System BIOS and Resources
System Resources
Chapter 4
67
DMA Channel Controllers
The system permits only I/O-to-memory and memory-to-I/O transfers.
The hardware configuration doesn’t allow I/O-to-I/O or
memory-to-memory transfers.
The system controller supports seven DMA channels, each with a page
register that extends the channel’s addressing range to 16MB.
The following table shows how the system allocates DMA channels.
C000 -
Power management I/O space and ACPI
registers
C100 - C10F
SMBus I/O space
DMA controller
Channel
Function
DMA 0
Free
DMA 1
Free if not used for parallel port in Setup
DMA 2
Floppy disk drive controller
DMA 3
Free if not used for parallel port in Setup
DMA 4
Used to cascade DMA channels 0-3
DMA 5
Free
DMA 6
Free
DMA 7
Free
Default Values for
I/O Address Ports
Function
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 ...