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© National Instruments Corporation vii VXI-MXI User Manual
Chapter 6
Theory of Operation
.......................................................................................................... 6-1
VMEbus Address and Address Modifier Transceivers.................................................. 6-1
VXIbus System Controller Functions ............................................................................ 6-1
VMEbus Data Transceivers ........................................................................................... 6-1
VMEbus Control Signals Transceivers.......................................................................... 6-2
VMEbus Requester and Arbiter Circuitry ..................................................................... 6-2
TTL and ECL Trigger Lines and CLK10 Circuitry....................................................... 6-2
SYSFAIL, ACFAIL, and SYSRESET........................................................................... 6-3
Interrupt Circuitry .......................................................................................................... 6-3
Parity Check and Generation ......................................................................................... 6-6
A32, A24, A16, and LA Windows................................................................................. 6-6
VXI-MXI Configuration Registers ................................................................................ 6-6
MXIbus Master Mode State Machine............................................................................ 6-6
MXIbus Slave Mode State Machine .............................................................................. 6-10
MXIbus Address/Data and Address Modifier Transceivers .......................................... 6-11
MXIbus System Controller Functions ........................................................................... 6-12
MXIbus Control Signals Transceivers........................................................................... 6-12
MXIbus Requester and Arbiter Circuitry....................................................................... 6-12
Appendix A
Specifications
........................................................................................................................ A-1
Appendix B
Mnemonics Key
................................................................................................................... B-1
Appendix C
VXI-MXI Component Placement
.................................................................................. C-1
Removing the Metal Enclosure from the VXI-MXI...................................................... C-1
Removing the INTX Daughter Card from the VXI-MXI .............................................. C-3
Installing the INTX Daughter Card onto the VXI-MXI ................................................ C-4
Appendix D
Connector Descriptions
..................................................................................................... D-1
MXIbus Connector......................................................................................................... D-1
INTX Connector ............................................................................................................ D-3
Appendix E
Configuring a Two-Frame System
................................................................................ E-1
Configuring VXI-MXIs for a Two-Frame System ........................................................ E-1
Configuration Requirements for Two-Frame System.................................................... E-6
BTO Unit............................................................................................................ E-6
Logical Addresses .............................................................................................. E-6
CLK10 Mapping ................................................................................................ E-6
Appendix F
Customer Communication
............................................................................................... F-1
Glossary ...................................................................................................................... Glossary-1
Index .................................................................................................................................. Index-1