About Pci Bus - D-Link DFE-530TX User Manual

DFE-530TX EthernetFast Ethernet Adapter for PC/ Bus
and the two devices select the best communication
parameters supported by both devices.
If the hub does not have auto-negotiation functionality,
then its monotone (single capability) message will be
recognized by the DFE-530TX's
and the DFE-530TX
capabilities which matches that of the hub.
When the preparatory procedure of auto-negotiation is
completed, then the line is ready and will provide a data
channel which is optimal for the two devices. The line will
remain ready without further auto-negotiation action until
the linkage is broken. Auto-negotiation then reoccurs at
any time that the linkage is restored, again making the line
ready for optimal data communications.

About PCI Bus

Your DFE-530TX Adapter delivers outstanding perfor-
mance by fully exploiting the advanced features of your
computer's PCI bus. DFE-530TX Adapters utilize the Bus
Master Mode of the PCI bus, allowing direct transfers of
Ethernet packet content between computer memory and
the adapter's controller, thus minimizing network demand
on the CPU. The adapter's controller function provides the
additional benefit of reduced command processing
overhead.
The working relationship between a DFE-530TX adapter
and main memory working in Bus Master mode is powered
by the Bridge/Memory Controller of the PCI bus. This
reduces the CPU role in network operations, thus freeing
the CPU to service other tasks, with resulting improvement
A
auto-negotiation facility,
will simply switch to the one of its own
installation