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Appendix A
54
KEM
X
-
2030
User’s Manua
l
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