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ECM-CX700
22 ECM-CX700 Series User’s Manual
1.6.5 Ethernet-Realtek RTL8101L Ethernet Controller
The Ethernet interface is based on an Realtek RTL8101L Ethernet controller which
supports both 100Mbit as well as l0Mbit Base-T interface.
The Ethernet controller is attached to the PCI bus and use PCI bus mastering for data
transfer. The CPU is thereby not loaded during the actual data transfer.
The Realtek RTL8101L is a highly integrated and cost-effective single-chip Fast Ethernet
controller that provides 32-bit performance, PCI bus master capability, and full compliance
with IEEE 802.3u 100Base-TX specifications and IEEE 802.3x Full Duplex Flow Control. It
also supports the Advanced Configuration Power management Interface (ACPI), PCI
power management for modern operating systems that are capable of Operating System
Directed Power Management (OSPM) to achieve the most efficient power management
possible. The RTL8101L no longer supports CardBus mode as RTL8139C does. In addition
to the ACPI feature, the RTL8101L also supports remote wake-up (including AMD Magic
Packet, LinkChg, and Microsoft® wake-up frame) in both ACPI and APM environments.
The RTL8101L is capable of performing an internal reset through the application of
auxiliary power.
To provide cost down support, the RTL8101L is capable of using a 25MHz crystal or OSC
as its internal clock source. The RTL8101L keeps network maintenance costs low and
eliminates usage barriers. It is the easiest way to upgrade a network from 10 to 100Mbps. It
also supports full-duplex operation, making 200Mbps bandwidth possible at no additional
cost. To improve compatibility with other brands’ products, the RTL8101L is also capable of
receiving packets with InterFrameGap no less than 40 Bit-Time. The RTL8101L is highly
integrated and requires no “glue” logic or external memory.
The RTL8101L includes a PCI and Expansion Memory Share Interface (Realtek patent) for
a boot ROM and can be used in diskless workstations, providing maximum network security
and ease of management.