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National Instruments Corporation
3-1
3
Hardware Overview
This chapter presents an overview of the hardware functions on your
PCI/PXI-1407 and explains the operation of each functional unit making
up the PCI/PXI-1407.
Functional Overview
The PCI/PXI 1407 features an 8-bit flash ADC that converts analog video
signals into digital form. The board has both gain and offset circuitry to
optimize the input signal range of the ADC. It also features a PCI interface
for high-speed data transfer. The scatter-gather DMA controllers transfer
the digitized image data from a set of first-in, first-out (FIFO) memory
buffers to the computer’s system memory via the PCI bus. The board also
includes a trigger for controlling the image acquisition.
The block diagram in Figure 3-1 illustrates the key functional components
of the PCI-1407 and PXI-1407.
