Note:
The address locations of the PCI devices, such as SCSI or Ethernet, are not
described in the following tables, because the system BIOS automatically
configures (PnP, Plug and Play) all PCI devices.
Standard Register Set
The standard register set is equal to all standard PC/AT systems. The table
below provides an overview of the address ranges occupied by these registers.
Table 19: Standard register set
I/O Address Range (Hex)
Function
0x00h – 0x0Fh
DMA Controller 1
0x20h – 0x21h
Interrupt Controller 1
0x40h – 0x43h
Counter / Timer
0x60h Keyboard
Controller
0x61h
NMI Status and Control
0x64h Keyboard
Controller
0x70h – 0x71h
RTC, NMI Mask
0x80h – 0x8Fh
DMA Page register
0xA0h – 0xA1h
Interrupt Controller 2
0xB2h – 0xB3h
Power Management
0xC0h – 0xDEh
DMA Controller 2
0xF0h – 0xF1h
Coprocessor
0x100h – 0x107h
Reserved
b
0x170h – 0x177h
Secondary IDE
0x1F0h – 0x1F7h
Primary IDE
0x278h – 0x27Fh
LPT
0x2E8h – 0x2Efh
COM port
a
0x2F8h - 0x2FFh
COM port
a
0x3E8h – 0x3Efh
COM port
a
0x3F8h – 0x3FFh
COM1 port
a
a.
Via setup four address ranges can be defined for four the serial interfaces
and for the parallel interfaces.
b.
Used for onboard programmable options. They are not intended to be used
from normal users. For more explanation please check the ‘Board Specific
Hardware Programmer’s Manual’.
Plug and Play Devices
See ´Board Specific Hardware Programmer’s Manual´.
GE Intelligent Platforms – VR11, VP11 Hardware Reference Manual, Second Edition
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