Intel KEMX-2030 User Manual
Page 54
Appendix A
54
KEMX-2030 User’s Manual
DMA Channels
DMA #
Used For
Comment
0 Memory
Refresh
1 Sound
Note
(1)
2
Floppy disk controller
Note (1)
3
free
Unavailable if LPT
used in ECP mode.
4 Cascade
5 Sound
Note
(1)
6 free
7 free
Note: If the "Used For" device is disabled in setup, the corresponding interrupt
is available for other devices.
Memory Mapping
Upper Memory
Used For
Comment
C0000h - CBFFFh
VGA BIOS
No
CC000h - CFFFFh
CD000h - CDFFFh
LAN Option ROM
Yes
E0000h - FFFFFh
System BIOS
No
PCI Devices
PCI Device
PCI Interrupt
Comment
LAN INTA AD20
PCI Express Devices
PCIe Device
PCIe Interrupt Comment
PCIe x1 Slot 1
INTC
Inter-IC Bus (I2C)
I2C Address
Used For
Comment
A0h
DDR2-RAM DIMM Socket 0
Address
ISA I/O Port
I2C Address
Used For
Comment
2Eh Super
I/O
2Eh
WatchDog Timer
Reference register in Super I/O
I/O Address Map
I/O Address
Used For
Comment
00h – 0Fh
C0h – DFh
8237DMA Controller
20h, 21h
8259A PIC
2Eh, 2Fh
SuperIO Access Port
A0h, A1h
8259A PIC
40h – 43h (XT/AT)
8254PIT