YMF715E

(4) LDN=3:CD-ROM

I/O (/CDCS0): 16bit address decode

Index

Best

Acceptable1

Acceptable2

Acceptable3

 

 

 

 

 

 

 

 

 

 

I/O

1E8h

100-1F8h

<-

<-

Length

8

8

<-

<-

 

 

 

 

 

Alignment

-

8

<-

<-

 

 

 

 

 

I/O (/CDCS1): 16bit address decode

Index

Best

Acceptable1

Acceptable2

Acceptable3

 

 

 

 

 

 

 

 

 

 

I/O

3EEh

306-3F6h

<-

<-

Length

1

1

<-

<-

 

 

 

 

 

Alignment

-

8

<-

<-

 

 

 

 

 

IRQ: high-active, edge-sense

Index

Best

Acceptable1

Acceptable2

Acceptable3

 

 

 

 

 

 

 

 

 

 

IRQ

11

3,5,7,9,10,11

<-

<-

2-4. Manual Configuration Mode

When OPL3-SA3 is in the Wait for Key state, it can be changed to the Manual Configuration mode by sending the following YAMAHA key to Address_Port. The Manual Configuration mode is used for downloading the resource data to EEPROM and internal SRAM, setting up the OPL3-SA3 without PnP protocol.

YAMAHA Key:

B1h, D8h, 6Ch, 36h, 9Bh, 4Dh, A6h, D3h,

69h, B4h, 5Ah, ADh, D6h, EBh, 75h, BAh,

DDh, EEh, F7h, 7Bh, 3Dh, 9Eh, CFh, 67h,

33h, 19h, 8Ch, 46h, A3h, 51h, A8h, 54h

In the Manual Configuration mode, PnP registers can be accessed by the host without PnP protocol. Right after OPL3-SA3 is switched to the Manual Configuration mode, set “81h” in CSN register automatically to put OPL3-SA3 in ‘Sleep’ State. And when “81h” is written to Wake [CSN], it becomes possible to access to Configuration register of each logical device from the host.

To return from the Manual Configuration mode to PnP auto-configuration mode, the Wait for Key command should be sent.

Note :

The Manual Configuration mode can not be used in the system with more than one OPL3-SA3’s card installed in the ISA slot.

May 21, 1997

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Yamaha OPL3-SA3 specifications LDN=3CD-ROM, Manual Configuration Mode
Page 18 Page 20

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.
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