Cnr (Optional); Ich2 And Cnr Signal Interface - Intel D810E2CA3 Specification

Intel Desktop Board D810E2CA3 Technical Product Specification

1.11 CNR (Optional)

The CNR connector supports the audio, modem, USB, and LAN interfaces of the Intel 810E2
chipset. Figure 5 shows the signal interface between the riser and the ICH2.
The interfaces supported by the CNR connector include (but are not limited to) 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.
To learn more about the CNR, refer to the CNR specification.
For information about
Obtaining the CNR specification
CAUTION
Do not install a LAN CNR card if the D810E2CA3 board already has an onboard LAN subsystem.
Doing so could prevent the board from connecting to the LAN.
32
AC '97 Interface
LAN Interfaces
Intel 82801BA
I/O Controller Hub SMBus
(ICH2)
USB
Figure 5. ICH2 and CNR Signal Interface
Communication and
Networking Riser
(Up to two AC '97 codecs
and one LAN device)
OM11531
Refer to
Section 1.3, page 16