Intel 82801Dbm Ich4-M - Lan Connect Interface Guidelines; Bus Topologies; Figure 117. Intel 82801Dbm Ich4-M/Platform Lan Connect Section; Table 58. Lan Design Guide Section Reference - Intel 855PM Design Manual

R

Figure 117. Intel 82801DBM ICH4-M/Platform LAN Connect Section

Intel
ICH4-M
Refer to the PCI
Specification

Table 58. LAN Design Guide Section Reference

Intel ICH4-M – LAN Connect Interface (LCI)
®
Intel ® 82562ET / Intel 82562EM
Intel ® 82551QM / Intel 82540EP
9.9.2. Intel 82801DBM ICH4-M – LAN Connect Interface Guidelines
This section contains guidelines on how to implement a platform LAN Connect device on a system
motherboard. It should not be treated as a specification and the system designer must ensure through
simulations or other techniques that the system meets the specified timings. Special care must be given
to matching the LAN_CLK traces to those of the other signals, as shown below. The following are
guidelines for the Intel 82801DBM ICH4-M to LAN Connect Interface. The following signal lines are
used on this interface:
LAN_CLK
LAN_RSTSYNC
LAN_RXD[2:0]
LAN_TXD[2:0]
This interface supports Intel 82562ET and Intel 82562EM components. Signal lines LAN_CLK,
LAN_RSTSYNC, LAN_RXD[0], and LAN_TXD[0] are shared by all components.
9.9.2.1.

Bus Topologies

The Platform LAN Connect Interface can be configured in several topologies:
Direct point-to-point connection between the ICH4-M and the LAN component
LOM Implementation
®
Intel 855PM Chipset Platform Design Guide
A
82562EM/
82562ET
82551QM
PCI
82540EP
Layout Section
B
Magnetic
Module
Refer to the selected Intel
C
LAN component
Figure 117 Reference
A Reference Section 9.9.2
B Reference Section 9.9.3
C Reference Section 9.9.5
I/O Subsystem
Connector
Design Guide Section
213