Difference between revisions of "Busy Box and related"

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Traditionally the Fee in ALICE sub-detectors indicates when its buffers are full and cannot handle further triggers from the CTP. This is either done directly or through the FANIN module to the LTU with a busy signal.
 
Traditionally the Fee in ALICE sub-detectors indicates when its buffers are full and cannot handle further triggers from the CTP. This is either done directly or through the FANIN module to the LTU with a busy signal.
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Due to dense cabling, four of ALICE sub-detectors (TPC, PHOS, FMD and EMCal), utilize a BusyBox to keep track of free buffers in their Fec. The BusyBox asserts the busy signal to the LTU when one of these conditions is true: Buffers in Fec are full, upon receiving a trigger sequence from TTC or when the TTC sends a global reset to the Fee. The BusyBox is located in the DAQ counting rom.
 
Due to dense cabling, four of ALICE sub-detectors (TPC, PHOS, FMD and EMCal), utilize a BusyBox to keep track of free buffers in their Fec. The BusyBox asserts the busy signal to the LTU when one of these conditions is true: Buffers in Fec are full, upon receiving a trigger sequence from TTC or when the TTC sends a global reset to the Fee. The BusyBox is located in the DAQ counting rom.
  
 
=== Download Section ===
 
=== Download Section ===
 
[[Electronics_for_the_Time_Projection_Chamber_%28TPC%29#RCU_Trigger_Receiver_Module|RCU Trigger Receiver Module]]
 
[[Electronics_for_the_Time_Projection_Chamber_%28TPC%29#RCU_Trigger_Receiver_Module|RCU Trigger Receiver Module]]
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[[Media:master_thesis_magne_munkejord.pdf|Master Thesis, Magne Munkejord]]
  
 
[[Category:Trigger]]
 
[[Category:Trigger]]

Revision as of 20:21, 19 February 2009

Overview

Traditionally the Fee in ALICE sub-detectors indicates when its buffers are full and cannot handle further triggers from the CTP. This is either done directly or through the FANIN module to the LTU with a busy signal.

Due to dense cabling, four of ALICE sub-detectors (TPC, PHOS, FMD and EMCal), utilize a BusyBox to keep track of free buffers in their Fec. The BusyBox asserts the busy signal to the LTU when one of these conditions is true: Buffers in Fec are full, upon receiving a trigger sequence from TTC or when the TTC sends a global reset to the Fee. The BusyBox is located in the DAQ counting rom.

Download Section

RCU Trigger Receiver Module

Master Thesis, Magne Munkejord