= PhLOM (TRIG) Manual = {{{ #!Frame align=float:left,thick=0px,width=220px {{attachment:phlom-front.png|PhLOM Front Panel Connectors Description}} }}} == TTC Bus Output == [[TTC]] bus output provides clock, spill, trigger and reset LVDS signals. It is compatible with VMEDAQ specification. == LEDs == . 1 (red) - lights on spill when data readout is enabled . 2 (yellow) - blinks on trigger == Inputs == . NIM1 - Trigger input, NIM standard, 5 ns minimum . SPILL - external sync signal, positive logic. Readout enabled with logic one on this input. . P2 LVDS1..LVDS32 - Trigger inputs, LVDS or ECL, 5 ns minimum == Outputs == . P4 internal connector - aux. TTC output, diff. ECL . P3 ECL1..ECL32 - Aux outputs, diff. ECL. LVDS1 is fan-out to ECL1..ECL15 == Switches == . bsw1, bsw0 - serial minor. Serial = 4+minor . bsw15:bsw11 - GA4:GA0 GA 3, Serial 4: . bsw0..bsw7: 1 1 0 0 0 0 0 0 . bsw8..bsw15: 0 1 1 0 0 1 1 1 {{{ #!Frame align=clear }}} == VME Interrupt Lines == . IRQ1 - data read XOFF input . IRQ2 - spill output . IRQ5 - data read request output == VME Registers == * Detailed description of [[VmeRegistersTtcm|PhLOM/TTCM VME Registers]] == VME Data Format == * [[DataFormatTTCM|TTCM Raw Data Format]] == Trigger Cable == For use with [[TQDC-16]], special ribbon twisted pair cable is supplied with 34-pin connector on one side and four 10-pin connectors on other side. One cable connects four TQDC-16 modules with TTCM. == Input Aggregation == Trigger inputs are combined after shaping and delay by OR scheme. 40 inputs are reduced to 4 trigger lines. Logic OR is performed this way (trigger line = input OR input ...): . ST = LVDS1 . TQDC1 = LVDS6 | LVDS10 | LVDS14 . TQDC2 = LVDS18 | LVDS22 | LVDS26 | LVDS30 . NIM = NIM1 <> == P4 TTC Connector == Internal P12 connector is duplicating the front-panel TTC output. Even signal pin positive. Signal level: differential ECL ||pin pair||signal||description|| ||1-10||reserved||don't use|| ||11, 12||trigger||trigger signal|| ||13, 14||spill||Trigger and data readout enable|| ||19, 20||ground||signal ground|| == TTCM Block Diagram == {{attachment:ttcm-diagram-small.png|TTCM Block Diagram}}