Layer 0

1
Each DSM has two output ports which pass 16 bits
each
Layer 0
Layer 1
Layer 2
LAST DSM
12 bits from FEE on each of 10 DSM inputs. 6
bits of High Tower (HT) energy and 6 bits of
Trigger Patch (TP) Energy. HT energy in FEE is 10
bits and the six passed to DSM layer 0 can be
either 6 highest or lowest bits.
1x6
1x2
1x0.4
W. BEMC
EEMC
2 more 1x0.4 DSMs
1x0.4
2 bits HT energy thresholds 2 bits-HT
multiplicity 8 bits Sum over all inputs to get
total energy for 1x2 patch and take highest 8 of
13 bits 2 bits sum TPs to get 1x1 jet patch and
store as 3 thresholds 2 bits sum TPs to get 1x1
jet patch and store as 3 thresholds
2 bits Max of HT from 6 BEMC inputs 2 bits HT
Multiplicity 2 bits Max of JP from 6 BEMC
inputs 2 bits Sum 6 1x2 BEMC total energy
patches and put into three threshold format. 8
bits - EEMC
1x0.2
1x0.2
2 bits HT energy thresholds 2 bits HT
multplicity 10 bits sum of 10 input TP energies
BEMC
2
2 bit Max of BEMC and EEMC JP in 2 thresholds
bit11 if EEMC BEMC adjacent JP bit is true 2
bit Max of BEMC and EEMC HT in 2 thresh .
Bit11 if HT gt2 mult for low thresh. 1 bit
Etot gt threshold for BEMC
Each DSM has two output ports which pass 16 bits
each
LAST DSM
Layer 0
Layer 1
Layer 2
12 bits from FEE on each of 10 DSM inputs. 6
bits of High Tower (HT) energy and 6 bits of
Trigger Patch (TP) Energy. Top bit ORd with
higher bits.
1x3
1x6
1x0.6
W. BEMC
E. BEMC
1x0.6 1x0.6 1x0.3 DSM
1x0.3
1x0.3
2 bits HT Max from all EEMC 2 bits TP
energy for above HT 2 bits EEMC JP 00 0 gt 1st
thr. 01 1 gt 1st thr. 10 1 gt 2nd thr.
11 1 gt 3rd thr. Or 2 adjgt2nd 1 bit adjacent
BEMC and EEMC JPs gt 2nd threshold 8 bits see
BEMC
2 bits max HT energy 2 bits TP energy which
contains above HT 2 bits HT multiplicity 7
bits Etot sum for 1x3 patch. Take bits 2-8 out
of 13 total (2-128 GeV) 3 bits Jet Patch (JP)
sum TPs to get 3 1x1 jet patches (A,B,C).
2 bits HT energy 2 bits TP energy which
contains above HT 2 bits HT multiplicity 10
bits sum of 10 input TP energies
000 (A B C) lt 1st thr 111 (AB) or (BC)
gt 3rd 101 (A or B or C) gt 1st 001
A gt 2nd thr 010 B gt 2nd thr
100 C gt 2nd thr
EEMC
(EEMC HT multiplicity is ord with BEMC at this
level )