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APPENDIX
MB990 User’s Manual 63
Appendix
A. I/O Port Address Map
Each peripheral device in the system is assigned a set of I/O port
addresses which also becomes the identity of the device. The following
table lists the I/O port addresses used.
Address Device Description
0000h-0CF7h PCI Express Root Complex
0040h-0043h System timer
0050h-0053h System timer
0070h-0070h System CMOS/real time clock
00F0h-00F0h Numeric data processor
02E0h-02E7h Communications Port (COM6)
02E8h-02EFh Communications Port (COM4)
02F0h-02F7h Communications Port (COM5)
02F8h-02FFh Communications Port (COM2)
03B0h-03BBh Intel(R) HD Graphics 530
03C0h-03DFh Intel(R) HD Graphics 530
03E8h-03EFh Communications Port (COM3)
03F8h-03FFh Communications Port (COM1)
0D00h-FFFFh PCI Express Root Complex
E000h-EFFFh Intel(R) 100 Series/C230 Series Chipset Family PCI
Express Root Port #6 - A115
F000h-F03Fh Intel(R) HD Graphics 530
F040h-F05Fh Intel(R) 100 Series/C230 Series Chipset SMBus - A123
F060h-F07Fh Standard SATA AHCI Controller
F080h-F083h Standard SATA AHCI Controller
F090h-F097h Standard SATA AHCI Controller
F0A0h-F0A7h Intel(R) Active Management Technology - SOL (COM7)