National Instruments NI SPEEDY-33 A, B

Glossary

NI SPEEDY-33 User Manual G-2 ni.com

A

A amperes

A/D Analog-to-Digital

AC Alternating Current

ADC Analog-to-Digital Converter—An electronic device, often an integrated

circuit, that converts an analog voltage to a digital number.

ADC resolution The resolution of the ADC measured in bits. A 16-bit ADC has a higher

resolution, and thus a higher degree of accuracy, than a 12-bit ADC.

ADE Application development environment such as LabVIEW,

LabWindows™/CVI™, BridgeVIEW, Visual Basic, C, and C++.

AI Analog Input

analog A signal whose amplitude can have a continuous range of values.

AO Analog Output

B

b bit—One binary digit, either 0 or 1.

B byte—Eight related bits of data, an eight-bit binary number. Also used to

denote the amount of memory required to store one byte of data.

bandwidth The range of frequencies present in a signal, or the range of frequencies to

which a measuring device can respond.

bit One binary digit, either 0 or 1.

boot The way you start or restart your computer or device. The procedure that is

run immediately following hardware reset or power-up.

buffer Temporary storage for acquired or generated data (software).

Contents

Main Page Important Information Warranty Copyright Trademarks Patents Compliance Compliance with FCC/Canada Radio Frequency Interference Regulations Determining FCC Class FCC/DOC Warnings Class A Conventions Contents Chapter 1 NI SPEEDY-33 Overview Chapter 2 NI SPEEDY-33 Functional Description and Interface Page NI SPEEDY-33 Overview Theory of Operation Safety Information Page Installation Software, Drivers, and Examples Page NI SPEEDY-33 Functional Description and Interface Figure 2-1. NISPEEDY-33 Top View DSP Chapter 2 NISPEEDY-33 Functional Description and Interface National Instruments Corporation 2-3 NI SPEEDY-33 User Manual Figure 2-2 shows the architectural details of the VC33 DSP. MUX Figure 2-2. VC33 DSP Functional Block Diagram Cache (64 x 32) Block0 (1 k x 32) Memory Map Figure 2-3. NISPEEDY-33 Memory Map Memory On-Chip Memory Flash Memory Ports PC USB Port Power Port Audio Stereo Input Port Audio Stereo Output Port Onboard Microphones Digital Output Port LEDs Switch Input Port Stereo A/D, D/A (Analog Input, Analog Output) I/O Connectors Simple Expansion Digital I/O Connector Standard Expansion Analog I/O Connectors Connecting Accessories to the NI SPEEDY-33 Jumpers Audio Input Level Jumpers Flash Boot Jumper Flash Write Enable Jumper NI SPEEDY-33 Enclosure Reset Button A Specifications Analog I/O Digital I/O Memory DSP Bus Interface Power Requirements Physical Environmental Safety Electromagnetic Compatibility CE Compliance Environmental Management Waste Electrical and Electronic Equipment (WEEE) RoHS B Technical Support and Professional Services Page Glossary Numbers/Symbols A B C D E F H I J K L M N O P R S U Page Index A B C D H I J K L O P R S T