AlgoCore_tau Entity Reference

Core of the electromagnetic algorithm. More...

Inheritance diagram for AlgoCore_tau:

Entities
Behavioral	architecture
	Core of the electromagnetic algorithm. More...

Libraries
IEEE
infrastructure_lib

Use Clauses
STD_LOGIC_1164
NUMERIC_STD
DataTypes	Package <DataTypes>

Ports
CLK200	in	std_logic
IN_ParJet	in	AlgoParameters ( 2 downto 0 )
IN_ParFrac	in	AlgoParameters ( 2 downto 0 )
IN_Energy_threshold	in	DataWord
IN_cond_threshold	in	DataWord
IN_Data	in	TriggerTowers ( 8 downto 0 )
OUT_TOB	out	TriggerObject_tau

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 16 of file AlgoCore_tau.vhd.

---

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

• Algorithm/hdl/AlgoCore_tau.vhd