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SET BLASTER = A240 I7 D3 T4

By harvardd ·
SET BLASTER = A240 I7 D3 T4

In conifg.sys. what does the above entiry mean?

A240- is this a pysical port? (what is 240?0

What does the T4 mena?

Thanks

Tony

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SET BLASTER = A240 I7 D3 T4

by dmiles In reply to SET BLASTER = A240 I7 ...

A-Specifies the audio interface's base I/O address can be 220,240,260, or 280
I-Specifies the interrupt request line used by the audio interface
D-Specifies the low DMA channel used by audio interface
T-Specifies the card type. x must be 6

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SET BLASTER = A240 I7 D3 T4

by harvardd In reply to SET BLASTER = A240 I7 ...

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SET BLASTER = A240 I7 D3 T4

by ChrisTOTG In reply to SET BLASTER = A240 I7 ...

The setting you are referring to is for DOS based applications to recognize a Sound Blaster compatible sound card. There have been a few additions over the years to the options you can list - here are the ones I can think of:
A is the bsae I/O portand 220 is the standard. Other choices include 240,260,280.
I is the IRQ and was originally 7. This would share IRQs with the printer port, slowing printer accesss by about 2/3. The usual numbers you see now are 5 or 10.
D is the 8-bit DMA channeland H is the 16-bit DMA channel
T is the card type - 1 is original sound blaster, 2 is the sound blaster 1.5... I don't remember what the other high ones are, but on AWE32 or higher ISA cards it's 6. I think 4 is Sound Blaster Pro.

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SET BLASTER = A240 I7 D3 T4

by harvardd In reply to SET BLASTER = A240 I7 ...

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SET BLASTER = A240 I7 D3 T4

by harvardd In reply to SET BLASTER = A240 I7 ...

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