Acer 800 manual Address Map, IRQ Assignment Map

SG_TM800.book Page 30 Thursday, February 27, 2003 10:21 PM

I/O Address Map

I/O Address	Function
000-00F	DMA controller-1
020-021	Interrupt controller-1
040-043	Timer 1
060, 064	Keyboard controller 38859 chip select
061	System speaker out
040B	DMA controller-1
061	System speaker
070-073	Real-time clock and NMI mask
080-08F	DMA page register
0A0-0A1	Interrupt controller-2
0C0-0DF	DMA controller-2
66, 62	Power management controller
0F0-0FF	Numeric data processor
170-177	2nd EIDE device (CD-ROM) select
1F0-1F7	1st EIDE device (hard drive) select
220-22F	Audio
240-24F	Audio (optional)
278-27F	Parallel port 3
378,37A	Paraller port 1
3B0-3BB	Video Controller
3C0-3DF
3F0h-3F7	Standard Floppy Disk Controller
3F0-3F7	Floppy disk controller
480-48F, 4D6	DMA controller-1
4D0-4D1	PCI configuration register
CF8-CFF

IRQ Assignment Map

Interrupt Channel	Function(Hardware)
IRQ00	System Timer
IRQ01	Keyboard
IRQ03	IrDA Fast Infrared Port
IRQ04	Communications Port (COM1)
IRQ05	LAN, USB
IRQ06	Free
IRQ07	Free
IRQ08	System CMOS / realtime clock
IRQ09	SCI IRQ used by ACPI bus, Wireless LAN
IRQ10	USB, Modem, VGA, MultiMedia Bay, 1394, Audio
IRQ11	O2 Micro Smart CardBus Reader
IRQ12	Synaptics PS/2 port pointing device
IRQ13	Numeric data processor
IRQ14	1st EIDE device (hard disk)
IRQ15	2nd EIDE device (CD-ROM drive)

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