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7–16 Maintenance and Service Guide
Specifications
I/O Address (hex) System Function (shipping configuration)
054 - 059 Unused
060 Keyboard controller
061 System speaker
062 MS ACPI-Compliant embedded controller
063 System board resources
064 Keyboard controller
065 System board resources
066 MS ACPI-Compliant embedded controller
067 System board resources
068 Unused
070 - 071 RTC/CMOS
072 - 073 RTC/CMOS
074 - 077 Motherboard resources
078 - 079 Unused
080 - 08F DMA page registers
090 - 09F System board resources
0A0 - 0A1 Interrupt controller no.2
0A2 - 0A3 Unused
0A4 - 0BD System board resources
0BE - 0BF Unused
0C0 - 0DF DMA controller 2
0E0 - 0EF Unused
0F0 - 0FF Numeric data processor
Table 7-12
System I/O Addresses
(Continued)