©
National Instruments Corporation
2-1
2
Hardware Overview
This chapter presents an overview of the hardware functions on the
NI 1411 and explains the operation of each functional unit making up
the NI 1411.
Functional Overview
The NI 1411 features a flexible, 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 1411.
Figure 2-1.
NI 1411 Block Diagram
Video Acquisition
The NI 1411 can acquire analog color video in a variety of modes and store
the images in the onboard SDRAM memory or transfer the images directly
to PCI system memory.
Acquisition, ROI,
and Control
IMAQ
SDRAM
Memory
Interface
LUT
External Trigger
Analog Video
(BNC or S-Video)
Color
Space
Processor
SDRAM
Video
Decoder
PCI Interface
and
Scatter-Gather
DMA
Controller
PCI Bus
