Lenovo ThinkPad 770 Technical Reference Manual for the ThinkPad 770 - Page 59
Subsystems
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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 3-1
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
3-1