Behavioral Architecture Reference

Core of the electromagnetic algorithm. More...

Components
Mult

Signals
TOBEnergy	DataWord
C_IN_TOBEnergy	DataWord
C_IN_FracTOBEnergy	DataWord
TOBEnergyOverflow	std_logic
C_IN_TOBEnergyOverflow	std_logic
C_IN_FracTOBEnergyOverflow	std_logic
C_IN_EnergyThr	DataWord
C_IN_BDTMaxEnergyThr	DataWord
C_IN_BDTMinEnergyThr	DataWord
C_IN_BDTTOBEnergy	DataWord
C_IN_BDTTOBEnergyOverflow	std_logic
SF_IsMax	std_logic
C_IN_IsMax	std_logic
C_OUT_IsMax	std_logic
Final_IsMax	std_logic := ' 0 '
Final_TOBEnergy	DataWord := ( others = > ' 0 ' )
Final_TOBEnergyOverflow	std_logic := ' 0 '
C_OUT_TOBEnergy	DataWord
C_OUT_TOBEnergyOverflow	std_logic
BDTScore	std_logic_vector ( BDT_SCORE_WIDTH- 1 downto 0 )
C_IN_BDTScore	std_logic_vector ( BDT_SCORE_WIDTH- 1 downto 0 )
BDTThresholds	AlgoParameters ( 2 downto 0 )
C_IN_BDTThr	AlgoParameters ( 2 downto 0 )
Final_BDTCondition	std_logic_vector ( 1 downto 0 ) := ( others = > ' 0 ' )
C_OUT_BDTCondition	std_logic_vector ( 1 downto 0 )
Final_BDTScore	std_logic_vector ( BDT_SCORE_WIDTH- 1 downto 0 ) := ( others = > ' 0 ' )
C_OUT_BDTScore	std_logic_vector ( BDT_SCORE_WIDTH- 1 downto 0 )
FracEnvSumOverflow	std_logic
C_IN_FracEnvSumOverflow	std_logic
FracCoreSumOverflow	std_logic
C_IN_FracCoreSumOverflow	std_logic
FracCoreSum	DataWord
C_IN_FracCoreSum	DataWord
FracEnvMultOverflows	std_logic_vector ( 2 downto 0 )
C_IN_FracEnvMultOverflows	std_logic_vector ( 2 downto 0 )
FracEnvMult	DataWords ( 2 downto 0 )
C_IN_FracEnvMult	DataWords ( 2 downto 0 )
C_IN_Frac_ET_Thr	DataWord
Final_FracCondition	std_logic_vector ( 1 downto 0 ) := ( others = > ' 0 ' )
C_OUT_FracCondition	std_logic_vector ( 1 downto 0 )
ParFrac	AlgoParameters ( 2 downto 0 )
M_IN_ParFrac	AlgoParameters ( 2 downto 0 )
output_data	DataWords ( BDT_N_VARIABLES+ 10 downto 0 )
output_of_data	std_logic_vector ( BDT_N_VARIABLES+ 10 downto 0 )
BDTScore_vld	std_logic
SF_sum	DataWords ( 8 downto 0 )
SF_of	std_logic_vector ( 8 downto 0 )
BDTVars_val	DataWords ( BDT_N_VARIABLES- 1 downto 0 )
FracEnvSum	DataWord
M_IN_FracEnvSum	DataWord
DelayTree_out	DataWords ( 33 downto 0 )
DelayTree_in	DataWords ( 28 downto 0 )

Instantiations
adder_tree	AdderTree <Entity AdderTree>
tau_seed_finder	TauSeedFinder <Entity TauSeedFinder>
bdt	BDTModel <Entity BDTModel>
delay_tree	DelayTree <Entity DelayTree>
frac_multiplier	MultiMultiplier <Entity MultiMultiplier>
conditions_energy_and_seed	TauConditionsEnergyAndSeed <Entity TauConditionsEnergyAndSeed>
conditions_bdt	TauConditionsBDT <Entity TauConditionsBDT>
conditions_frac	TauConditionsFrac <Entity TauConditionsFrac>

Detailed Description

Core of the electromagnetic algorithm.

The total latency of this block is 10 clock cycles, this is a table representing the timing:

clock cycle	0	1	2	3	4	5	6	7	8	9	10
RAM address	0	1	2	3	4	0	1	2	3	4	0
seed finder	X	X
In mux	X	X
Adders env			X	X	X	X
Addders core			X	X	X	X	X	X	X
Multipliers							X	X	X
Seed delay			X	X	X	X	X	X	X	X	X
TOB energy										X	X
Threshold delay						X	X	X
Conditions										X	X
Dead Mat. Corr.			X
DMC delay	X	X

At clock cycle 0 the data is provided to the algorithm.

At clock cycle 1, the seed is ready and so is the data coming out of the input multiplexer, which is provided to the adders.

At clock cycle 5, the envoronment sums are ready and fed into the multipliers.

At clock cycle 8, all the sums and the multiplications are done and the valued are fed into the conditions

At clock cycle 8 also the energy threshold is applied.

At clock cycle 10 the TOBs are formed with the conditions bits and the Energy

The parameters used to evaluate the conditions are read from the RAM at clock cycle 0 or 5 (the RAM address goes form 0 to 4).

A delay of 2 clock cycles is used to pipeline the correct value for Dead Materal Correction (DMC) parameters that are read at clock cycle 2, i.e. when data is provided to the adders.

A delay of 3 clock cycles is used to delay the energy thresholds which are read at clock cycle 8, i.e. when the conditions are evaluated.

Author

Francesco Gonnella

Definition at line 76 of file AlgoCore_tau_bdt.vhd.

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

• Algorithm/hdl/TauBDT/AlgoCore_tau_bdt.vhd