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ECM-3711 Series
20 ECM-3711 Series User’s Manual
A hardware monitor engine is built in to monitor system health. An enhanced 8 bit ADC is
built inside. This is exploited to simultaneously monitor 8 analog voltages or thermal inputs.
The thermal inputs can be defined independently as thermistor or PentiumTM II thermal
diode. Besides the ADC, the Hardware Monitor subsystem is also equipped with one
chassis-open detection and 5 VID inputs for PentiumTM II Vcore identification.
All logical devices can be individually enabled or disabled via software configuration
registers.
1.6.6 Ethernet
1.6.6.1 Realtek RTL8111B Ethernet Controller
The Realtek RTL8111 Gigabit Ethernet controller combines a triple-speed IEEE 802.3
compliant Media Access Controller (MAC) with a triple-speed Ethernet transceiver, PCI
Express bus controller, and embedded memory. With state-of-the-art DSP technology and
mixed-mode signal technology, it offers high-speed transmission over CAT 5 UTP cable or
CAT 3 UTP (10Mbps only) cable. Functions such as Crossover Detection &
Auto-Correction, polarity correction, adaptive equalization, cross-talk cancellation, echo
cancellation, timing recovery, and error correction are implemented to provide robust
transmission and reception capability at high speeds.
The device supports the PCI Express 1.0a bus interface for host communications with
power management and is compliant with the IEEE 802.3u specification for 10/100Mbps
Ethernet and the IEEE 802.3ab specification for 1000Mbps Ethernet. It also supports an
auxiliary power auto-detect function, and will auto-configure related bits of the PCI power
management registers in PCI configuration space.
Advanced Configuration Power management Interface (ACPI)--power management for
modern operating systems that are capable of Operating System-directed Power
Management (OSPM)—is also supported to achieve the most efficient power management
possible. PCI Message Signaled Interrupt (MSI) is also supported.
In addition to the ACPI feature, remote wake-up (including AMD Magic Packet™,
Re-LinkOk, and Microsoft® Wake-up frame) is supported in both ACPI and APM
(Advanced Power Management) environments. To support WOL from a deep power down
state (e.g., D3cold, i.e. main power is off and only auxiliary exists), the auxiliary power
source must be able to provide the needed power for the RTL8111.
The RTL8111 is fully compliant with Microsoft® NDIS5 (IP, TCP, UDP) Checksum and
Segmentation Task-offload features, and supports IEEE 802 IP Layer 2 priority encoding
and 802.1Q Virtual bridged Local Area Network (VLAN). The above features contribute to
lowering CPU utilization, especially benefiting performance when in operation on a network
server.