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DMA channel default assignment
Channel
DRQ/DACK0
DRQ/DACK1
DRQ/DACK2
DRQ/DACK3
DRQ/DACK4
DRQ/DACk7
I/O address map
Address
000-00F
020-021
040-043
060-060
061-061
064-064
070-071
080-08F
0A0-0A1
0C0-0DF
0F0-0FF
108-10F
120-13F
160-167
16E-16F
1F0-1F7
220-22F
2F8-2FF
330-331
370-371
378-37F
388-38F
3B0-3BB
3C0-3DF
3E8-3EF
4
Default setting
Yamaha sound system
audio
ECP
Floppy
Fast Infrared (COM2)
DMA controller
Yamaha Sound system
audio
DMA controller-1
Interrupt controller-1
System timer
Keyboard
System speaker
Keyboard
Real-time clock and NMI mask
DMA page register
Interrupt controller-2
DMA controller-2
Math coprocessor
Modem
USB HOST controller
IDE/ESDI CD-ROM
IDE/ESDI CD-ROM
PCI IDE controller
Audio (option)
IR serial port (COM2)
Audio (option)
Audio (option)
ECP printer port (LPT1)
Audio (option)
VGA
VGA
Modem
8-bit
8-bit
8-bit
8-bit
16-bit
16-bit
Device
TravelMate 310 Service Guide
mode
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