System BIOS and Resources
System Resources
Chapter 4
66
address space is in the free area of the space reserved for accessory
boards (100h to 3FFh).
Default Values for
I/O Address Ports
Function
0000 - 0CF7
DMA controller 1
0020 - 0021
Master interrupt controller (8259)
002E - 002F
Super I/O
0040 - 0043
Timer 1
0060, 0064
Keyboard controller (reset, slow A20)
0061
Port B (speaker, NMI status, and control)
0070
Bit 7: NMI mask register
0070 - 0071
RTC and CMOS
0080
Manufacturing port (POST card)
0081 - 0083, 008F
DMA low page register
0092
PS/2 reset and Fast A20
00A0 - 00A1
Slave interrupt controller
00C0 - 00DF
DMA controller 2
00F0 - 00FF
Coprocessor error
0170 - 0177
Free (IDE secondary channel)
01F0 - 01F7
IDE primary channel
0278 - 027F
LPT 2
02E8 - 02EF
Serial port 4 (COM4)
02F8 - 02FF
Serial port 2 (COM2)
0372 - 0377
Free (IDE secondary channel, secondary
floppy disk drive)
0378 - 037F
LPT1
03B0 - 03DF
VGA
03E8 - 03EF
COM3
03F0 - 03F5
Floppy disk drive controller
03F6
IDE primary channel
03F7
Floppy disk drive controller
03F8 - 03FF
COM1
04D0 - 04D1
Interrupt edge/level control
0778 - 077F
LPT1 ECP
0CF8 - 0CFF
PCI configuration space
This manual downloaded from http://www.manualowl.com
Summary of Contents for Workstation x4000
Page 11: ...Chapter 1 11 1 System Overview This manual downloaded from http www manualowl com ...
Page 25: ...Chapter 2 25 2 System Board This manual downloaded from http www manualowl com ...
Page 43: ...Chapter 4 43 4 System BIOS and Resources This manual downloaded from http www manualowl com ...
Page 81: ...Chapter 6 81 6 Power Specifications This manual downloaded from http www manualowl com ...
Page 93: ...Chapter 7 93 7 Connector Pin Outs This manual downloaded from http www manualowl com ...
Page 121: ...Chapter 8 121 8 Mechanical Specifications This manual downloaded from http www manualowl com ...
Page 125: ...Chapter 9 125 9 Hardware Components This manual downloaded from http www manualowl com ...
Page 203: ...Chapter 11 203 11 Troubleshooting This manual downloaded from http www manualowl com ...
Page 231: ...Chapter 12 231 12 Contacting Support This manual downloaded from http www manualowl com ...