Analog Output Series User Manual© National Instruments | ixCounter 0 Internal Output Signal.............................................................................. 5-4CTR 0 OUT Pin................................................................................................ 5-5Counter 0 Up/Down Signal ...................................................................................... 5-5Counter 1 Source Signal ........................................................................................... 5-5Counter 1 Gate Signal............................................................................................... 5-6Counter 1 Internal Output Signal.............................................................................. 5-7Counter 1 Up/Down Signal ...................................................................................... 5-7Frequency Output Signal .......................................................................................... 5-7Master Timebase Signal ........................................................................................... 5-8Getting Started with Counter Applications in Software................................................... 5-8Chapter 6Programmable Function Interfaces (PFI)Inputs ................................................................................................................................ 6-1Outputs.............................................................................................................................. 6-1Chapter 7Digital RoutingTiming Signal Routing ..................................................................................................... 7-1Connecting Timing Signals .............................................................................................. 7-3Routing Signals in Software ............................................................................................. 7-4Chapter 8Real-Time System Integration Bus (RTSI)RTSI Triggers ................................................................................................................... 8-1Device and RTSI Clocks .................................................................................................. 8-3Synchronizing Multiple Devices ...................................................................................... 8-3Chapter 9Bus InterfaceMITE and DAQ-PnP ........................................................................................................ 9-1Using PXI with CompactPCI ........................................................................................... 9-1Data Transfer Methods ..................................................................................................... 9-2Direct Memory Access (DMA) ................................................................................ 9-2Interrupt Request (IRQ)............................................................................................ 9-2Programmed I/O ....................................................................................................... 9-2Changing Data Transfer Methods between DMAand IRQ ................................................................................................................. 9-2Chapter 10TriggeringTriggering with a Digital Source ...................................................................................... 10-1