National Instruments NB-DMA2800 DMA controller board

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National Instruments · Macintosh NuBus

NB-DMA2800

Name: NB-DMA2800
Brand: National Instruments

The National Instruments NB-DMA2800 is a DMA controller board for legacy Macintosh NuBus systems. NI documentation identifies it as a DMA device used with NuBus data acquisition hardware that supports DMA transfers.

ManufacturerNational Instruments

ModelNB-DMA2800

Product TypeDMA controller board

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FunctionDirect memory access (DMA) controller

Host platformMacintosh NuBus

Legacy driver supportListed under NI-DAQ 4.9.4 for Macintosh

Documented system useUsed alongside NB-MIO-16 and NB-DIO-32F in a Macintosh IIfx measurement system

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Overview

Product overview

Key product information and technical features.

The NB-DMA2800 provides the DMA-controller role in legacy National Instruments Macintosh acquisition systems. The LabVIEW Function and VI Reference Manual explains that NuBus DAQ devices supporting DMA transfers require a separate DMA device, giving the NB-DMA2800 as an example.

An NI-published application report describes the board operating in an Apple Macintosh IIfx with an NB-MIO-16 multifunction DAQ board, an NB-DIO-32F digital I/O board, and LabVIEW. Software selection is important: NI lists the NB-DMA2800 under NI-DAQ 4.9.4 support and states that NI-DAQ 6.x does not support NuBus devices.

DMA controller board for Macintosh NuBus acquisition systems.
Identified by NI as a separate DMA device for NuBus DAQ hardware supporting DMA transfers.
Included in NI's supported NuBus hardware list for NI-DAQ 4.9.4 on Macintosh.

Verified specifications

Technical data

Verified product specifications.

Controller function	DMA controller
Bus platform	NuBus
Host computer platform	Macintosh
Documented driver support	NI-DAQ 4.9.4 for Macintosh

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National Instruments

Manufacturer

Macintosh NuBus

Host hardware platform

NB-DMA2800

DMA controller board

Driver context

NI lists NB-DMA2800 support under NI-DAQ 4.9.4 for Macintosh.

Check the host Macintosh, companion DAQ boards, and legacy driver requirements before integration; NI-DAQ 6.x does not support NuBus devices.

Manuals & software

Technical resources

Manuals, software and technical resources for this model.

LabVIEW Data Acquisition Basics ManualArchived Manual · download.ni.com

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LabVIEW Function and VI Reference ManualArchived Reference Manual · download.ni.com

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NI-DAQ and NI-DAQmx Base Driver Support on Mac SystemsArchived Support Article, Chinese · ni.com

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Automated System for Educational Training on Punching Process CharacterizationTechnical resource

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FAQ

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Product-specific answers based on available technical information.

What does the NB-DMA2800 do?

It is a DMA controller board. NI identifies the NB-DMA2800 as an example of the separate DMA device required when using DMA-capable NuBus DAQ hardware on Macintosh.

Which driver version lists NB-DMA2800 support?

NI's Macintosh driver-support article lists the NB-DMA2800 under NI-DAQ 4.9.4. The same article states that NI-DAQ 6.x does not support NuBus devices.

Has the NB-DMA2800 been documented with NB-MIO-16 and NB-DIO-32F boards?

Yes. An NI-published punching-process measurement application used these boards with the DMA controller in an Apple Macintosh IIfx running LabVIEW. This documents that particular configuration, not universal compatibility with all Macintosh systems.