Hp I/O Port Map (I/O Addresses Used By The System) - HP XM600 - Kayak - 128 MB RAM Technical Reference Manual

HP I/O Port Map (I/O Addresses Used by the System
Peripheral devices, accessory devices and system controllers are accessed
via the system I/O space, which is not located in system memory space. The
64 KB of addressable I/O space comprises 8-bit and 16-bit registers (called
I/O ports) located in the various system components. When installing an
accessory board, ensure that the I/O address space selected is in the free
area of the space reserved for accessory boards (100h to 3FFh).
Default Values for
I/O Address Ports
0000 - 000F
0020 - 0021
002E - 002F
0040 - 0043
0060, 0064
0061
0070
0070 - 0071
0080
0081 - 0083, 008F
0092
00A0 - 00A1
00C0 - 00DF
00F0 - 00FF
0170 - 0177
01F0 - 01F7
0278 - 027F
02E8 - 02EF
02F8 - 02FF
0372 - 0377
0378 - 037A
03B0 - 03DF
03E8 - 03EF
03F0 - 03F5
03F6
03F7
1.If configured.
Function
DMA controller 1
Master interrupt controller (8259)
Configuration registers
Timer 1
Keyboard controller (reset, slow A20)
Port B (speaker, NMI status and control)
Bit 7: NMI mask register
RTC and CMOS
Manufacturing port (POST card)
DMA low page register
PS/2 reset and Fast A20
Slave interrupt controller
DMA controller 2
Co-processor error
Free (IDE secondary channel)
IDE primary channel
LPT 2
Serial port 4 (COM4)
Serial port 2 (COM2)
Free (IDE secondary channel, secondary floppy disk drive)
LPT1
VGA
COM3
Floppy disk drive controller
IDE primary channel
Floppy disk drive controller
5 HP BIOS
BIOS Addresses
1
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