RTL8208B-LF/RTL8208BF-LF
Datasheet
Next Page – Bit 15 returns a value of ‘1’ when the Link Partner implements the Next Page function and
has Next Page information that it wants to transmit. However, since the RTL8208B(F)-LF does not
implement the Next Page function, it ignores the Next Page bit, except to copy it to this register.
Acknowledge – Bit 14 is used by auto negotiation to indicate that a device has successfully received its
Link Partner’s Link Code Word.
Remote Fault – Bit 13 returns a value of ‘1’ when the Link Partner signals that a fault has occurred.
Reserved – Not defined by the IEEE 802.3 standard.
Asymmetric Pause – Indicates that the Link Partner asymmetric pause bit is set.
Pause – Indicates that the Link Partner pause bit is set.
100Base-T4 – Though the RTL8208B(F)-LF does not support the T4 function, this bit reflects the T4
ability of the Link Partner.
100Base-TX-FD – This bit indicates that the Link Partner can support 100Base-TX full duplex mode.
This bit is cleared any time auto negotiation is restarted or the RTL8208B(F)-LF is reset.
100Base-TX – This bit indicates that the Link Partner can support 100Base-TX half duplex mode. This
bit is cleared any time auto negotiation is restarted or the RTL8208B(F)-LF is reset.
10Base-T-FD – This bit indicates that the Link Partner can support 10Base-T full duplex mode. This bit
is cleared any time auto negotiation is restarted or the RTL8208B(F)-LF is reset.
10Base-T – This bit indicates that the Link Partner can support 10Base-T half duplex mode. This bit is
cleared any time auto negotiation is restarted or the RTL8208B(F)-LF is reset.
Selector Field – Bits 4:0 reflect the value of the Link Partner’s selector field. These bits are cleared each
time auto negotiation is restarted or the chip is reset, and generally reflects the value 0001, indicating that
the Link Partner is an IEEE 802.3 device.
Single-Chip Octal 10/100-TX/FX PHY Transceiver
22
Track ID: JATR-1076-21 Rev. 1.3
REALTEK [ Realtek Semiconductor Corp. ]
