Marvin Test Solutions GX5280, Руководство пользователя

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Appendix A - Connectors and Cables 35
J3 Timing Signals Connector
This topic describes the GX5280 Timing connector J3 timing and external event signals (used only on a Master).
This interface uses a 68-pin VHD connector. The following table lists the Timing signals:
Pin Name Function Pin Name Function
1 EXT0 Input External event 0 18 ORun Output Run Indication
2 EXT1 Input External event 1 19 GND
3 EXT2 Input External event 2 20 BClk Independent output programmable clock output
4 EXT3 Input External event 3 21 GND
5 EXT4 Input External event 4 22 OClk User Output Clock
6 EXT5 Input External event 5 23 GND
7 EXT6 Input External event 6 24 OStb Strobe Output
8 EXT7 Input External event 7 25 GND
9 EXT8 Input External event 8 26 XTrig External Trigger Input (Overrides Run Command)
10 EXT9 Input External event 9 27 XPause External Pause Input (Overrides Pause Command)
11 EXT10 Input External event 10 28 XClkEn External Clock Enable Input
12 EXT11 Input External event 11 29 XStbEn External Strobe Enable Input
13 EXT12 Input External event 12 30 EXCLKO
Output clock, distributes EXCLK to slaves (PCB
revision D or later, otherwise GND).
14 EXT13 Input External event 13 31 XClk External Clock Input
15 EXT14 Input External event 14 32 XStb External Strobe Input
16 EXT15 Input External event 15 33 VTH
Termination voltage output for data and control
signals
17 OArm Output Arm Indication 34 GND
35 GND 67 VTH
Termination voltage output for data and control
signals
66 GND 68 GND
Table A-3: 68-pin Connector J3 Timing UUT.
Unspecified pins are GND.