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© National Instruments Corporation 2-1 NI PCI-1405 User Manual
2
Hardware Overview
This chapter presents an overview of the hardware functions on the
NI 1405 and explains the operation of each functional unit making up
the NI 1405.
Functional Overview
The NI 1405 features a high-speed data path optimized for the acquisition
and formatting of video data from analog monochrome and color cameras.
The block diagram in Figure 2-1 illustrates the key functional components
of the NI 1405.
Figure 2-1. NI 1405 Block Diagram
Analog Video
Video
Decoder
External Trigger
PCI Bus
IMAQ SDRAM
Memory
Interface
SDRAM
PCI Interface and
Scatter-Gather
DMA Controller
Acquisition,
ROI, and
Control