Block Structure of the April 1992 COMINT PROM's
          ---------------------------------------------------

                                                          Rev.  20-APR-1992

                                      BLOCK
           BLOCK LENGTH IN       STARTING LOCATION
        ---------------------   -------------------
Block   967 ITEMS   LONGWORDS   967 ITEM   LONGWORD
Numbr    DECIMAL     DECIMAL    DECIMAL    ADRS HEX           CONTENTS
-----   ---------------------   -------------------   ----------------------

** "0"     "10"         5        "    "   $305000      Crate Header

  1        532        266            1    $300004      Current Framework

  2       1280        640          535    $300430      Current CTFE Et Data

  3        532        266         1817    $300E34      Previous Framework

  4       1280        640         2351    $301260      Previous CTFE Et Data

  5        130         65         3633    $301C64      EM Et Jet List

  6        130         65         3765    $301D6C      Total Et Jet List

  7        640        320         3897    $301E74      Mask of Jet Patterns

  8        320        160         4539    $302378      TRD Hot Tower Table

  9         82         41         4861    $3025FC      Spec Trig Prog  vs
                                                         EM or Tot Et Ref Set
                                                       Spec Trig Prog Fired vs
                                                         EM or Tot Et Ref Set
                                                       Spec Trig Prog  vs
                                                         Super Tower Ref Set

 10         40         20         4945    $3026A4      Super Tower Jet Pattern

 11         72         36         4987    $3026F8      Level 1.5 Data

 12         12          6         5061    $30278C      Absolute Time data

 13        340        170         5075    $3027A8      Additional Level 1
                                                       Scalers and Foreign
                                                       Scalers

**"14"    "256"       128        "5417"   $304000      Pulser Programming Data



    Notes:  The symbol ** implies that this line is for reference only.  This
            is NOT part of the COMINT PROM's.

            From the start of the Header through the L1 & Foreign Scalers is
            a total of 2714 LongWords.

            From the start of the Header through the Pulser Programming Data
            is a total of 2843 LongWords  (equals 11,372 Bytes).