It provides higher bandwidth and improved protocols for data exchange between the host and the device. The device also features USB 2.0 technology. When the Ethernet network is in low link utilization, EEE allows systems on both sides of the link to save power. IEEE 802.3az operates with the IEEE 802.3 Media Access Control (MAC) Sublayer to support operation in Low Power Idle mode. The RTL8152B-VB supports IEEE 802.3az-2010, also known as Energy Efficient Ethernet (EEE). Required and optional behavior of an operating proxy includes generating reply packets, ignoring packets, and waking the host. It handles some network tasks on behalf of the host, allowing the host to remain in sleep mode for longer periods. The standard specifies maintenance of network connectivity and presence via proxies in order to extend the sleep duration of higher-powered hosts. The RTL8152B-VB supports the ECMA (European Computer Manufacturers Association) proxy for sleeping hosts standard. The RTL8152B-VB can offload ARP (IPv4) and NS (IPv6) protocols while in the D3 power saving state. It offloads some of the most common protocols to NIC hardware in order to prevent spurious wake-up and further reduce power consumption. The RTL8152B-VB supports Protocol offload. The above features contribute to lowering CPU utilization, especially benefiting performance when in operation on a network server. The RTL8152B-VB is fully compatible with Microsoft NDIS5, NDIS6 (IPv4, IPv6, TCP, UDP) Checksum features, and supports IEEE 802 IP Layer 2 priority encoding and IEEE 802.1Q Virtual bridged Local Area Network (VLAN). Note: The ‘RealWoW!’ service requires registration on first time use. This feature allows PCs to reduce power consumption by remaining in low power sleeping state until needed. The RTL8152B-VB supports ‘RealWoW!’ technology that enables remote wake-up of a sleeping PC through the Internet. WPI helps prevent unwanted/unauthorized wake-up of a sleeping computer. The RTL8152B-VB supports Microsoft Wake Packet Indication (WPI) to provide Wake-Up Frame information to the OS, e.g., PatternID, OriginalPacketSize, SavedPacketSize, SavedPacketOffset, etc. In addition to the ACPI feature, remote wake-up (including AMD Magic Packet and Microsoft Wake-Up Frame) is supported in both ACPI and APM (Advanced Power Management) environments. The RTL8152B-VB features embedded One-Time-Programmable (OTP) memory.Īdvanced 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. 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 capabilities. With state-of-the-art DSP technology and mixed-mode signal technology, the RTL8152B-VB offers high-speed transmission over CAT 5 UTP cable or CAT 3 UTP (10Mbps only) cable. A linear regulator (LDO) is incorporated for reduced BOM cost. The Realtek RTL8152B-VB-CG 10/100M Ethernet controller combines an IEEE 802.3u compatible Media Access Controller (MAC), USB bus controller, and embedded memory.
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