National Instruments PCI-4451, PCI-4452 Hardware Overview

© National Instruments Corporation 3-1 PCI-4451/4452 User Manual
3
Hardware Overview
This chapter presents an overview of the hardware functions on your
PCI-4451/4452 device. Figure3-1 shows a block diagram of the digital
functions. Figure3-2 shows a block diagram of the analog functions.
Thetwo function blocks connect through the analog mezzanine bus.
Figure 3-1. Digital Function Block Diagram
Direct Digital
Synthesis
Clock Generator
DAQ-STC
AI FIFO
MITE
PCI Controller
PCI Bus
AO FIFO
†
Parallel <-> Serial
Converter
FIFO and DMA
Control
General Control
Functions
Clock Control
RTSI Bus
Digital I/O Bus
Analog Mezzanine Bus (to Analog Section)
Analog Mezzanine Control
†
PCI-4451 only
User.book Page 1 Tuesday, April 14, 1998 10:20 AM