Telephony (Modem) Function
The telephony (modem) function provides the following settings:
Audio Subsystem
The crystal audio subsystem provides 16-bit stereo audio with
high-quality FM music synthesis using four operators per voice. It
can record, compress, and play back voice, sound, and music with
built-in mixer controls. It consists of an embedded microprocessor,
16-bit stereo, 20-voice FM music synthesizer (or 18 simultaneous
4-operator voices), MIDI serial port compatible MPU401 UART mode,
DMA control, and ISA bus interface logic.
The AudioDrive provides the computer with the following audio
features:
High-quality audio (44.1-kHz MPC-2 16-bit audio)
General MIDI compatible, 32-voice wave table synthesizer
Sound Blaster support
MIDI Port Function
The MIDI port I/O address is as follows (only when docked to the
docking station):
I/O Address IRQ Level DMA Channel
0220–0233 (default)
0240–0253
0260–0273
0280–0293
0388–038B (synthesizer)
IRQ 5 (default)
IRQ 7
IRQ 10
IRQ 11
DMA 0
DMA 1 (default)
DMA 6
DMA 7
Serial Port
COM1 (I/O: 03F8 - IRQ 4)
COM2 (I/O: 02F8 - IRQ 3) (default)
COM3 (I/O: 03E8 - IRQ 4)
COM4 (I/O: 02E8 - IRQ 3)
I/O Address
0300–0301
0330–0331 (default)
3-6 Subsystems
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