Mode D32, D16, and D0...

Specifications Appendix A VXI-MXI User Manual A-2 © National Instruments Corporation MXIbus Capability Code Description MA32, MA24, MA16 Master Mode A32, A24, and A16 addressing SA32, SA24, SA16 Slave Mode A32, A24, and A16 addressing MD32, MD16, MD08(EO) Master Mode D32, D16, and D08 data sizes SD3...

Appendix A Specifications © National Instruments Corporation A-3 VXI-MXI User Manual Safety Not applicable Shock and Vibration Not applicable Physical Board size Fully shielded VXI C-size board(9.187 in. by 13.386 in.; 233.35 mm by 340 mm) Connectors Single fully implemented MXIbus connectorSingle I...

© National Instruments Corporation C-1 VXI-MXI User Manual Appendix CVXI-MXI Component Placement This appendix contains instructions on opening the VXI-MXI module, and removing andreinstalling the optional INTX daughter card. This appendix also contains parts locator diagramsof the VXI-MXI and the I...

Appendix C VXI-MXI Component Placement © National Instruments Corporation C-3 VXI-MXI User Manual Removing the INTX Daughter Card from the VXI-MXI Under normal circumstances you will not need to remove the INTX card from the VXI-MXImodule. You have easy access to the INTX terminators and CLK10 mappi...

VXI-MXI Component Placement Appendix C VXI-MXI User Manual C-4 © National Instruments Corporation Figure C-3 is a parts locator diagram of the front side of the INTX daughter card, showing thelocation of the various components. Figure C-3. VXI-MXI INTX Parts Locator Diagram (Front View) Installing t...

© National Instruments Corporation D-1 VXI-MXI User Manual Appendix DConnector Descriptions This appendix describes the connector pin assignments for the MXIbus connector and the INTXconnector. MXIbus Connector The MXIbus signals are assigned to the device connector as shown in Figure D-1 and Table ...

Connector Descriptions Appendix D VXI-MXI User Manual D-2 © National Instruments Corporation The MXIbus defines 49 active signals, 12 ground lines, and 1 line for terminator power. TableD-2 describes the signals on the MXIbus connector and groups them in five categories. Table D-2. MXIbus Signal Gro...

Appendix D Connector Descriptions © National Instruments Corporation D-3 VXI-MXI User Manual INTX Connector The INTX connector is used only on VXI-MXIs with the INTX daughter card option. The INTXsignals are assigned to the device connector as shown in Figure D-2 and Table D-3. 44 43 42 41 40 39 38 ...

© National Instruments Corporation E-1 VXI-MXI User Manual Appendix EConfiguring a Two-Frame System This appendix describes how to configure a system containing two mainframes linked byVXI-MXI modules. Configuring VXI-MXIs for a Two-Frame System The factory configuration of the VXI-MXI is suitable f...

Configuring a Two-Frame System Appendix E VXI-MXI User Manual E-6 © National Instruments Corporation Configuration Requirements for Two-Frame System This section contains miscellaneous information you need to consider as you configure atwo-frame system. BTO Unit Notice that although the VXI-MXI in F...

Technical Support Form Photocopy this form and update it each time you make changes to your software or hardware, and use the completedcopy of this form as a reference for your current configuration. Completing this form accurately before contactingNational Instruments for technical support helps ou...

VXI-MXI Hardware and SoftwareConfiguration Form Record the settings and revisions of your hardware and software on the line to the right of each item. Complete anew copy of this form each time you revise your software or hardware configuration, and use this form as areference for your current config...

Other Products • Other MXIbus Devices in System Manufacturer Model Function Slot Logical Address • Other VXIbus Devices Manufacturer Model Function Slot Logical Address • Address Space(s) and Size(s) of Other Devices: _________________________________________________ ________________________________...

Documentation Comment Form National Instruments encourages you to comment on the documentation supplied with our products. Thisinformation helps us provide quality products to meet your needs. Title: VXI-MXI User Manual Edition Date: October 1993 Part Number: 320222-01 Please comment on the complete...

© National Instruments Corporation Glossary-1 VXI-MXI User Manual Glossary ___________________________________________________ Prefix Meaning Value n- nano- 10 -9 µ- micro- 10 -6 m- milli- 10 -3 K- kilo- 10 3 M- mega- 10 6 g- giga- 10 9 Symbols ° degrees ohms % percent ± plus or minus A A amperes A1...

Glossary VXI-MXI User Manual Glossary-6 © National Instruments Corporation I IACK Interrupt Acknowledge IC Integrated Circuit IEEE Institute of Electrical and Electronics Engineers IEEE 1014 The VME specification. in. inches I/O input/output; the techniques, media, and devices used to achievecommuni...

© National Instruments Corporation Index-1 VXI-MXI User Manual I n d e x A A16 Window Map Register, 4-14 to 4-17 bit descriptions, 4-14 to 4-15, 4-16definition, 2-7description, 4-14example, 4-15format CMODE bit cleared, 4-14CMODE bit set, 4-16 planning VXIbus/MXIbus system A16 address map examples, ...

Index VXI-MXI User Manual Index-2 © National Instruments Corporation A32EN, 4-22, 4-23A32HIGH[7-0], 4-24A32LOW[7-0], 4-24A32SIZE[2-0], 4-23ACCDIR, 4-7ACFAIL, 4-47ACFAILIE, 4-47ACFAILIN, 4-29ACFAILINT, 4-46ACFAILOUT, 4-29ADDR, 4-4ASIE, 4-44ASINT*, 4-44BKOFF, 4-46BKOFFIE, 4-46BOFFCLR, 4-35CMODE, 4-32D...

Index VXI-MXI User Manual Index-8 © National Instruments Corporation SUBCLASS bit, 4-30Subclass Register, 4-30switches. See jumpers and switches.Synchronous protocol, 6-3SYSFAIL bit, 4-46SYSFAIL signal, 2-5, 6-3SYSFAILIE bit, 4-46SYSFAILIN bit, 4-29SYSFAILINT bit, 4-47SYSFAILOUT bit, 4-29SYSFIN bit,...