National Instruments pci-6110e-6111e 用户手册

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 National Instruments Corporation
1-1
Chapter
1
Introduction
This chapter describes your 611X E board, lists what you need to get 
started, describes the optional software and optional equipment, and 
explains how to unpack your 611X E board.
About the 611
X
 E Boards
Thank you for buying a National Instruments PCI-6110E/6111E 
board. Your 611X E board is a completely Plug and Play, multifunction 
analog, digital, and timing I/O board for PCI bus computers. The 
611E board features a 12-bit ADC per channel with four or two 
simultaneously sampling analog inputs, 16-bit DACs with voltage 
outputs, eight lines of TTL-compatible digital I/O, and two 24-bit 
counter/timers for timing I/O. Because the 611X E board has no DIP 
switches, jumpers, or potentiometers, it is easily software-configured 
and calibrated.
The 611X E board is a completely switchless and jumperless data 
acquisition (DAQ) board for the PCI bus. This feature is made possible 
by the National Instruments MITE bus interface chip that connects the 
board to the PCI I/O bus. The MITE implements the PCI Local Bus 
Specification so that the interrupts and base memory addresses are all 
software configured. 
The 611X E board uses the National Instruments DAQ-STC system 
timing controller for time-related functions. The DAQ-STC consists 
of three timing groups that control analog input, analog output, and 
general-purpose counter/timer functions. These groups include a total 
of seven 24-bit and three 16-bit counters and a maximum timing 
resolution of 50 ns. The DAQ-STC makes possible such applications as 
buffered pulse generation, equivalent time sampling, and seamlessly 
changing the sampling rate.
Often with DAQ boards, you cannot easily synchronize several 
measurement functions to a common trigger or timing event. The 
611E board has the Real-Time System Integration (RTSI) bus to 
solve this problem. The RTSI bus consists of our RTSI bus interface 
PCI_E.book  Page 1  Thursday, June 25, 1998  12:55 PM