TABLE OF CONTENTS
1. GENERAL DESCRIPTION ........................................................................................................................... 8
1.1. OVERVIEW ............................................................................................................................................... 8
1.2. BLOCK DIAGRAM .................................................................................................................................... 10
1.3. CONET LAYOUT ................................................................................................................................... 11
2. VME INTERFACE ....................................................................................................................................... 12
2.1. VME BUS REQUESTER ........................................................................................................................... 12
2.1.1. Fair and Demand Request modes .................................................................................................. 13
2.1.2. VME bus Release .......................................................................................................................... 13
2.2. ADDRESSING CAPABILITIES .................................................................................................................... 13
2.3. DATA TRANSFER CAPABILITIES .............................................................................................................. 14
2.4. INTERRUPT CAPABILITIES ....................................................................................................................... 14
2.5. CYCLE TERMINATIONS ........................................................................................................................... 15
2.6. SLAVE .................................................................................................................................................... 16
2.7. LOCATION MONITOR .............................................................................................................................. 17
2.8. VME BUS FIRST SLOT DETECTOR .......................................................................................................... 17
2.9. SYSTEM CONTROLLER FUNCTIONS ......................................................................................................... 18
2.9.1. System Clock Driver ..................................................................................................................... 18
2.9.2. Arbitration Module ........................................................................................................................ 18
2.9.2.1. Fixed Priority Arbitration Mode (PRI) ................................................................................ 18
2.9.2.2. Round Robin Arbitration Mode (RRS) ................................................................................. 18
2.10. BUS TIMER ............................................................................................................................................. 18
2.11. IACK DAISY CHAIN DRIVER .................................................................................................................. 19
2.12. VME64X CYCLES NOT YET IMPLEMENTED ............................................................................................ 19
2.13. INTERNAL REGISTERS ............................................................................................................................. 20
2.13.1. Status register ................................................................................................................................ 21
2.13.2. Control register .............................................................................................................................. 22
2.13.3. Firmware Revision register............................................................................................................ 22
2.13.4. Firmware Download register ......................................................................................................... 23
2.13.5. Flash Enable register ..................................................................................................................... 23
2.13.6. IRQ Status register......................................................................................................................... 23
2.13.7. IRQ Mask register ......................................................................................................................... 23
2.13.8. Input register .................................................................................................................................. 24
2.13.9. Output set register .......................................................................................................................... 24
2.13.10. Output clear register ...................................................................................................................... 25
2.13.11. Input Multiplexer Set register ........................................................................................................ 26
2.13.12. Input Multiplexer Clear register .................................................................................................... 27
2.13.13. Output Multiplexer Set register ..................................................................................................... 28
2.13.14. Output Multiplexer Clear register .................................................................................................. 29
2.13.15. LED Polarity set register ............................................................................................................... 29
2.13.16. LED polarity clear register ............................................................................................................ 30
2.13.17. Pulser A 0 register ......................................................................................................................... 30
2.13.18. Pulser A 1 register ......................................................................................................................... 30
2.13.19. Pulser B 0 register.......................................................................................................................... 31
2.13.20. Pulser B 1 register.......................................................................................................................... 31
2.13.21. Scaler 0 register ............................................................................................................................. 31
2.13.22. Scaler 1 register ............................................................................................................................. 32
2.13.23. Display Address Low register ....................................................................................................... 32
2.13.24. Display Address High register ....................................................................................................... 32
2.13.25. Display Data Low register ............................................................................................................. 32