XIA microDXP, Technical Reference Manual

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microDXP Technical Reference Manual Version 3.15
October 7, 2019 70
14 SCATIMEON Assertion time (in clock periods) of the SCA real-
time digital outputs
15 SCATIMEOFF Minimum off time (in clock periods) of the SCA
real-time digital outputs
16 SCA0LIMLO Lower limit for SCA0
17 SCA0LIMHI Upper limit for SCA0
18 SCA1LIMLO Lower limit for SCA1
19 SCA1LIMHI Upper limit for SCA1
20 SCA2LIMLO Lower limit for SCA2
21 SCA2LIMHI Upper limit for SCA2
22 SCA3LIMLO Lower limit for SCA3
23 SCA3LIMHI Upper limit for SCA3
Appendix D. PARSET Specification
Twenty-four PARSET tables each correspond to a Peaking Time , i.e. these are all the
parameters that are stored and retrieved for each Peaking Time . See §2.5 for details.
ID Parameter Description
0 NUMPARSET Number of PARSET parameters NOT including
NUMPARSET and PARVERSION (used
internally)
1 PARVERSION PARSET version number (used internally)
2 FASTLEN Fast filter ramp length
3 FASTGAP Fast filter gap
4 FSCALE Controls FiPPI fast filter scaling
5 MINWIDTH Minimum time above threshold for fast filter
6 MAXWIDTH Maximum time above threshold for fast filter
(detects fast filter pileup)
7 SLOWLEN Slow Filter Ramp length
8 SLOWGAP Slow Filter gap
9 PEAKMODE Peak Sensing (0) or Peak Sampling (1)
10 PEAKINT Minimum spacing between pulses
11 PEAKSAM Energy Sampling point
12 BFACTOR Ratio between slow and intermediate filters
13 BLFILTER Baseline filter average length = 32768/BLFILTER
14 THRESHOLD Fast filter threshold corresponding to the current
GENSET.
15 BASETHRESH Intermediate filter threshold corresponding to the
current GENSET. Needs to be set properly to get
good baselines.
16 SLOWTHRESH Energy filter threshold corresponding to the
current GENSET (only needed for light elements
– normally set to 0 to disable)
17-21 GAINTWEAK0-4 If non-zero, this per-GENSET parameter modifies
the GAINBASE setting in the GENSET to arrive
at the GAINDAC setting. E.g. If GENSET 3 is in
use, GAINDAC = GA GAINTWEAK
3.