/data/refman/pasoursint/CMSSW_5_3_0/src/EventFilter/EcalRawToDigi/interface/DCCEventBlock.h File Reference

#include <DataFormats/EcalRawData/interface/EcalRawDataCollections.h>
#include <DataFormats/EcalDigi/interface/EcalDigiCollections.h>
#include "DCCRawDataDefinitions.h"

Go to the source code of this file.

Classes
class	DCCEventBlock
Enumerations
enum	BlockType { FE_MEM = 1, TCC_SRP = 2 }
Functions
bool	isSynced (const unsigned int dccBx, const unsigned int bx, const unsigned int dccL1, const unsigned int l1, const BlockType type, const unsigned int fov)

---

Enumeration Type Documentation

enum BlockType

Enumerator:

FE_MEM
TCC_SRP

Definition at line 129 of file DCCEventBlock.h.

{FE_MEM = 1, TCC_SRP = 2};

---

Function Documentation

bool isSynced	(	const unsigned int	dccBx,
		const unsigned int	bx,
		const unsigned int	dccL1,
		const unsigned int	l1,
		const BlockType	type,
		const unsigned int	fov
	)

Definition at line 168 of file DCCEventBlock.cc.

References FE_MEM, and TCC_SRP.

Referenced by DCCMemBlock::unpack(), DCCFEBlock::unpack(), DCCTCCBlock::unpack(), and DCCSRPBlock::unpack().

{
  // avoid checking for MC until EcalDigiToRaw bugfixed
  // and to guarantee backward compatibility on RAW data
  if ( fov < 1 ) return true;
  // check the BX sync according the following rule:
  //
  //   FE Block     MEM Block     TCC Block  SRP Block  DCC
  // ------------------------------------------------------------------
  //   fe_bx     == mem_bx == 0   tcc_bx ==  srp_bx ==  DCC_bx == 3564
  //   fe_bx     == mem_bx     == tcc_bx ==  srp_bx ==  DCC_bx != 3564
  
  const bool bxSynced =
    ((type ==  FE_MEM) && (bx ==     0) && (dccBx == 3564)) ||
    ((type ==  FE_MEM) && (bx == dccBx) && (dccBx != 3564)) ||
    ((type == TCC_SRP) && (bx == dccBx));
  
  // check the L1A sync:
  //
  // L1A counter relation is valid modulo 0xFFF:
  // fe_l1  == mem_l1 == (DCC_l1-1) & 0xFFF
  // tcc_l1 == srp_l1 ==  DCC_l1    & 0xFFF
  
  const bool l1Synced =
    ((type ==  FE_MEM) && (l1 == ((dccL1 - 1) & 0xFFF))) ||
    ((type == TCC_SRP) && (l1 == ( dccL1      & 0xFFF)));
  
  return (bxSynced && l1Synced);
}