Run IIA L1 Calorimeter Trigger

Presented by D. Edmunds         27-JAN-2004

Background and Context about Triggering in Run IIA:

• Trigger Levels in Run II.
  
• Current Run IIA Beam Structure and Definition of Terms.
  
• DAQ System Buffering.

Connections between the L1 Cal Trig and Other Systems:

• Level 1 Triggers and the L1 Trigger Framework.
  
• Connections between the L1 Cal Trig and Other Systems.
  

Layout of the L1 Cal Trig:

• Location of the L1 Cal Trig in MCH-1.
  
• Layout of the L1 Cal Trig Components in MCH-1.
  
• Location of L1 Cal Trig Components in the Racks.
  

BLS Trigger Tower Pickoff Signals -
the Input to the L1 Cal Trig:

• Trigger Tower Coordinate System.
  
• Map of Calorimeter Cells to Trigger Towers.
  
• Location of the BLS Trigger Tower Signal Sources.
  
• BLS Trigger Pickoff Signal Electrical Waveform.
  
• L1 Cal Trig CTFE Card Front-End Cell.
  

And-Or Terms Generated by the L1 Cal Trig:

• Current List of And-Or Terms Available in Run IIA.
  
• Example 1 of L1 Cal Trig And-Or Term Generation -
  Diagram of Generating Counts of Towers above Reference Set Threshold.
  
• Example 2 of L1 Cal Trig And-Or Term Generation -
  Text Explaning the Generation of L1 Cal Trig Quadrant Terms.
  

Download of Trigger Lists from COOR
through TCC into the L1 Cal Trig Hardware:

• Example of COOR Programming the L1 Cal Trig for a Beam Physics Run.
  
• Specification for the COOR to TCC Communication about the L1 Cal Trig.
  
• Communication Path between TCC and the L1 Cal Trig Hardware.
  
• Full Information about TCC and its TRICS Program.
  
• Manual Control of the L1 Cal Trig.
  

Monitoring the L1 Cal Trig:

• Trigger Monitor aka TrgMon.
  
• Example from ADC Monitor.
  
• L1 Cal Trig Examine - Example of Output.
  

Exercising and Testing the L1 Cal Trig:

• L1 Cal Trig Exerciser/Tester Menu.
  
• Example from the PROM Test.