Levan Babukhadia

Levan Babukhadia

Collaboration Meeting, July 26, 2001, Fermilab

Collaboration Meeting, July 26, 2001, Fermilab

http://www-d0.fnal.gov/~blevan/upgrade.html

CTTT StatusCTTT Status

SUNY at Stony BrookSUNY at Stony Brook

Collaboration Meeting, July 26, 2001, Fermilab Levan Babukhadia

CTTT

Sums up various tracks/clusters from octant (CTOC) boards, etc., to form ALL L1 CFT/CPSax neoterms (up to 96) and transmits them to the TM. Also sends all of its L1 inputs to the L3 upon L1 Accept.

Hardware

1 DWDB with 2 XCV600 FPGAs (to make it uniform throughout the system, otherwise just one XCV600 should suffice)

No dedicated production board here yet... concentrating on CTOC boards, but any of the DFE boards can be substituted for CTTT (and FPTT) ...

Collaboration Meeting, July 26, 2001, Fermilab Levan Babukhadia

Firmware

Receives and synchronizes data on arbitrary number of input links by instantiating L1FE firmware (DØ Note 3881) thereby implement-ting L1 pipeline for inputs and the L3 Sender

Waits to receive and correct all data and then maps into (iso)tracks, clusters, etc.

Forms TMO, THT1, and THT2 (old names) Occupancy Level trigger terms each correspon-ding to thresholds with easily adjustable and tunable values (defaults are 5, 10, and 15%)

Right now, the CTTT Trigger Term formation VHDL is implemented in the surrogate CTOC board due to the limitations of the hardware setup of the Occupancy/HIT trigger

Has been integrated with the general purpose TestBench (DØ Note 3871) and tested at behavioral and timing levels

A month or so ago, CTTT firmware was chained up with CTOC firmware in a simulation and both pieces of firmware worked fine

Collaboration Meeting, July 26, 2001, Fermilab Levan Babukhadia

Outlook

Expect certain track Trigger Terms (such as TTK, TTA, TEL, TPQ, TNQ) in about a month

Isolated track terms (such as TIS, TDS, TIL, TIQ) and certain other terms (such as TDL,…) to come next

In any case, will definitely keep up-to-speed with everything else …

Have updated neoterm list taking into account single preshower threshold, freeing up 10 trigger bits. This will be implemented soon in the firmware and the simulator