© National Instruments Corporation 1-1 NI 660x User Manual
1
Introduction
This chapter describes the NI 660x devices, lists what you need to get
started, and describes optional equipment. If you have not already installed
the TIO device, refer to the DAQ Getting Started Guide.
About NI 660x Devices
The NI 660x devices are timing and digital I/O devices for use with the
PCI bus in PC-compatible computers, or PXI or CompactPCI chassis.
The NI 6601 offers four 32-bit counter channels and up to 32 lines of
individually configurable, TTL/CMOS-compatible digital I/O. The
NI 6602 offers this capability and four additional 32-bit counter channels.
The NI 6608 is a functional superset of the NI 6602 device with a
high-stability clock called an oven-controlled crystal oscillator (OCXO).
The counter/timer channels have many measurement and generation
modes, such as event counting, time measurement, frequency
measurement, encoder position measurement, pulse generation, and
square-wave generation.
The NI 660x devices contain the National Instruments MITE PCI interface.
The MITE offers bus-master operation, PCI burst transfers, and high-speed
DMA controller(s) for continuous, scatter-gather DMA without requiring
DMA resources from your computer. Refer to the Using PXI with
CompactPCI section for more information about your NI PXI-660x device.
Device specifications are available in the NI 660x Specifications document,
which is available for download from
ni.com/manuals.
Using PXI with CompactPCI
Using PXI-compatible products with standard products is an important
feature provided by PXI Hardware Specification Revision 2.1. If you use a
PXI-compatible plug-in module in a standard chassis, you cannot use
PXI-specific functions, but you can still use the basic plug-in device
functions. For example, the RTSI bus on a PXI TIO Series device is
available in a PXI chassis, but not in a CompactPCI chassis.
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