Ethernet - BCM Mini-ITX MX852GM-C6 Series User Manual

User's Manual
1.6.11

Ethernet

1.6.11.1 Realtek RTL8100C Ethernet Controller
The Realtek RTL8100C(L) is a highly integrated, cost-effective single-chip Fast Ethernet
controller that provides 32-bit performance, PCI bus master capability, and full compliance
with IEEE 802.3u 100Base-T and Power Interface (ACPI), PCI power management for
modern operating systems that are cpable of Operating System-Directed Power
Management (OSPM) to achieve that most efficient power management possible. The
RTL8100C(L) does not support CardBus mode (the RTL8139C does).
In addition to the ACPI feature, the RTL8100C(L) also supports remote wake-up (including
AMD magic Packet, LinkChg, and Microsoft® wake-up frame) in both ACPI and APM
(Advanced Power Management) environments. The RTL8100C(L) is capable of performing
an internal reset through the application of auxiliary power. When auxiliary power is applied
and the main power remains off, the RTL8100C(L) is ready and waiting for a Magic Packet
or Link Change to wake the system up. Also, the LWAKE pin provides 4 output signals
(active high, active low, positive pulse, and negative pulse). The versatility of the
RTL8100C(L) LWAKE pin provides motherboards, with Wake-On-LAN (WOL) functionality.
The RTL8100C(L) also supports Analog Auto-Power-down. The analog part of the
RTL8100C(L) can be shut down temporarily according to user requirements, or when the
RTL8100C(L) is in a power down state with the wakeup function disabled. When the analog
part is shut down and the IsolateB pin is low (i.e. the main power is off), both the analog and
digital parts stop functioning and the power consumption of the RTL8100C(L) is negligible.
The RTL8100C(L) also supports an auxiliary power auto-detect function, and will
auto-configure related bits of its PCI power management registers in PCI configuration
space.
PCI Vital Product Data (VPD) is also supported to provide hardware identifier information.
The information may consist of part number, serial number, OEM brand name, and other
detailed information.
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