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SOM-6765 User Manual
38
C.1
System I/O Port
Table C.1: System I/O Ports
Addr.range(Hex)
Device
0000 - 001F
Direct memory access controller
0000 - 0CF7
PCI bus
0010 - 001F
Motherboard resources
0020 - 0021
Programmable interrupt controller
0022 - 003F
Motherboard resources
0024 - 0025
Programmable interrupt controller
0028 - 0029
Programmable interrupt controller
002C - 002D
Programmable interrupt controller
002E - 002F
Motherboard resources
0030 - 0031
Programmable interrupt controller
0034 - 0035
Programmable interrupt controller
0038 - 0039
Programmable interrupt controller
003C - 003D
Programmable interrupt controller
0040 - 0043
System timer
0044 - 005F
Motherboard resources
004E - 004F
Motherboard resources
0050 - 0053
System timer
0060 - 0060
Standard PS/2 Keyboard
0061 - 0061
Motherboard resources
0062 - 0062
Microsoft ACPI-Compliant Embedded Controller
0062 - 0063
Motherboard resources
0063 - 0063
Motherboard resources
0064 - 0064
Standard PS/2 Keyboard Keyboard
0065 - 0065
Motherboard resources
0065 - 006F
Motherboard resources
0066 - 0066
Microsoft ACPI-Compliant Embedded Controller
0067 - 0067
Motherboard resources
0070 - 0070
Motherboard resources
0070 - 0077
System CMOS/real time clock
0072 - 007F
Motherboard resources
0080 - 0080
Motherboard resources
0080 - 0080
Motherboard resources
0081 - 0091
Direct memory access controller
0084 - 0086
Motherboard resources
0088 - 0088
Motherboard resources
008C - 008E
Motherboard resources
0090 - 009F
Motherboard resources
0092 - 0092
Motherboard resources
0093 - 009F
Direct memory access controller
00A0 - 00A1
Programmable interrupt controller
00A2 - 00BF
Motherboard resources
00A4 - 00A5
Programmable interrupt controller
00A8 - 00A9
Programmable interrupt controller