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However, if your computer (or IDE adapter) uses different IDE port addresses or interrupts, you must use this
option. Refer to the instructions that come with your computer or IDE adapter to understand how your
computer or adapter is configured.
xxx is the base address of the IDE port.
1F0 for the primary IDE port (Port 1)
170 for the secondary IDE port (Port 2)
yy is the interrupt (IRQ) level.
14 for the primary IDE port (Port 1)
15 or 10 for the secondary IDE port (Port 2)
As an example, when four drives have been connected, the syntax in the CONFIG.SYS file would be:
Do not truncate the actual device driver entry. Place the complete DEVICE= on one line in the CONFIG.SYS
file.
/A:n specifies the audio play mode. For a stereo CD, /A:0 or /A:1 is acceptable. For a monaural CD (left or
right channel only),
/A:1 will play the monaural audio signal from both the right and left channels. The default is n=0.
/U:n Initialize with the tray locked or unlocked. /U:0 is unlock.
/U:1 is lock. The default is n=0. This command might be used if you wish to secure your CD in the drive.
/L:xx specifies the message language where xx designates the language.
US: English (default, does not need to be specified)
GR: German
FR: French
SP: Spanish
IT: Italian
JP: Japanese
/T:n initializes with time delays built into the IDE read loop. Use this parameter only in computers that do not
support the
IOCHRDY signal on the IDE bus, and that read from the IDE port faster than the CD-ROM can provide data.
This is a very uncommon situation and normally this parameter is not required in most computers.
n is a relative timing parameter that depends on processor speed. The larger the value of n, the slower the
drive will transfer data. Valid values for n are 0 through 99. The default for n is 0, and the /T parameter is not
required.
/I:n enables interrupt sharing. If n=1, interrupt sharing is enabled. If n=0, interrupt sharing is disabled. The
default value is 0. Enable this parameter when the IDE interrupt must be shared with another device. For
example, a PS/2 9577 computer with IDE could share interrupt 14 with the IBM SCSI Adapter /A.
MicroSoft CD-ROM Extensions:
Microsoft CD-ROM Extensions (MSCDEX.EXE) is an executable program that works in conjunction with the
device driver (IBMIDECD.SYS) to allow your computer to access CDs as if they were DOS-formatted disks.
MSCDEX is specifically designed to work with DOS and Windows.
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