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System I/O address specifications
I/O address (hex) System function (shipping configuration)
00-1F DMA Controller Channel 0-3
CF7 PCI Bus on MS ACPI-Compliant System
20 - 21 Programmable Interrupt Controller (Master Controller)
24 - 25 Programmable Interrupt Controller (Aliases)
28 - 29 Programmable Interrupt Controller (Aliases)
2C - 2D Programmable Interrupt Controller (Aliases)
2E -2F M/B Resource (LPC Controller)
30 - 31 Programmable Interrupt Controller (Aliases)
34 - 35 Programmable Interrupt Controller (Aliases)
38 - 39 Programmable Interrupt Controller (Aliases)
3C - 3D Programmable Interrupt Controller (Aliases)
40 - 43 System Timer
4E - 4F M/B Resource (LPC Controller)
50 - 53 System Timer
60 EC
61 LPC
62 EC
63 LPC
64 EC
65 LPC
66 EC
67 LPC
70 - 77 System CMOS/Real Time Clock
81 - 91 DMA Controller Channel 2
92 LPC
A0 - A1 Programmable Interrupt Controller (Slave Controller)
A4 - A5 Programmable Interrupt Controller (Aliases)
A8 - A9 Programmable Interrupt Controller (Aliases)
AC - AD Programmable Interrupt Controller (Aliases)
B0 - B1 Programmable Interrupt Controller (Aliases)
B2 - B3 LPC
B4 - B5 Programmable Interrupt Controller (Aliases)
B8 - B9 Programmable Interrupt Controller (Aliases)
108 Chapter 6 Specifications