Integrated Audio; Diskette Drive - NEC PowerMate Enterprise Manual

1-24 Technical Information
With 4 MB of video memory, the Cirrus Logic DM-5465 AGP video board supports the
following additional resolutions, colors, and refresh rates:
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1024 x 768 — 16 million colors at 43 (interlaced), 60, 70, 75, and 85 Hz
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1280 x 1024 — 65K/16 million colors at 43 (interlaced), 60, 72, 75, and 85 Hz
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1600 x 1200 — 256 colors at 48 (interlaced), 60, 70, and 75 Hz.

Integrated Audio

To support the increasing number of multimedia applications, a Yamaha OPL3-SA3 chip is
integrated on some system boards. The chip provides 16-bit stereo, Sound Blaster Pro -
compatible audio. System boards with audio provide a line out jack and microphone jack.
The sound system provides all the digital and analog mixing functions required for playing
and recording audio on personal computers. Features include stereo analog-to-digital and
digital-to-analog converters, analog mixing, anti-aliasing and reconstruction filters, line and
microphone level inputs, digital audio compression, and full digital control of all mixer and
volume control functions.
The sound system is standard and features the following:
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Yamaha OPL3-SA3 chip integrated on system board
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digital audio and analog mixing functions, including stereo analog-to-digital and
digital-to-analog converters, analog mixing, anti-aliasing and reconstruction
filters, line and microphone level inputs, digital audio compression, and full digital
control of mixer and volume control functions
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Adlib, Sound Blaster Pro 2.0, Windows Sound System , and MPU-401
compatibility.
The Yamaha OPL3-SA3 includes a full Plug and Play interface. Each logical device is
configured into the host environment using the Plug and Play configuration methodologies.
The audio subsystem requires two DMA channels and one interrupt.

DISKETTE DRIVE

A diskette drive is supported in the system. The installed 1.44-MB 3 1/2-inch diskette drive
is connected by a single ribbon cable with two connectors. The diskette drive cable plugs
directly into the riser board. Typically, there are no switches or jumpers that need to be set,
the diskette drive is terminated, and the cable determines drive A and B. Connector
locations are given in Appendix A. Diskette drive specifications are given in Table 1-19.