/I:n

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Enables

interrupt

sharing.

If

 

n =1,

interrupt

sharing

is

enabled.

Ifn =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.

Using

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.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CDSETUP

automatically

adds

an

MSCDEX

statement

to

your

AUTOEXEC.BAT

file.

 

 

 

You

can

modify

the

 

default

MSCDEX

parameters

to

customize

your

installation. This

 

section

explains

the

function

of

each

parameter. A

text

editor

can

be

used

to

modify

the

MSCDEX

statement

in

your

AUTOEXEC.BAT

 

file.

 

 

 

 

 

 

 

 

 

 

The following is the syntax of the MSCDEX.EXE entry in AUTOEXEC.BAT where

[drive:][path]MSCDEX.EXEspecifies the location (drive and directory) of the MSCDEX.EXE file.

[drive:] [path]MSCDEX.EXE /D:devicename [/M:n] [/E] [/V] [/L:driveletter] [/K][/S]

(Do

not

truncate

the actual device driver entry. Place the complete entry on one line

in

the

AUTOEXEC.BAT

file.)

Use the following options to configure the device driver.

/D:devicename

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Specifies

the

name

of

the

CD-ROM

drive

 

(eight

characters

maximum).

This

must be identical to the device

name

specified

in

the device

driver

in the

CONFIG.SYS

file.

For

example:

 

 

 

 

 

 

 

 

 

 

 

C:\MSCDEX.EXE /D:IBMCD1

 

 

 

 

 

 

 

 

 

You

might

support

multiple

CD-ROM

drives

(of

different

types)

by

installing

each

of

their device

drivers (naming

them

different

names)

and

placing

a

/D:devicename

 

in the MSCDEX

line

for

each

drive.

For

example,

if

you

wanted

 

to

support

an

IBM

IDE

CD-ROM

drive

and

an

IBM

SCSI

CD-ROM

 

drive,

 

your

CONFIG.SYS

file

could

have

 

these

statements:

 

 

 

 

DEVICE=C:\IBMIDECD.SYS /D:IDE_CD

DEVICE=C:\IBMCDROM.SYS /D:SCSI_CD

and your AUTOEXEC.BAT file would have this statement:

C:\MSCDEX /D:IDE_CD /D:SCSI_CD

/M: nn

Specifies the number of sector buffers for

temporary storage of the most recent

CD data. For example, to specify 12 sector buffers, you would use:

C:\MSCDEX.EXE /D:IBMCD1

/M:12

Part 3: Appendixes

3-3

Page 35
Image 35
IBM 37L1388 Use the following options to configure the device driver, Eight, Must be identical to the device, You Might