Intel D850EMV2 Product Specification - Page 35

CNR Optional - lan driver

Page 35 highlights

Product Description 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 Refer to Section 1.3, page 18 1.12 CNR (Optional) The CNR connector provides an interface that supports the audio, modem, USB, and LAN interfaces of the Intel 850E chipset. Figure 9 shows the signal interface between the riser and the ICH2. CNR Connector Intel 82801BA I/O Controller Hub (ICH2) AC '97 Interface LAN Interface SMBus USB Communication and Networking Riser (Up to two AC '97 codecs and one LAN device) OM12277 Figure 9. ICH2 and CNR Signal Interface ✏ NOTE The USB bus is routed from the NEC USB 2.0 controller if the USB 2.0 option is supported. The CNR supports the following interfaces: • AC '97 interface: supports audio and/or modem functions on the CNR board. The desktop boards D850EMD2/D850EMV2 support six-channel audio using a CNR board. • LAN interface: eight-pin interface for use with 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. ✏ NOTE If you install a CNR card with an audio codec that cannot support a multichannel audio upgrade, the desktop boards D850EMD2/D850EMV2's integrated audio codec will be disabled. This only applies to desktop boards D850EMD2/D850EMV2 that have both the onboard audio subsystem and a CNR. 35

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Product Description
35
1.11.3
LAN Subsystem Software
LAN software and drivers are available from Intel
s World Wide Web site.
For information about
Refer to
Obtaining LAN software and drivers
Section 1.3, page 18
1.12 CNR (Optional)
The CNR connector provides an interface that supports the audio, modem, USB, and LAN
interfaces of the Intel 850E chipset.
Figure 9 shows the signal interface between the riser and the
ICH2.
Intel 82801BA
I/O Controller Hub
(ICH2)
Communication and
Networking Riser
(Up to two AC
97 codecs
and one LAN device)
CNR Connector
AC
97 Interface
LAN Interface
SMBus
OM12277
USB
Figure 9.
ICH2 and CNR Signal Interface
NOTE
The USB bus is routed from the NEC USB 2.0 controller if the USB 2.0 option is supported.
The CNR supports the following interfaces:
AC
97 interface:
supports audio and/or modem functions on the CNR board.
The desktop
boards D850EMD2/D850EMV2 support six-channel audio using a CNR board.
LAN interface:
eight-pin interface for use with 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.
NOTE
If you install a CNR card with an audio codec that cannot support a multichannel audio upgrade,
the desktop boards D850EMD2/D850EMV2’s integrated audio codec will be disabled.
This only
applies to desktop boards D850EMD2/D850EMV2 that have both the onboard audio subsystem
and a CNR.