PROM #4 in the Framework MTG
                   Timing Specification File

           Timing Specification File Revision:   17-MAR-1992

             PROM Timing Waveform Serial Number:   4L




PROM 4 of the Framework MTG supplies the signals for MTG channels 25
through 32.

All numeric data in all Timing Specification Files is in decimal.

The PROM pattern in this file for 6 bunch on 6 bunch operation
begins at address 100 and plays through address 651.
This is 6 Beam Crossing Sections of 92 "Ticks" each.

The PROM pattern in this file for 4 bunch on 4 bunch operation
begins at address 1100 and plays through address 1655.
This is 4 Beam Crossing Sections of 139 "Ticks" each.


Revision Information:
---------------------

    The Rev L file is derived from the Rev K file.  The only difference is
that the Beam Crossing Gates have been stretched 5 ticks longer.


    Channel                   Function
   ---------    ------------------------------------------------------------
       25        P1 Crossing Beam Crossing Gate
       26        P2 Crossing Beam Crossing Gate
       27        P3 Crossing Beam Crossing Gate
       28        P4 Crossing Beam Crossing Gate
       29        P5 Crossing Beam Crossing Gate
       30        P6 Crossing Beam Crossing Gate
       31        Last 4 "Ticks" of an Accelerator Turn
       32        4 "Ticks" After the Last "Tick" of an Accelerator Turn


Notes:  None of these signals are repeated in the various Beam Crossing
        sections of an Accelerator Turn.

        The Beam Crossing Gate signals are high during the period where
        the information from a given Beam Crossing is being processed.
        E.G.  P1 is high during the period when the event data from the
        P1 Beam Crossing is being processed.

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; Framework MTG Channel #25 is used to make the P1 Beam Crossing Gate Signal.

Channel #25,  Down_At 0,  Up_At 193,  Down_At 270       ; P1 Gate.



; Framework MTG Channel #26 is used to make the P2 Beam Crossing Gate Signal.

Channel #26,  Down_At 0,  Up_At 285,  Down_At 362       ; P2 Gate.



; Framework MTG Channel #27 is used to make the P3 Beam Crossing Gate Signal.

Channel #27,  Down_At 0,  Up_At 377,  Down_At 454       ; P3 Gate.



; Framework MTG Channel #28 is used to make the P4 Beam Crossing Gate Signal.

Channel #28,  Down_At 0,  Up_At 469,  Down_At 546       ; P4 Gate.



; Framework MTG Channel #29 is used to make the P5 Beam Crossing Gate Signal.

Channel #29,  Down_At 0,  Up_At 561,  Down_At 638       ; P5 Gate.



; Framework MTG Channel #30 is used to make the P6 Beam Crossing Gate Signal.

Channel #30,  Down_At 0,  Up_At 101,  Down_At 178       ; P6 Gate.



; Framework MTG Channel #31 is the Last 4 "Ticks" of an Accelerator Turn.

Channel #31,  Down_At 0,  Up_At 648,  Down_At 652      ; Last 4 "Ticks" of
                                                       ; an Accelerator Turn.



; Framework MTG Channel #32 is 4 "Ticks" After the Last "Tick"
; of an Accelerator Turn.

Channel #32,  Down_At 0,  Up_At 652,  Down_At 656      ; 4 "Ticks" After the
                                                       ; Last Tick of a Turn.

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;   Now setup the timing pattern for the 4 bunch on 4 bunch operation.
;  --------------------------------------------------------------------

;  NOTE:  All of these signals are EXPLICITLY specified for 4 on 4 operation.


; Framework MTG Channel #25 is used to make the P1 Beam Crossing Gate Signal.

Channel #25,  Down_At 1024,  Up_At 1240,  Down_At 1364       ; P1 Gate.



; Framework MTG Channel #26 is used to make the P2 Beam Crossing Gate Signal.

Channel #26,  Down_At 1024,  Up_At 1379,  Down_At 1503       ; P2 Gate.



; Framework MTG Channel #27 is used to make the P3 Beam Crossing Gate Signal.

Channel #27,  Down_At 1024,  Up_At 1518,  Down_At 1642       ; P3 Gate.



; Framework MTG Channel #28 is used to make the P4 Beam Crossing Gate Signal.

Channel #28,  Down_At 1024,  Up_At 1101,  Down_At 1225       ; P4 Gate.



; Framework MTG Channel #29 is used to make the P5 Beam Crossing Gate Signal.

Channel #29,  Down_At 1024      ; There is no P5 Gate with 4 on 4.



; Framework MTG Channel #30 is used to make the P6 Beam Crossing Gate Signal.

Channel #30,  Down_At 1024      ; There is no P6 Gate with 4 on 4.


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; Framework MTG Channel #31 is the Last 4 "Ticks" of an Accelerator Turn.

Channel #31,  Down_At 1024,  Up_At 1652,  Down_At 1656   ; Last 4 "Ticks" of
                                                         ; an Accelerator Turn.



; Framework MTG Channel #32 is 4 "Ticks" After the Last "Tick"
; of an Accelerator Turn.

Channel #32,  Down_At 1024,  Up_At 1656,  Down_At 1660   ; 4 "Ticks" After the
                                                         ; Last Tick of a Turn.



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