RTL8111 Ver la hoja de datos (PDF) - Realtek Semiconductor

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RTL8111

INTEGRATED GIGABIT ETHERNET CONTROLLER FOR PCI EXPRESS™ APPLICATIONS

Realtek Semiconductor 

RTL8111

Datasheet

5. Pin Descriptions

The signal type codes below are used in the following tables:

I: Input

O: Output

T/S: Tri-State bi-directional input/output pin

S/T/S: Sustained Tri-State

O/D: Open Drain

5.1. Power Management/Isolation

Symbol

LANWAKEB

ISOLATEB

Type

O/D

I

Table 1. Power Management/Isolation

Pin No Description

36

Power Management Event: Open drain, active low.

Used to reactivate the PCI Express slot’s main power rails and reference clocks.

Isolate Pin: Active low.

71

Used to isolate the RTL8111 from the PCI Express bus. The RTL8111 will not drive

its PCI Express outputs (excluding LANWAKEB) and will not sample its PCI

Express input as long as the Isolate pin is asserted.

5.2. PCI Express Interface

Symbol

REFCLK_P

REFCLK_N

HSOP

HSON

HSIP

HSIN

PERSTB

Type

I

I

O

O

I

I

I

Table 2. PCI Express Interface

Pin No Description

50

PCI Express Differential Reference Clock Source: 100MHz ± 300ppm.

51

54

PCI Express Transmit Differential Pair.

55

47

PCI Express Receive Differential Pair.

48

PCI Express Reset Signal: Active low.

37

When the PERSTB is asserted at power-on state, the RTL8111 returns to a

pre-defined reset state and is ready for initialization and configuration after

the de-assertion of the PERSTB.

5.3. EEPROM

Symbol

EESK

Type

O

EEDI/AUX

O/I

EEDO

I

EECS

O

Pin No

75

74

72

71

Table 3. EEPROM

Description

Serial data clock.

EEDI: Output to serial data input pin of EEPROM.

AUX: Input pin to detect if Aux. Power exists or not on initial power-on.

This pin should be connected to EEPROM. To support wakeup from ACPI

D3cold or APM power-down, this pin must be pulled high to Aux. Power

via a resistor. If this pin is not pulled high to Aux. Power, the RTL8111

assumes that no Aux. Power exists.

Input from serial data output pin of EEPROM.

EECS: EEPROM chip select.

Integrated Gigabit Ethernet Controller for PCI Express 4

Track ID: JATR-1076-21 Rev. 1.2

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