Gebelein, J.

Gottschalk, D.

Kebschull, U.

May, G.

GSI Repository

SysCore3 – A universal Read Out Controller and Data Processing Board∗J. Gebelein1, D. Gottschalk2, G. May3, and U. Kebschull11Infrastructure and Computer Systems for Data Processing (IRI), Frankfurt University, Frankfurt/Main, Germany;2Physikalisches Institut (PI), Heidelberg University, Heidelberg, Germany; 3GSI, Darmstadt, GermanyThe universal SysCore architecture was initially an-nounced in 2007 to provide an optimum balance be-tween fixed requirements and flexibility. The first instanceof boards following this principle, acted as developmentplatform for FEE (Front End Electronic), especially thenXYTER with ADC (Analog Digital Converter) and ROC(Read Out Controller). The second slightly modified in-stance of this board came into operation in several sub-detector systems of the CBM experiment, especially as ToF(Time of Flight) ROC where it is used for years now. To ex-tend the usability spectrum, whilst keeping the re-usabilityapproach, a completely new and improved version 3 of theSysCore architecture board has been developed [1]. It al-lows the CBM collaboration not only to prototype FEE orto develop ROCs, but also to evaluate the DPB (Data Pro-cessing Board) capabilities for an optical readout in theCBM service building. In this specific context, the TRD(Transition Radiation Detector) feature extraction is cur-rently an active field of research.Considering all requirements, such as FMC HPC con-nectors for high performance connectivity, USB for pro-gramming and data transfer, DDR3 for fast memory access,Jitter Cleaner for clock distribution across several boards,optical SFP connectors for CBMnet integration [2] and notto forget an inexpensive central processing FPGA whichcan be operated in radiation environments, the PCB gota size of 230x230mm. It is made of 16 different layerswith a track width/distance of 0,15-0,09mm (micro finelines). Length compensation for the most critical compo-nents such as DDR3, FMC and SFP has been performed.Functional blocks such as power supply, scrubbing con-trolling or high performance data transfer have been locallycombined to provide optimal results. The final board layoutcan be seen in figure 1.Programming of the major components on the board canbe performed in different ways: The Spartan-6 FPGA it-self can be programmed either via USB (Cypress FX2) orJTAG programmer or by the onboard Microsemi ProASIC3scrubbing controller from a nearby flash memory. ThePROASIC3 can be programmed via the Spartan-6 FPGA ora JTAG programmer. This combination allows remote con-figuration of both FPGAs on the board. Furthermore, theProASIC3 acts as scrubbing controller for the ToF ROCwhen it is operated in radiation susceptible environments[3, 4, 5]. This fault tolerance approach has always been amajor component of the SysCore architecture and can onlyby achieved when all components go together. Therefore,∗Work supported by BMBF (06HD9123I, 06FY7090/05P12RFFCM)the major processing FPGA has been selected to supportthe background scrubbing feature, the flash memory hold-ing its configuration is a Micron SLC NAND memory withdurable charge pumps [6] and the power supply utilizesLinear Technology POL (Point of Load) converters.Figure 1: PCB top view of the SysCore3.References[1] N. Abel, C. Garcia, J. Gebelein, S. Manz, U. Kebschull,“SysCore3 – a new board for the Universal ROC”, CBMProgress Report 2011, Darmstadt, Germany, ISBN 978-3-9811298-9-2[2] F. Lemke, “Unified Synchronized Data Acquisition Net-works”, Dissertation, 2012, Mannheim, Germany[3] N. Abel, H. Engel, J. Gebelein, D. Gottschalk, S. Manz, A.Oancea, U. Kebschull, “Radiation tolerance of the UniversalRead Out Controller”, CBM Progress Report 2010, Darm-stadt, Germany, ISBN 978-3-9811298-8-5[4] J. Gebelein, H. Engel, U. Kebschull, “FPGA fault tolerancein radiation susceptible environments”, Proceedings on Radi-ation Effects on Components and Systems (RADECS) 2010,Austria[5] J. Gebelein, U. Kebschull, “Investigation of SRAM FPGAbased Hamming FSM encoding in beam test”, Proceed-ings on Radiation Effects on Components and Systems(RADECS) 2012, France[6] F. Irom, D. N. Nguyen, “Radiation Tests of Highly ScaledHigh Density Commercial Nonvolatile NAND Flash Memo-ries”, JPL TRS, 2011, USAPHN-NQM-EXP-44 GSI SCIENTIFIC REPORT 201274

SysCore3 - A universal Read Out Controller and Data Processing Board

http://repository.gsi.de/record/51978/files/PHN-NQM-EXP-44.pdf

SysCore3 - A universal Read Out Controller and Data Processing Board

Abstract

Similar works

Full text

Available Versions

GSI Repository