Chapter 5 Input/Output Interfaces
Compaq Deskpro 4000 and 6000 Personal Computers
featuring the Pentium II Processor
First Edition – October 1997
5-36
5.7.1 NIC CONFIGURATION/CONTROL
The NIC is a PCI device and configured though PCI configuration space registers using PCI
protocol described in chapter 4. Control of the NIC is through I/O registers mapped in the 300h-
30Fh range.
5.7.2 NIC CONNECTORS
The network interface provides two choices of connection to a system as shown in the following
figures.
Figure 5–10
. Ethernet AUI Connector (DB-15, viewed from rear)
Figure 5–11
. Ethernet RJ-45 Connector
12438765
Pin Description
1 Transmit
2 Receive
3 Receive Low
6 Transmit Low
1
15
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