pflib::packing::HcalECONTRocSTCMapping Class Reference

map ROC channels into ECON-T/STC More...

#include <HcalECONTRocSTCMapping.h>

Collaboration diagram for pflib::packing::HcalECONTRocSTCMapping:

Public Member Functions
	HcalECONTRocSTCMapping (const std::vector< std::pair< int, std::vector< int > > > &roc_trg_to_econt_erx)
std::pair< int, int >	toECONTSTC (int i_roc, int ch) const
	get the ECON-T/STC that the input ROC/channel would be summed into

Static Public Member Functions
static int	toROCTrigChannel (int ch)
	which trigger channel the input ROC channel goes to

Private Attributes
std::vector< std::pair< int, std::vector< int > > >	roc_trg_to_econt_erx_
	hardware mapping copied from the Target

Detailed Description

map ROC channels into ECON-T/STC

The inverse mapping is not provided since many ROC channels are summed into a single STC.

This is for a single Hcal Backplane which hosts 2 ECON-Ts. The 2 ECON-Ts on the backplane are indexed 0 and 1 in the decoded packing::HcalECONTCaptureFrame but are indexed 1 and 2 in the Target::econ accessor.

Member Function Documentation

toECONTSTC()

std::pair< int, int > pflib::packing::HcalECONTRocSTCMapping::toECONTSTC	(	int	i_roc,
		int	ch ) const

get the ECON-T/STC that the input ROC/channel would be summed into

Parameters

[in]	i_roc	ROC index
[in]	ch	channel within that ROC [0,72)

Returns

[i_econt, i_stc] where i_econt is the index of the ECON-T in HcalECONTCaptureFrame and i_stc is the index of the STC in that ECON-T

Each ROC trig channel gets mapped directly onto an ECON-T eRx and each ECON-T eRx, since the ECON-T is assumed to be summing 4 TCs together into an STC and the trig channel contains 4 TCs, is identical to the STC index.

The ECON-T IDs kept in the mapping are for the Target::econ accessor, the HcalECONTCaptureFrame does not have the ECON-D so the indices are are lowered by one.

toROCTrigChannel()

int pflib::packing::HcalECONTRocSTCMapping::toROCTrigChannel ( int ch )

static

which trigger channel the input ROC channel goes to

The ROC channels are summed into Trigger Cells (TCs) in groups of 4 (for the Hcal) and channels whose index is equal to 8 modulo 9 are ignored in the sum-by-4 configuration. The TCs are then grouped together in groups of 4 to be sent along the trigger channels to the ECON-T.

Parameters

[in]

ch

ROC channel [0,72)

Returns

the trigger channel ch would end up in, -1 if it will be ignored

---

The documentation for this class was generated from the following files:

• include/pflib/packing/HcalECONTRocSTCMapping.h
• src/pflib/packing/HcalECONTRocSTCMapping.cxx