SBS Technologies 466-1, Hardware Manual

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Model 466-1 Adapter
ix
6.2.7 Remote IACK Read Register.......................................... 59
Chapter 7: CSR Accessed From The VMEbus......................................61
7.0 Introduction.................................................................................... 61
7.1 Local Node Registers ...................................................................... 61
7.1.1 VMEbus Command Register.......................................... 62
7.1.2 VMEbus Status Register ................................................ 63
7.1.3 Interrupt Vector Register................................................ 64
Chapter 8: Common Procedures And Programming Sequences........65
8.0 Introduction.................................................................................... 65
8.1 Adapter Initialization And Testing ................................................. 65
8.2 Making A Page Mode Access To VMEbus Or Dual Port RAM ....... 66
8.3 Making A Direct Mode Access To VMEbus Or Dual Port RAM..... 66
8.4 How To Acknowledge A VMEbus Backplane Interrupt .................. 67
8.5 How To Acknowledge A Programmed Interrupt (PT) From
VMEbus................................................................................................ 67
8.6 How To Cause A VMEbus Interrupt ............................................... 68
8.7 Using The Lock VMEbus Bit To Simulate Atomic (Indivisible
Cycle) Operations.................................................................................. 69
8.8 Modifying The Control Registers.................................................... 70
Chapter 9: Common Problems And Solutions .....................................71
9.0 Introduction.................................................................................... 71
9.1 Runtime Symptoms Of Address Conflicts ....................................... 71
9.2 Data Transfer Errors....................................................................... 72
9.2.1 Local Status Register Bit 7: Interface Parity Error ......... 72
9.2.2 Local Status Register Bit 6: Remote VMEbus Error ...... 73
9.2.3 Local Status Register Bit 2: Interface Timeout .............. 74
9.3 Dual Port RAM Alignment............................................................. 75
9.4 Bus Error Or Unexpected Status ID (Interrupt Vector) Returned
When Reading IACK Read Register ...................................................... 76
9.5 Using The VMEbus Adapter Card LEDs As Diagnostic Tools ........ 77
Appendix A: Glossary............................................................................79
Appendix B: VMEbus Addressing.........................................................83
Appendix C: Changes To VMEbus Adapter Card Default Jumper
Settings And Jumper Blocks..................................................................87
C.1 VMEbus Adapter Card Jumper Blocks........................................... 88