| Type / Bit Nr | 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| BX -1 | BX count | to be defined | BX counter | ||||||||||||||||||||||||||||||
| inp(16x) | 0 | type | SE | B2 | B1 | B0 | VCH | CH | H/F | eta(6) | qual(3) | pt(5) | phi(8) | ||||||||||||||||||||
| outp(4x) | 1 | fwd | iRPC | iDT/CSC | SY/SGN | MIP | ISO | eta(6) | qual(3) | pt(5) | phi(8) | ||||||||||||||||||||||
| GMT Ranks (optional) | sort rank 3 | sort rank 2 | sort rank 1 | sort rank 0 | |||||||||||||||||||||||||||||
|
BX 0 |
BX count | to be defined | BX counter | ||||||||||||||||||||||||||||||
| data... | |||||||||||||||||||||||||||||||||
|
BX 1 |
BX count | to be defined | BX counter | ||||||||||||||||||||||||||||||
| data... | |||||||||||||||||||||||||||||||||
16 input + 4 output muons at 32 bit: 32 bits x (20 muons+1 bx count) x 3 bx = 2016 bits
| type | type of input muon: DT:00, brlRPC:01, CSC:10, fwdRPC:11 (*) |
| SE | sync error flag from regional trigger |
| B2 | bunch counter bit 2 |
| B1 | bunch counter bit 1 |
| B0 | bunch counter bit 0 |
| VCH | valid charge (1 if charge is valid) |
| CH | charge: positiv:0, negative: 1 |
| H/F | halo bit for CSC ( 1 if halo), eta_is_fine bit for DT (1 if fine), not used for RPC |
| eta | eta coordinate (specific scale) |
| qual | quality code |
| pt | eta coordinate (common scale) (empty muon has pt=0) |
| phi | phi coordinate (0..143dec) |
(*) in order to facilitate zero suppression
| fwd | Forward flag: 1 if GMT muon if from fwd part, 0 if it is from brl part |
| iRPC | index of brlRPC (if barrel) or of fwdRPC (if fwd) input muon (needed by HLT) |
| iDT/CSC | index of DT (if barrel) or of CSC (if fwd) input muon (needed by HLT) |
| SY/SGN | Sync / sign of charge code: pos: 00, neg: 01, unkown: 10, sync : 11 |
| MIP | Minimum Ionizing Particle bit (1 if muon is MIP) |
| ISO | Isolation bit (1 if muon is isolated) |
| eta | eta coordinate (preudo sign in MSB) |
| qual | quality code |
| pt | eta coordinate (common scale) (empty muon has pt=0) |
| phi | phi coordinate (0..143dec) |
A possible form of zero suppression could be to skip empty muons