RTL8100BL datasheet(6/66 Pages) REALTEK

Part #	RTL8100BL

Description	SINGLE-CHIP 10/100MBPS ETHERNET CONTROLLER WITH POWER MANAGEMENT

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Manufacturer	REALTEK [Realtek Semiconductor Corp.]

Direct Link	https://www.realtek.com/en/

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RTL8100B(L)

Datasheet

Single-Chip 10/100 Ethernet Controller w/Power Management

1

Track ID: JATR-1076-21 Rev. 1.5

1.

General Description

The Realtek RTL8100B(L) 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-T specifications and IEEE 802.3x Full Duplex Flow Control. It also supports 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 RTL8100B(L) also supports shared Boot ROM pins & clock run

pin.

In addition to the ACPI feature, the RTL8100B(L) also supports remote wake-up (including AMD Magic

Packet, LinkChg, and Microsoft® wake-up frame) in both ACPI and APM environments. The

RTL8100B(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 RTL8100B(L) is ready and is waiting for the

Magic Packet or Link Change to wake the system up. Also, the LWAKE pin provides 4 different output

signals including active high, active low, positive pulse, and negative pulse. The versatility of the

RTL8100B(L) LWAKE pin provides motherboards with Wake-On-LAN (WOL) functionality.

The RTL8100B(L) also supports Analog Auto-Power-down, that is, the analog part of the RTL8100B(L)

can be shut down temporarily according to user requirement or when the RTL8100B(L) is in a power down

state with the wakeup function disabled. In addition, when the analog part is shut down and the IsolateB pin

is low (i.e. the main power is off), then both the analog and digital parts stop functioning and the power

consumption of the RTL8100B(L) will be negligible. The RTL8100B(L) also supports an auxiliary power

auto-detect function, and will auto-configure related bits of their own PCI power management registers in

PCI configuration space.

PCI Vital Product Data (VPD) is also supported to provide the information that uniquely identifies

hardware (Ex., the OEM brand name of RTL8100B(L) LAN card). The information may consist of part

number, serial number, and other detailed information.

To provide cost down support, the RTL8100B(L) is capable of using a 25MHz crystal or OSC as its internal

clock source.

The RTL8100B(L) 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

RTL8100B(L) is also capable of receiving packets with InterFrameGap no less than 40 Bit-Time. The

RTL8100B(L) is highly integrated and requires no “glue” logic or external memory.

The RTL8100B(L) includes a PCI and Expansion Memory Share Interface (Realtek’s patent pending) for a

boot ROM and can be used in diskless workstations, providing maximum network security and ease of

management.

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