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 . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
MIDI Port Function ........................ 3-6
Sound Blaster Support Function ................ 3-7
Audio Port Specifications ..................... 3-7
Infrared (IR) Subsystem ....................... 3-8
IRQ Level and DMA Channel .................. 3-8
PC Card Subsystem ......................... 3-9
Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
IDE Channel on the UltraSlim Bay ................ 3-12
MIDI/Joystick Port . . . . . . . . . . . . . . . . . . . . . . . . . 3-12
MIDI Interface . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12
Joystick Interface . . . . . . . . . . . . . . . . . . . . . . . . 3-13
This section describes the video, DSP, audio, IR, and PCMCIA
subsystems of the ThinkPad 600 computer.
Copyright IBM Corp. 1998 3-1
