National Instruments Printer PCI-1405 User Manual download pdf (Page 12)

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

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National Instruments Printer PCI-1405 User Manual Page 12