Chapter 6 RTSI TriggerDAQ-STC Technical Reference Manual6-2 ©National Instruments Corporation6.4 Programming InformationThis section presents programming information that is specific to the RTSI trigger. Forgeneral information about programming the DAQ-STC, see section 2.6, ProgrammingInformation.6.4.1 Programming the RTSI InterfaceThis section contains detailed programming information for users who need to do bit-levelprogramming of the RTSI interface for specialized applications.Table 6-1. Pin InterfacePin Name Type DescriptionRTSI_TRIGGER<0..6> B9TU RTSI Trigger—As an input, these pins are the seven RTSItrigger lines. As an output, these pins can be driven from12 signal sources ADR_START1, ADR_START2,SCLKG, DACUPDN, DA_START1, G_SRC 0, G_GATE0, RGOUT0, and RTSI_BRD<0..3>. Source/Destination:These pins are appropriate for use as bidirectionalRTSI_TRIGGER bus signals. Related bitfields:RTSI_Trig_i_Pin_Dir, RTSI_Trig_i_Output_Select.RTSI_BRD<0..3> B9TU RTSI Board Interface—Configured as an input, eachbidirectional RTSI_BRD pin can drive any of the sevenRTSI_TRIGGER pins. RTSI_BRD<0..1> can also bedriven by AI STOP and RTSI_BRD<2..3> can also bedriven by the AI START and SCAN_IN_PROG signals.These pins provide a mechanism for additional board-levelsignals to be sent on or received from the RTSI bus.Related bitfields: RTSI_Board_i_Pin_Dir,RTSI_Board_i_Output_Select.RTSI_OSC B9TU RTSI Oscillator Source—RTSI_OSC is a bidirectional pin.Programmed as an input, it is the alternate timing sourcefor the DAQ-STC. Programmed as an output, this pincarries the OSC signal. The pin is used formultiple-DAQ-STC synchronization across the RTSI bus.Source/Destination: RTSI bus. Related bitfields:RTSI_Clock_Mode.
