RTL8111E-VL-CG Просмотр технического описания (PDF) - Realtek Semiconductor

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RTL8111E-VL-CG

INTEGRATED GIGABIT ETHERNET CONTROLLER FOR PCI EXPRESS APPLICATIONS

Realtek Semiconductor 

RTL8111E

Datasheet

6.2.6. Customizable LED Configuration

The RTL8111E supports customizable LED operation modes via IO register offset 18h~19h. Table 11

describes the different LED actions.

Bit

15:12

11:8

7:4

3:0

Symbol

LEDCntl

LEDSEL3

LEDSEL1

LEDSEL0

Table 11.

RW

RW

RW

RW

RW

LED Select (IO Register Offset 18h~19h)

Description

LED Feature Control

LED Select for PINLED3

LED Select for PINLED1

LED Select for PINLED0

When implementing customized LEDs:

Configure IO register offset 18h~19h to support your own LED signals. For example, if the value in the

IO offset 0x18 is 0x0CA9h (0000110010101001b), the LED actions are:

• LED 0: On only in 10M mode, with blinking during TX/RX

• LED 1: On only in 100M mode, with blinking during TX/RX

• LED 3: On only in 1000M mode, with blinking during TX/RX

Table 12. Customized LEDs

Speed

LINK

ACT/Full

Link 10M

Link 100M

Link 1000M

LED 0

Bit 0

Bit 1

Bit 2

Bit 3

LED 1

Bit 4

Bit 5

Bit 6

Bit 7

LED 3

Feature Control

Bit 8

Bit 12

Bit 9

Bit 13

Bit 10

Bit 14

Bit 11

Bit 15

Note: There are two special modes:

LED OFF Mode: Set all bits to 0. All LED pin output become floating (power saving).

Fixed LED Mode: Set Option 1 LED table Mode: LED0=LED1=LED2=1 or 2 (see Table 13).

Bit31~Bit0 Value

1XXX 0001 0001 0001

1XXX 0010 0010 0010

Note: ‘X’ indicates ‘irrelevant’.

Table 13.

LED0

ACT

Transmit

Fixed LED Mode

LED1

LINK

LINK

LED2

Full Duplex + Collision

Receive

Integrated Gigabit Ethernet Controller for PCI Express

12

Track ID: JATR-2265-11 Rev. 1.1

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