Trigger, DAQ, calibration

1
Trigger, DAQ, calibration

• Robert Sulej, pazdziernik 2007

2
Trip-t Front-End Board (TFB)
GAIN SPLITTING COMPONENTS
PROM
Trip-t
Trip-t
Spartan 3 XCS2000
Trip-t
Trip-t
HV trim DAC
MINIATURE COAX CONNECTORS
5V
I2C
DATA
3.3V
ADC
ADC
POWER
TRIG
2.5v
1.2V
3
Spill Structure
Spill Structure
Bunch Structure
Chip Time Structure
integration
reset
A. Weber
4
Trip-t Front-End Board (TFB)
5
Trigger Path
amp
PD
disc
output driver
FE FPGA (TFB)
Vref
10-20 m

• FE FPGA
• channel mask (64ch)
• look for trigger primitives
• N hits in 10 nsec window
• drive output
• Trigger FPGA
• require certain FE FPGA hit pattern

Trigger FPGA(CTM)
SCINTtrigger
TPCtrigger
A. Weber, KEK, 2007-09-25
6
System Overview
AcronymsTFB TRIP-t front-end boardRMM r/o
merger moduleCTM cosmic trigger
moduleMCM master clock moduleSCM slave clock
moduleFPN front-end proc. node (PC)
Trigger Primitives
TFB0
Clk trg
data
RMM0
CTM
FPN
Gigabit/Ethernet
Cosmic trigger
Clk trg
Clk trg
Gigabit/Ethernet
Clk trg
calibration trigger
MCM
SCM
FPN
Gigabit/Ethernet
GPS 1Hz/100MHz
front end
Spill trig
TPC/FGD
FPN
calibration triggerlaser?
A. Weber, KEK, 2007-09-25
7
Trigger Sequence - Spill Structure Cosmics
Spill Trigger
0
1
Spill Number
(260ns 58ns) x 23 7.31us (time may change)
5.17us
23 Batches / Bunch
Spill Structure (Bunch)
1 Batch of N hits
58ns
260ns
3.53s
Detector Hits
Into TFB
Cosmics
1 ms ave.
Trigger Primitives (1KHz - 1ms ave)
From TFB
Trigger Primitives (1 or 2 bits. Tx at 100MHz )
1 us
Cosmic Trigger (Event)
From CTM
Cosmic Trigger Word (Packet) No. of Bits ?
Valid Event to Readout
From MCM to RMM via SCM
1-10 us?
Optical Trigger Rate 20 Hz
1 us
50 ms typ.
Readout Trigger
From RMM
TFB Event Data (8K Bytes)
RMM Collective Event Data (350K Bytes)
D. AllenA. Weber
8
DAQ architecture
G. F. Pearce, KEK, 04-2007