116.303 bytes

Service Hints & Tips

Document ID: LWIK-3RVQCJ

TP 365 - Hardware resource assignments

Applicable to: World-Wide

This is the default IRQ and DMA assignment for the ThinkPad 365X and 365XD.

ThinkPad 365X & 365XD Memory Map

Location

Use

0000 - 9FFF

System RAM

A000-AFFF

Video Graphics

B000-B7FF

Mono Video

B800-BFFF

Video Text

C000-C7FF

Video BIOS

C800-DFFF

Available

E000-EFFF

Available

F000-FFFF

System BIOS


ThinkPad 365C, 365CD, 365CS, & 365CSD Memory Map

BIOS dated

before 2/2/96

BIOS dated

after 2/22/96

Location

Use

Location

Use

0000 - 9FFF

System RAM

0000 - 9FFF

System RAM

A000-AFFF

Video Graphics

A000-AFFF

Video Graphics

B000-B7FF

Mono Video

B000-B7FF

Mono Video

B800-BFFF

Video Text

B800-BFFF

Video Text

C000-C9FF

Video BIOS

C000-C5FF

System Setup

CA00-CFFF

Open (no PCMCIA cards)

C600-C7FF

Open (no PCMCIA Cards)

D000-DFFF

Available

C800-DFFF

Available

E000-E5FF

System Setup

E000-E9FF

Video BIOS

E600-E9FF

Open (no PCMCIA cards)

EA00-EFFF

Power Management

EA00-EFFF

Power Management

F000-FFFF

System BIOS

F000-FFFF

System BIOS

Note:
Available means open for PCMCIA Card Usage and for UMB Usage.

ThinkPad 365X/XD Interrupt Assignments

2

3

4

5

7

9

10

11

15

Cascade Interrupt Req.

def

Serial Port

opt

opt

Parallel Port

opt

def

ESS Audio

def

opt

PCMCIA cards

opt

opt

opt

opt

opt

opt

opt

opt

opt

Infrared

opt

def

opt

opt

opt

opt

MIDI port (in port replicator)

def

opt

opt

opt

ThinkPad 365C/CD/CS/CSD Interrupt Assignments

2

3

4

5

7

9

10

11

15

Cascade Interrupt Req.

def

Serial Port

opt

def

Parallel Port

opt

def

Audio Port

def

opt

PCMCIA cards

opt

opt

opt

opt

opt

opt

opt

opt

opt

Infrared

opt

CD-ROM drive
(on CD models)

def


Where: Def = Default; Opt = Optional

Note 1
The following interrupts are used by the system: IRQ 0 (Timer), IRQ 1 (Keyboard), IRQ 6 (Floppy Diskette Drive), IRQ 8 (Real-time Clock), IRQ 12 (Mouse/Trackpoint), IRQ 13 (Math Coprocessor), and IRQ 14 (Hard Disk Drive).

TP 365X/XD - ESS Audio, Sound Blaster, and the MIDI Port in the Port Replicator share the same IRQ.

ThinkPad 365X & 365XD DMA Channel Assignments

DMA

Default Assignment

Other posible use

DRQ0

Infrared

Parallel port,
ESS audio

DRQ1

ESS audio

Parallel port

DRQ2

Diskette drive

DRQ3

Infrared

Parallel port

DRQ4

Cascade

DRQ5

Unused

DRQ6

Unused

DRQ7

Unused

The attached file contains a document providing technical Information, tips and techniques. This file is in Adobe Acrobat format, and can only be viewed through the Adobe Acrobat Reader. If you do not have a copy of the reader, double click on the following icon to obtain one:-

Search Keywords

Hint Category

Configuration

Date Created

26-04-96

Last Updated

26-03-98

Revision Date

12-03-99

Brand

IBM ThinkPad

Product Family

ThinkPad 365X/XD, ThinkPad 365C/CS, ThinkPad 365CD/CSD

Machine Type

2625

Model

Various

TypeModel

Retain Tip (if applicable)

Reverse Doclinks
and Admin Purposes