Operating Instructions and Installation Instructions

B-4 SB Emulation in MS-DOS/ Windows 95/98/ME

Interrupt Request (IRQ)

Line

An IRQ line is a signal line that a device uses to notify your computer’s central processor that it

wants to send or receive data for processing.

Direct Memory Access

(DMA) Channel

A DMA channel is a data channel that a device uses to transfer data directly to and from the

system memory.

Stereo music synthesiser

388H to 38BH

Table B-1: Possible default input/output (I/O) addresses.

Device Default I/O Address Range

Table B-2: Possible default interrupt request (IRQ) line assignment.

Device Default IRQ Line

SB interface

, 7, 9, 10

Table B-3: Possible default direct memory access (DMA) channel assignment.

Usage Default DMA Channel

First DMA channel 0,

, 3

Second DMA channel

, 6, 7