Section 3. Subsystems

Section 3. Subsystems

Video Subsystem . . .

. . . . .

. . . .

.3-2

Video Modes . . . .

. . . . . . . . . 3.-3

Modem Subsystem

 

. . .

. . . . .

. . . .

3.-5

ThinkPad Modem

 

. .

. . . . . . . . . .3-5

MIDI

Port

Function. . . . . . . . . . . . . . . . . . .3-.5 . . . .

Sound

Blaster

Support

Function. . . . . . . . . . . . .3.-5 . .

Telephony

(Modem) Function. . . . . . . . . . . . . . 3. -6. . .

Audio Subsystem . . .

. . . . . . . . . .3-7

MIDI

Port

Function. . . . . . . . . . . . . . . . . . .3-.7 . . . .

Sound

Blaster

Support

Function. . . . . . . . . . . . .3.-7 . .

Audio Port Specifications. . . . . . . . . . . . . . . . .3-.8 . . .

Infrared (IR) Subsystem. . . . . . . . . . . . . . . . . .3.-9 . . . .

IRQ

Level

and DMA

Channel. . . . . . . . . . . . . . 3. -9. . .

Enhanced Video Subsystem. . . . . . . . . . . . . . . 3.-10. . .

Video Port Specification. . . . . . . . . . . . . . . .3.-10. . .

PCMCIA Subsystem

 

. .

. . . . . . . . . .3-11

Pin Assignments

 

. . .

. . . . . . . . . 3-.12

IDE Channel on the UltraBay. . . II. . . . . . . . . . . .3-.14. .

MIDI/Joystick Port. . .

. . . . . . . . . 3-.14

MIDI Interface. . . . . . . . . . . . 3. -14

Joystick Interface. .

. . . . . . . . . .3-14

This

section

describes

the

video,

DSP, Audio, IR, Enhanced video,

and

PCMCIA

subsystems

of the

ThinkPad

computers.

 

 Copyright IBM Corp. 1997

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IBM 770 manual Subsystems