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Modem Subsystem
The modem subsystem is composed of a digital signal processor
(DSP) and a data access arrangement (DAA):
General MIDI-compatible, 32-voice wave table synthesizer
36.6-kbps data/fax modem
Full-feature telephone
Answering machine
Headphone-free, full-duplex speaker phone
ThinkPad Modem
The modem subsystem provides three system settings: I/O address,
IRQ level, and DMA channel.
MIDI Port Function
The MIDI port function provides one system setting:
Sound Blaster Support Function
The Sound Blaster support function provides three system settings:
I/O address, IRQ level, and DMA channel.
I/O Address IRQ Level DMA Channel
0130–013F (default)
0350–035F
0770–077F
0DB0–0DBF
IRQ 3
IRQ 4
IRQ 5
IRQ 7
IRQ 10 (default)
IRQ 11
IRQ 15
DMA 0
DMA 1
DMA 6
DMA 7 (default)
I/O Address
0300–0303
0310–0313
0320–0323
0330–0333 (default)
Subsystems 3-5