ECON‐T Configuration

The ECON-T has many different output modes and, after discussion with Jeremy and Cristina, we were able to deduce a good guess at what the output mode settings for the ECON-T should be for the Ecal and Hcal.

Hcal

• 3 eTx: FormatterBuffer.Global.active_etx = 0b111
• 8 eRx: erx.NN_enable (exact NN set depend on indexing and which ROCs/channels are in use)
• might want to use the multiplexer later to map e.g. ECON-T-0 eRx0 to ROC0 TRG instead of ROC1-TRG3 (the current default), this is interwoven with cabling since our goal is to have both ends of a quad bar summed into super trigger cells (STCs) by the ECON-Ts.
• have 5E+4M encoding using all 9 bits: AlgoDroplsb.Global.drop_lsb = 1
• select STC algorithm: ConfigAlgo.Global.alg_type = 1
• FormatterBuffer.global.stc_type = 0 choose STC4 instead of the default STC16 (stc_type = 1)

Ecal

• 12 eRx: erx.NN_enable = 1 for all NN:6 ROCs each with 2 halves -> all 12 eRx in use (like the ECON-D)
• 4? eTx: FormatterBuffer.Global.active_etx = 0xf, not confident in this guess
• same comments about multiplexer since not sure how the ROCs are indexed in the ECON-T
• determine encoding for output results
• we will want the "Best Choice" algorithm (which returns a sum over all input trigger cells (TCs) which is a whole module in our design and the N highest energy TCs where N depends on the number of eTx/eRx). ConfigAlgo.Global.alg_type = 3
• since we have HD modules, we'll want to select the high density version of the Best Choice algo: ConfigAlgo.Global.alg_high_density = 1