PCI MSI (Message Signaled Interrupt) and MSI-X are also supported. It supports an auxiliary power auto-detect function and will auto-configure related bits of the PCI power management registers in PCI configuration space.ДЄdvanced Configuration Power management Interface (ACPI)-power management for modern operating systems that are capable of Operating System-directed Power Management (OSPM)-is supported to achieve the most efficient power management possible.

The RTL8125BG/RTL8125BGS supports the PCI Express 2.1 bus interface for host communications with power management, and is compatible with the IEEEВ 802.3u specification for 10/100Mbps Ethernet, the IEEE 802.3ab specification for 1000Mbps Ethernet and the IEEE 802.3bz specification for 2500Mbps Ethernet. The RTL8125BGS provides a built-in switching regulator. Functions such as Crossover Detection and 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. With state-of-the-art DSP technology and mixed-mode signal technology, the RTL8125BG/RTL8125BGS offers high-speed transmission over CATВ 5e UTP cable or CATВ 3 UTP (10Mbps only) cable. The Realtek RTL8125BG/RTL8125BGS 10/100/1000M/2.5G Ethernet controller combines a four-speed IEEE 802.3 compatible Media Access Controller (MAC) with a four-speed Ethernet transceiver, PCI Express bus controller, and embedded memory.

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