• the system forgets how it may have been programmed earlier by COOR or temporary overridden by a L1Cal expert
• the system forgets how it may have been mis-programmed earlier
• L1Cal TCC can verify that all resources are currently responding
• all programmable resources are initialized to their defined default.
  

1. If the lowest Reference Set allocated by COOR is #N, with N>0, TCC will program all Reference Set #M, with 0 < M < N to the same threshold as the one COOR defined for Reference Set #N.
2. If COOR defines two reference Sets #P and #R while leaving some Reference Set(s) #Q un-allocated, with P < Q < R, TCC will program #Q to the same threshold has the one COOR defined for Reference Set #R.
3. If the highest Reference Set allocated by COOR is #S, with S!=6, TCC will program all Reference Set #T, with S < T <= 6 to the default initial "don't pass threshold", i.e. 1000 GeV.
4. When all reference Sets are unallocated, they are all programmed by TCC to the default initial "don't pass threshold", i.e. 1000 GeV.

1. Inside the TAB a set of 6 flags are set for each phi-slice whenever a local maximum found by the jet algorithm satisfies the requirement that the ratio of the transverse energies in a 2x2 area divided by the ratio of the transverse energies in a 4x4 area is larger than a fixed value. Only the local maxima with a total energy larger than a given threshold are considered for the calculation of the Tau ratios.
2. Inside the GAB a Tau trigger is formed when within a same phi-slice we find a Jet object passing a given transverse energy threshold and the flag indicating that one of the jets found in that phi-slice satisfied the Tau ratio requirement. As in the case of the isolated EM object trigger the object which satisfy the transverse energy requirement and the object which satisfy the Tau ratio requirements may be two distinct objects within the same phi-slice.
3. The values of the Tau ratio thresholds are fixed in firmware and cannot be downloaded from TCC.

The X's below represent required attributes, the O's optional ones.
In addition to the attributes below, all terms take the optional
attributes `number', to explicitly specify which term to allocate,
`ownmode', to specify the coor ownership mode, and `require',
to specify the require/veto sense of the term in a term list.

<run2b.l1jet     thresh="X" count="X" maxeta="O" rsnumber="O"/>
<run2b.l1tau     thresh="X" count="X" maxeta="O" rsnumber="O"/>
<run2b.l1em      thresh="X" count="X" maxeta="O" rsnumber="O"/>
<run2b.l1iso_em  thresh="X" count="X" maxeta="O" rsnumber="O" emf="O" iso="O"/>
<run2b.l1miss_et thresh="X"/>
<run2b.l1tot_et  thresh="X"/>
<run2b.l1bb_em   thresh="X"   maxeta="O"   rsnumber="O"/>
<run2b.l1aco_jet thresh="X"   maxeta="O"   rsnumber="O"
                 thresh_v="O" maxeta_v="O" rsnumber_v="O"/>

Some notes.  Coor parameterizes reference sets in terms of a threshold
and a maximum eta (defaulting to the full calorimeter).  Outside the specified
eta range, the refset threshold will be set to the maximum.  Due to the
sorting requirement, not all combinations of threshold/maxeta will
be possible.  However, if the maxeta specified matches the hardwired
cutoff for a `central' term, that `central' term will be used,
with the refset itself including the full eta coverage.

The rsnumber attribute can be used to force allocation of a specific
reference set; otherwise, coor will choose.

For l1iso_em, the emfraction and isolation ratios may be specified.
If defaulted, they are taken as `0' (no requirement).
These settings must be the same for all l1iso_em terms used
at any one time.

l1aco_jet has two associated reference sets; the second (veto) is specified
via the attributes ending in `_v'.  If they are all defaulted, then
the two reference sets used will be identical.  (This is the only
configuration that's allowed by the current firmware, anyway.)

• "L1CAL_Ref_Set Jet_Et_Ref_Set T=0 TT_Eta(-16:16) TT_Phi(1:32) Energy_Threshold <Et in GeV, e.g. 10.0>" (sent only once)
• "L1CAL_Ref_Set Jet_Use_ICR <0/1>" (sent only once)
• "L1CAL_Ref_Set Jet_Et_Ref_Set <T=1:6> TT_Eta(-16:16) TT_Phi(1:32) Energy_Threshold <Et in GeV, e.g. 10.0>" (sent once per reference set)

• "L1CAL_to_L1FW Jet_All_Term <P=0:15> Use_Ref_Set <T=1:6> Count_Threshold <N=1:4>"  (as needed)
• "L1CAL_to_L1FW Jet_Central_Term <P=0:3> Use_Ref_Set <T=1:6> Count_Threshold <N=1:4>" (as needed)

• "L1CAL_Ref_Set EM_Et_Ref_Set T=0 TT_Eta(-16:16) TT_Phi(1:32) Energy_Threshold <Et in GeV, e.g. 10.0>" (sent only once)
• "L1CAL_Ref_Set EM_Et_Ref_Set  <T=1:6> TT_Eta(-16:16) TT_Phi(1:32) Energy_Threshold <Et in GeV, e.g. 10.0>" (sent once per reference set)

• "L1CAL_to_L1FW EM_All_Term <P=0:11> Use_Ref_Set <T=1:6> Count_Threshold <N= 1:4>" (as needed)
• "L1CAL_to_L1FW EM_Central_Term <P=0:3> Use_Ref_Set  <T=1:6> Count_Threshold <N=1:4>" (as needed)

• "L1CAL_Ref_Set EM_Et_Ref_Set T=0 TT_Eta(-16:16) TT_Phi(1:32) Energy_Threshold <Et in GeV, e.g. 10.0>" (sent only once, if this hasn't already been done for the EM triggers without isolation and if isothresh is the lowest of the 1+6 EM thresholds).
• "L1CAL_Ref_Set EM_Isolation_Et TT_Eta(-16:16) TT_Phi(1:32) EM_Et_Ref_Set <RS_Number>" (sent only once)
• "L1CAL_Ref_Set EM_Et_Ref_Set  <T=1:6> TT_Eta(-16:16) TT_Phi(1:32) Energy_Threshold <Et in GeV, e.g. 10.0>" (sent once per reference set)

• "L1CAL_to_L1FW Isolated_EM_All_Term  <P=0:1> Use_Ref_Set  <T=1:6> Count_Threshold <N=1:2>" (as needed)
• "L1CAL_to_L1FW Isolated_EM_Central_Term  <P=0:1> Use_Ref_Set  <T=1:6> Count_Threshold <N=1:2>" (as needed)

• "L1CAL_Ref_Set Jet_Et_Ref_Set T=0 TT_Eta(-16:16) TT_Phi(1:32) Energy_Threshold <Et in GeV, e.g. 10.0>" (sent only once)
• "L1CAL_Ref_Set Jet_Use_ICR <0/1>" (sent only once)
• "L1CAL_Ref_Set Jet_Et_Ref_Set <T=1:6> TT_Eta(-16:16) TT_Phi(1:32) Energy_Threshold <Et in GeV, e.g. 10.0>" (sent once per reference set)
• "L1CAL_Ref_Set Min_Tau_Et_Ref_Set TT_Eta(-16:16) TT_Phi(1:32) Energy_Threshold <Et in GeV, e.g. 10.0>" (sent only once)

• "L1CAL_to_L1FW Tau_All_Term  <P=0:3> Use_Ref_Set  <T=1:6> Use_Tau_Ratio_Set <R=1:6> Count_Threshold <N=1:2>" (as needed)
• "L1CAL_to_L1FW Tau_Central_Term <P=0:3> Use_Ref_Set  <T=1:6> Use_Tau_Ratio_Set <R=1:6> Count_Threshold <N=1:2>" (as needed)

• "L1CAL_Global_Sums Min_Tower_Et TT_Eta(-20:20) TT_Phi(1:32) Energy_Threshold <E in GeV, e.g. 1.0> Global_Sums_Use_ICR <0/1>" (sent only once)

• "L1CAL_to_L1FW Missing_Et_Term <P=0:3>  Energy_Threshold <E in GeV, e.g. 10.0>" (as needed)

• "L1CAL_Global_Sums Min_Tower_Et TT_Eta(-20:20) TT_Phi(1:32) Energy_Threshold <E in GeV, e.g. 1.0> Global_Sums_Use_ICR <0/1>" (sent only once)

• "L1CAL_to_L1FW Total_Et_Term   <P=0:3>  Energy_Threshold <E in GeV, e.g. 10.0>" (as needed)

• "L1CAL_Ref_Set Jet_Use_ICR <0/1>" (sent only once)
• "L1CAL_Ref_Set Jet_Et_Ref_Set <T=1:6> TT_Eta(-16:16) TT_Phi(1:32) Energy_Threshold <Et in GeV, e.g. 10.0>" (sent once per reference set)

• "L1CAL_to_L1FW Acoplanar_Jet_Term <P=0:1>  Use_Ref_Set1 <T_1=1:6> Use_Ref_Set2 <T_2=1:6> Min_Delta_phi <K=0:X>"  (as needed)

• "L1CAL_Ref_Set Jet_Et_Ref_Set T=0 TT_Eta(-16:16) TT_Phi(1:32) Energy_Threshold <Et in GeV, e.g. 10.0>" (sent only once)
• "L1CAL_Ref_Set Jet_Use_ICR <0/1>" (sent only once)
• "L1CAL_Ref_Set Jet_Et_Ref_Set <T=1:6> TT_Eta(-16:16) TT_Phi(1:32) Energy_Threshold <Et in GeV, e.g. 10.0>" (sent once per reference set)

•   "L1CAL_to_L1FW NonCollinear_LowEt_Jet_Term <P=0:1>  Use_Ref_Set1 <T_1=1:6> Use_Ref_Set2 <T_2=1:6>  Use_Ref_Set_Veto <T_v=0:6> Min_Delta_phi <K=0:X>" (as needed)

• "L1CAL_Ref_Set Jet_Et_Ref_Set T=0 TT_Eta(-16:16) TT_Phi(1:32) Energy_Threshold <Et in GeV, e.g. 10.0>" (sent only once)
• "L1CAL_Ref_Set Jet_Use_ICR <0/1>" (sent only once)
• "L1CAL_Ref_Set Jet_Et_Ref_Set <T=1:6> TT_Eta(-16:16) TT_Phi(1:32) Energy_Threshold <Et in GeV, e.g. 10.0>" (sent once per reference set)

•   "L1CAL_to_L1FW NonCollinear_Mono_Jet_Term <P=0:1>  Use_Ref_Set1 <T_1=1:6> Use_Ref_Set2 <T_2=1:6>  Use_Ref_Set_Veto <T_v=0:6> Min_Delta_phi <K=0:X>" (as needed)

• "L1CAL_Ref_Set EM_Et_Ref_Set  <T=1:6> TT_Eta(-16:16) TT_Phi(1:32) Energy_Threshold <Et in GeV, e.g. 10.0>" (sent once per reference set)

• "L1CAL_to_L1FW Back_To_Back_EM_Term <P=0:1>   Use_Ref_Set <T=1:6> Min_Delta_phi <K=0:X>"  (as needed)

• "L1CAL_Ref_Set Jet_Et_Ref_Set T=0 TT_Eta(-16:16) TT_Phi(1:32) Energy_Threshold <Et in GeV, e.g. 10.0>" (sent only once)
• "L1CAL_Ref_Set Jet_Et_Ref_Set  <T=1:6> TT_Eta(-16:16) TT_Phi(1:32) Energy_Threshold <Et in GeV, e.g. 10.0>" (sent once per reference set)

• "L1CAL_to_L1FW Jet_Free_Term <P=0:1>   Use_Ref_Set <T=1:6> Use_Ref_Set_Veto <T_v=0:6> Min_Delta_phi <K=0:X>"(as needed)