1-16 Technical Information
The sound system provides all the digital and analog mixing functions required for playing
and recording audio on personal computers, 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 all mixer and
volume control functions.
The sound system is standard on multimedia configurations and features the following:
n
16-bit Crystal CS4236 multimedia Codec and Yamaha OPL3 FM synthesizer
n
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
n
Adlib, Sound Blaster Pro 2.0, Windows Sound System, and MPU-401
compatibility
The CS4236 includes a full Plug and Play interface and is comprised of seven logical
devices, including the Synthesizer, Game Port, Sound Blaster, Sound System, MPU-401,
CD-ROM, and the CS4243 device itself. 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 (see below for defaults).
If CMOS is cleared, the sound board settings stored in the BIOS will not be restored with
the defaults. Use an ISA Configuration Utility (ICU) to restore the sound board settings.
The NEC defaults are as follows.
n
I/O RANGE:
0220-0233
n
I/O RANGE:
0330-0331
n
I/O RANGE:
0388-038B
n
I/O RANGE:
0200-0207
n
IRQ:
05
n
DMA
01
n
DMA
05
SCSI BOARD
SCSI configurations come with an Adaptec 2940UW Ultra Wide SCSI adapter board
installed in an PCI expansion slot. The SCSI adapter board brings the highest performance
SCSI I/O technology to the PCI local-bus, transferring data up to 133 MB/second. The
SCSI adapter board is compatible with all major operating systems, SCSI-2 and SCSI-3
peripherals, and industry-standard application software.
