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RTL8211E-VL-CG Datasheet(PDF) 35 Page - Realtek Semiconductor Corp.

Part No. RTL8211E-VL-CG
Description  INTEGRATED 10/100/1000M ETHERNET TRANSCEIVER
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Maker  REALTEK [Realtek Semiconductor Corp.]
Homepage  https://www.realtek.com/en/
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RTL8211E-VL-CG Datasheet(HTML) 35 Page - Realtek Semiconductor Corp.

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RTL8211E/RTL8211EG
Datasheet
Integrated 10/100/1000M Ethernet Transceiver
27
Track ID: JATR-2265-11 Rev. 1.4
7.13. LED Configuration
The RTL8211E/RTL8211EG supports three LED pins, suitable for multiple types of applications that can
directly drive the LEDs. The output of these pins is determined by setting the corresponding bits in
extension Page44 Register 28 and Register 26. The functionality of the RTL8211E/RTL8211EG LEDs is
shown in Table 17.
Table 17. LED Default Definitions
Pin
Description
LED0
Blinking=Transmitting or Receiving
LED1
Low=Link Up (Any speed)
High=Link Down (Any speed)
LED2
Low=Link Up (Any speed)
High=Link Down (Any speed)
Blinking=Transmitting or Receiving
Note: When in EEE mode, blinking duration is 400ms ON and 2 seconds OFF.
The RTL8211E/RTL8211EG LED pins can be customized from extension Page 44 Register 28 and
Register 26. To change the register page, see note (below) and Table 18. There are 16 configuration types
(see Table 19, page 28).
Note: To switch to extension Page44, set Register 31 Data=0x0007 (set to extension page). Set Register 30
Data=0x002c (extension Page44). After LED setting, switch to PHY`s Page0 (Register 31 Data=0000).
Table 18. LED Register Table
LINK Speed
Active (Tx/Rx)
10Mbps
100Mbps
1000Mbps
LED0
Reg28 Bit0
Reg28 Bit1
Reg28 Bit2
Reg26 Bit4
LED1
Reg28 Bit4
Reg28 Bit5
Reg28 Bit6
Reg26 Bit5
LED2
Reg28 Bit8
Reg28 Bit9
Reg28 Bit10
Reg26 Bit6


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