Beetle - a readout chip for LHCb

 

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Measurements with Beetle 1.2

01.08.2002 Beetle 1.2 is alive!

Up to now the following was tested:
  • power-up reset works
  • I2C-Interface works fine
  • chip accepts triggers and starts readout
  • 16 consec. triggers are consumed before FifoFull gets active
  • DataValid has right lenght (875 ns) and spacing of 1 cycle between consecutive readout bursts.
  • data header is correctly encoded: contains 8 info bits + 8-bit
  • pipeline column number
  • chip provides latency of 160 cycles
Beetle 1.2 readout burst
The screenshot shows a readout burst: 1 MIP signals are coupled into 11 different channels and read out via a single port
   
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Letzte Änderung: 1 Aug 2002