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Dimuon raw data. Tracker team : Sylvain Rousseau, Cristian Coardos, Nicole Willis @ IPN Orsay , Frederic Lefevre @ Subatech Nantes Trigger team : Frederic Lefevre, Christophe Renard, Christian Finck, @ Subatech Nantes Pascal Dupieux @ LPC clermont Ferrand

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Dimuon raw data
Dimuon raw data

  • Tracker team : Sylvain Rousseau, Cristian Coardos, Nicole Willis @ IPN Orsay , Frederic Lefevre @ Subatech Nantes

  • Trigger team : Frederic Lefevre, Christophe Renard, Christian Finck, @ Subatech Nantes Pascal Dupieux @ LPC clermont Ferrand

  • + Alice DAQ group for all headers and lots of discussion



808 Patch busses

Max loaded crocus read 48 patch busses



A1

A3

A5

A7

A9

B2

B4

B6

B8

B10

A

B

Future numbering may change


Ldc tracker event structure
LDC Tracker event structure

Unless specified word means 32 bits

  • Event.h from Date IV : 32 words

  • Equipment header : 7 words

  • DDL header : 8 words

  • DATA from DSP A

  • DATA from DSP B

    • DSP data are of variable size


Dsp data structure
DSP data structure

  • Front end DSP Structure Total length

  • Raw data length

  • Front End DSP ID

  • 4 internal counters Linked to the trigger structure, (subject to change)

  • Padding (even size is required)

  • 5 front end DSP structures


Front end dsp data structure
Front end DSP data structure

  • Front end DSP Structure Total length

  • Raw data length

  • Front End DSP ID

  • 4 internal counters

    • Linked to the trigger structure, NOT STABLE

  • Event is odd flag (so one extra meaningless word is inserted at the end)

  • Raw data from patch busses


Raw data from patch busses
Raw data from patch busses

  • Patch busses data total length

  • Patch busses raw data length

  • Patch Id (see mapping)

  • Trigger word (not stable)

  • Raw data with or without zero suppression

    • An empty patch bus send its header : All patch busses must be present in the event.


Raw output from manu boards
Raw output from Manu boards

  • Manu Address (11 bits).

    • Not enough addr space to index all manu in the tracker-> local address on the bus patch

  • Channel address (6 bits)

    • Channel number in the manu. (1 .. 64)

  • Data 12 bits

    • Raw output (zero suppressed) out of the ADC.


Mapping is still unfinished
Mapping is still unfinished

  • The page is not white, some work exists but still discussion between daq, hlt and detectors

  • Agree on

    • Every manu (64 channel readout board) has a unique ID on its Crocus.

    • Try to design something nice for the hlt (bending vs non bending flag in the addr)


Alice Dimuon Trigger

D.A.R.C Board

DARC Board rev.2 :

Rev.2 Architecture with external TTCrx Board

Subatech – R. Berny / C. Renard

Turino – May 05-09 2003


Trigger daq
µ µ Trigger daq

  • 2 Darc boards

  • Each Darc

    • Reads 8 regional crate (left vs right)

    • Write to one DDL

  • 2 types of event

    • Physics

    • Software (electronic check up)


Ldc dimuon trigger daq format
LDC Dimuon trigger daq format

  • Event.h 32 words

  • Equipment header : 7 words

  • DDL header 8 words

  • Darc Id + version

  • Global Board input data 4 words

  • Global board output data 1 word

  • For each 8 crates on a DARC

    • Crate Id and hardware version

    • For each local trigger board (117 in total)

      • 5 words of trigger info (585 words in total)

  • I/O registers : 3 words (not stable)

  • End of event flag physic events : 2 words


Trigger info physic event
Trigger info (physic event)

64 bits of raw strip data (bit stream not 0 suppressed)

32 bits of addr, output and position

Software event : as above + 39 internal counters words



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