SP – DDU DATA FORMATS Preliminary by Lev Uvarov Trigger Meeting at UCLA December 2001

PNPI UCLA Meeting - December 14, Lev Uvarov2 SP Data Frames SP sends DAQ data in Frames Frame control over transceiver control / status bits Option: via MSB data bit Frames are structured Start-of-frame Frame content End-of frame Two basic frame types: Event frames Fast monitoring frames

PNPI UCLA Meeting - December 14, Lev Uvarov3 Start-of-Frame WordTX_ENTX_ERTXDRX_ENRX_ERRXDComment SOF1High 0xXXXXHigh 0xXXXXDelimiter SOF2HighLow0xDDDDHighLow0xDDDD SP ID + Frame Type SpareSP IDZSSpareIBOBHD

PNPI UCLA Meeting - December 14, Lev Uvarov4 Frame Content FieldComment Header Mandatory, if any data block is present Output BlockOptional Input BlockOptional (up to 7) Input BlockOptional Input BlockOptional Input BlockOptional Input BlockOptional Input BlockOptional Input BlockOptional

PNPI UCLA Meeting - December 14, Lev Uvarov5 Header WordComment HD1SP Code Version HD2Local Bunch Counter – 12 bits HD3Local Event Counter – 12 LSB HD4Local Event Counter – 12 MSB HD5SR LUT set # HD6SP LUT Set # HD7SP Configuration HD8SP Configuration (continued)

PNPI UCLA Meeting - December 14, Lev Uvarov6 Output Block WordComment OB1ME Out-of-Synch stubs OB2MB Out-of-Synch stubs OB3 First MS Track OB4 OB5 Second MS Track OB6 OB7 Third MS Track OB ME4C4B4A3C3B3A2C2B2A1F1E1D1C1B1A MB1D1C1B1A

PNPI UCLA Meeting - December 14, Lev Uvarov7 Input Block WordComment IB1ME Valid Stubs pattern IB2 ME_1A Stub IB3 IB4 ME_1B Stub IB5 IB6 ME_1C Stub IB7 IB8 ME_1D Stub IB9 IB10 ME_1E Stub IB11 IB12 ME_1F Stub IB13 IB14 ME_2A Stub IB15 IB16 ME_2B Stub IB17 IB18 ME_2C Stub IB19 IB20 ME_3A Stub IB21 IB22 ME_3B Stub IB23 IB24 ME_3C Stub IB25 IB26 ME_4A Stub IB27 IB28 ME_4B Stub IB29 IB30 ME_4C Stub IB31 IB32MB Valid Stubs pattern IB33 MB_1A Stub IB34 IB35 MB_1B Stub IB36 IB37 MB_1C Stub IB38 IB39 MB_1D Stub IB ME Pattern4C4B4A3C3B3A2C2B2A1F1E1D1C1B1A MB Pattern1D1C1B1A

PNPI UCLA Meeting - December 14, Lev Uvarov8 End-of-Frame WordTX_ENTX_ERTXDRX_ENRX_ERRXDComment EOF1HighLowFMHighLowFM Fast Monitoring and Errors EOF2High 0xXXXXHigh 0xXXXXDelimiter EOF Value Spare# of Erroneous StubsSpareERRSERWOVBSYRDY