Lan Subsystem Software; Cnr (Optional); Ich2 And Cnr Signal Interface - Intel D845HV Technical Product Specification

1.11.3 LAN Subsystem Software

LAN software and drivers are available from Intel's World Wide Web site.
For information about
Obtaining LAN software and drivers

1.12 CNR (Optional)

The CNR connector provides an interface that supports the audio, modem, USB, and LAN
interfaces of the Intel 845 chipset. Figure 8 shows the signal interface between the riser and
the ICH2.
The interfaces supported by the CNR include the following:
AC '97 interface: supports audio and/or modem functions on the CNR board.
LAN interfaces: an eight-pin interface for use with Platform LAN Connection (PLC) based
devices.
SMBus interface: provides Plug-and-Play functionality for the CNR board.
USB interface: provides a USB interface for the CNR board.
The CNR connector includes power signals required for power management and for CNR board
operation. To learn more about the CNR, refer to the CNR specification.
The onboard two-channel audio subsystem can be upgraded to four- or six-channel audio using a
CNR audio upgrade card in a slave configuration. CNR audio upgrade cards are available in
multiple configurations from several different vendors supporting analog or S/P-DIF digital
connections. A list of vendors supplying CNR audio upgrade cards compatible with the
D845HV/D845WN boards' onboard audio subsystem, as well as an installation guide for these
cards with SoundMAX with SPX are available on the following web site:
http://developer.intel.com/technology/cnr/
AC '97 Interface
Intel 82801BA
LAN Interface
I/O Controller Hub
SMBus
(ICH2)
Figure 8. ICH2 and CNR Signal Interface
Communication and
Networking Riser
(Up to two AC '97 codecs
and one LAN device)
USB
Product Description
Refer to
Section 1.3, page 17
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