Yamaha OPL3-SA3 specifications ISA Interface, PnP Auto-Configuration mode

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YMF715E

2. ISA Interface

OPL3-SA3 supports ISA Plug and Play (PnP) that frees the users from configuring the I/O address, IRQ and DMA channel. Those system resources are set automatically by the system. However even when used in Non PnP system, the configuration can be changed with software.

2-1. PnP Auto-Configuration mode

OPL3-SA3 has the following I/O port to support the Plug and Play ISA.

Address port:	279h
Write Data Port:	A79h
Relocatable Read Data Port:	203h - 03FFh

The following four Logical Devices are supported by OPL3-SA3.

Logical Device No. 0
Sound Blaster compatible Playback system	(SB Base)
16-bit CODEC	(WSS Base)
MPU401	(MPU Base)
OPL3	(AdLib Base)
OPL3-SA3 control register	(CTRL Base)
Logical Device No. 1
Joy Stick
Logical Device No. 2 (Optional)
MODEM (COM port)
Logical Device No. 3 (Optional)
IDE CD-ROM interface

May 21, 1997

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Contents YMF715E YMF715E AEN TTL ResetTTL IOWTXD TTL CmosRXD VolupBlock Diagram Multi-purpose pin Multi-purpose function SEL=0 SEL=1 SEL=2 SEL=3 SEL=4 SEL=5 SEL=6 SEL=7Pin description Eeprom System Block DiagramAEN Resetdrv IOW,/IOR AENIOW,/IOR SA2-0 SEL=4 for Notebook PC SEL=5 for Notebook PC SEL=7 for Notebook PC, Desktop PC OPL3 PnP Auto-Configuration modeISA Interface PnP ISA Configuration Register Card Control RegistersLogical Device Number = 1 Joystick Recommended Resource Data Logical Device Number = 3 CD-ROM OptionalLDN=2MODEM Manual Configuration Mode LDN=3CD-ROMExternal Eeprom Hardware Volume InterruptDownload Resource data YMODE1 YMODE0 DAC interface3D Enhanced Control Power Management VrefPDN=PDX=1 Partial Power Down ModePower Save Mode APM OPL3-SA3 Suspend/Resume ModeBios OFFOPL3 Data Register Array 0 R/W Register description 9-1. SA Sound System 9-1-1. OPL3OPL3 Status Register RO Sound Blaster Pro compatibility OPL3 Data Register Array 1 R/WDSP Command Sound Blaster Pro compatibility Mixer SA3 Ctrl WSS Status Register RO WSS Configuration Register ROWSS compatible 16-bit Codec WSS Codec Direct Registers R/WWSS Codec Indirect Registers R/W OPL3-SA3 control register Power Management R/WMPU401 IDSEL1 IDSEL0 System control R/WSbhe Interrupt IRQ-A status RO Interrupt Channel configuration R/WIRQ-A WSS + OPL3 DMA-A WSS-P DMA-B WSS-R + SB DMA configuration R/WInterrupt IRQ-B status RO MIC Volume R/W Master Volume Lch R/WMaster Volume Rch R/W Mode MiscellaneousMcsw WSS DMA Base counter R/WSbpdr Sound Blaster compatibility Internal State Scan out/in R/WSbpda Sound Blaster compatibility Internal State Scan Data R/WSBPDA=1 SBPDA=0SBPDR=1 SBPDR=0Fmdac Digital Block Partial Power Down R/WAnalog Block Partial Power Down R/W Sbdac3D Enhanced controlTREBLE R/W 3D Enhanced controlWIDE R/W3D Enhanced controlBASS R/W Modem Hardware Volume Interrupt Channel Configuration R/WJoystick Multi-purpose Select Pin Status ROCD-ROM Recommended Operating Conditions Electrical Characteristics Absolute Maximum RatingsDC Characteristics 1 Dvdd = 5.0±0.25V DC Characteristics 2 Dvdd = 3.3±0.30V Serial Audio Zoomed Video Interface Input AC CharacteristicsCPU Interface & DMA BUS Cycle ,2,3,4,5,6,7,8 Bclk ↑/LRCKSymbol Condition Min Typ Max Unit Master Clock Frequency Write Cycle 8bit Mono & Adpcm DMA Write Cycle 8bit Stereo or 16bit Mono DMA Cycle External Interface External Synthesizer, CD ROM, Modem Analog Output Characteristics Analog CharacteristicsAnalog Input Characteristics ･ LINE/AUX1,2/MIN/MICExternal Dimensions Yamaha Corporation

OPL3-SA3 specifications

The Yamaha OPL3-SA3 is a highly regarded sound card known for its exceptional audio performance and versatility, capturing the interest of enthusiasts and professionals in the digital audio realm. As an advanced version of the popular OPL3 series, the OPL3-SA3 integrates cutting-edge technologies that enhance its sound generation capabilities, making it a sought-after component for both music production and gaming applications.

One of the key features of the Yamaha OPL3-SA3 is its use of the FM synthesis technology, which allows for the generation of rich, complex sounds that are particularly favored in electronic and video game music. The OPL3 architecture supports up to 18 channels of audio output, enabling the simultaneous playback of multiple sounds without compromising quality. This multichannel capability enhances its use in audio applications, where layering various sound elements is crucial.

In addition to its synthesis features, the OPL3-SA3 also incorporates advanced MIDI capabilities, allowing musicians to connect and control external MIDI devices seamlessly. The integration of General MIDI support expands its usability in various music production setups. This makes the OPL3-SA3 a versatile option for composers and sound designers looking to create intricate soundscapes or realistic instrument simulations.

The audio quality of the OPL3-SA3 is further complemented by its 16-bit resolution and a sampling rate of up to 44.1 kHz, delivering clear and dynamic audio playback. This high level of fidelity is essential for generating lifelike sounds, making it suitable for both professional recordings and high-quality gaming experiences.

Another notable characteristic of the OPL3-SA3 is its compatibility with a wide range of operating systems, including DOS and Windows platforms, enhancing its accessibility for users of different systems. The card's drivers are designed for simplicity and reliability, ensuring that it can be easily integrated into existing audio setups.

With its combination of FM synthesis, MIDI capabilities, multichannel support, and high-fidelity audio performance, the Yamaha OPL3-SA3 stands out as a powerful tool for sound generation. Whether utilized by musicians, audio engineers, or game developers, the OPL3-SA3 continues to be a valuable asset in the evolving landscape of digital audio. Its legacy in the realm of sound cards remains influential, showcasing Yamaha's commitment to innovation and quality in the field of audio technology.