rtl8100l Realtek Semiconductor Corporation, rtl8100l Datasheet - Page 43

• Manufacturer Part Number: rtl8100l
• Description: Fast Ethernet Controller
• Manufacturer: Realtek Semiconductor Corporation

The RTL8100B(L) also supports the LAN WAKE-UP function. The LWAKE pin is used to notify the motherboard to execute
the wake-up process whenever the RTL8100B(L) receives a wakeup event, such as Magic Packet.
The LWAKE signal is asserted according the following setting:
7.5 VPD (Vital Product Data)
Bit 31 of the VPD is used to issue VPD read/write commands and is also a flag used to indicate whether the transfer of data
between the VPD data register and the 93C46 is completed or not.
1. Write VPD register: (write data to 93C46)
2. Read VPD register: (read data from 93C46)
2001-11-9
Write the flag bit to a one at the same time the VPD address is written. When the flag bit is set to zero by the RTL8100B(L),
the VPD data (all 4 bytes) has been transferred from the VPD data register to the 93C46.
Write the flag bit to a zero at the same time the VPD address is written. When the flag bit is set to one by the RTL8100B(L),
the VPD data (all 4 bytes) has been transferred from 93C46 to the VPD data register.
LWPME bit (bit4, CONFIG4):
Bit1 of DELAY byte(offset 1Fh, EEPROM):
0: LWAKE signal is disabled.
1: LWAKE signal is enabled
0: The LWAKE is asserted whenever there is wakeup event occurs.
1: The LWAKE can only be asserted when the PMEB is asserted and the ISOLATEB is low.
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RTL8100B(L)
Rev.1.41