RTL8208B-LF/RTL8208BF-LF
Datasheet
6.7. Register6: Auto-Negotiation Expansion
Table 17. Register6: Auto-Negotiation Expansion
Reg. bit Name
6.[15:5] Reserved
Description
Type
RO
RO
Default
0
0
6.4
Parallel Detection
1: A fault has been detected via the Parallel Detection
function
Fault
0: No fault has been detected via the Parallel Detection
function
6.3
6.2
6.1
6.0
Link Partner Next
Page Able
Local Next Page
Able
1: Link Partner is Next Page able
RO
RO
0
0
0
0: Link Partner is not Next Page able
1: RTL8208B(F)-LF is Next Page able
0: RTL8208B(F)-LF is not Next Page able (permanently=0)
1: A New Page has been received
0: A New Page has not been received
If Auto-Negotiation is enabled, this bit means:
1: Link Partner is Auto-Negotiation able
0: Link Partner is not Auto-Negotiation able
In 100FX or auto-negotiation disabled, this bit is always 1.
Page Received
RO/LH
RO
Link Partner Auto-
Negotiation Able
0 (Auto-
Negotiation)
or
1 (100FX)
Reserved – Ignore the output of the RTL8208B(F)-LF when these bits are read.
Parallel Detection Fault – Bit 4 is a read-only bit that is latched high when a parallel detection fault
occurs in the auto negotiation state machine. For further details, consult the IEEE 802.3 standard. The bit
is reset to ‘0’ after the register is read, or when the chip is reset.
Link Partner Next Page Able – Bit 3 returns a ‘1’ when the Link Partner has Next Page capabilities. It
has the same value as bit 15 of the Link Partner Ability Register.
Local Next Page Able – The RTL8208B(F)-LF does not have Next Page capabilities, so it will always
return a ‘0’ when bit 2 is read.
Page Received – Bit 1 is latched high when a new link code word is received from the Link Partner,
checked, and acknowledged. This bit is cleared when the link is lost or the chip is reset.
Link Partner Auto-Negotiation Able – Bit 0 returns a ‘1’ once the Link Partner is known to have auto
negotiation capabilities. Before any auto negotiation information is exchanged, or if the Link Partner does
not comply with IEEE auto negotiation, the bit returns a value of ‘0’.
Single-Chip Octal 10/100-TX/FX PHY Transceiver
23
Track ID: JATR-1076-21 Rev. 1.3
REALTEK [ Realtek Semiconductor Corp. ]
