KSZ8463ML Datasheet, PDF (180/259 Pages) Micrel Semiconductor – IEEE 1588 Precision Time Protocol-Enabled, Three-Port, 10/100-Managed Switch with MII or RMII

Micrel, Inc.
KSZ8463ML/RL/FML/FRL
Port 1 Auto-Negotiation Link Partner Received Next Page Register (0x0DE – 0x0DF): P1ALPRNP
This register contains the port 1 auto-negotiation link partner received next page related bits.
Bit
15
14
13
12
11
10 − 0
Default
0
0
0
0
0
0x000
R/W Description
Next Page
Next Page (NP) is used by the Next Page function to indicate whether or not this is the last Next Page
RO ^{to be transmitted. NP shall be set as follows:}
1 = Additional Next Page(s) will follow.
0 = Last page.
Acknowledge
Acknowledge (Ack) is used by the auto-negotiation function to indicate that a device has successfully
RO ^{received its Link Partner’s Link Codeword. The Acknowledge bit is encoded in bit 14 regardless of the}
value of the Selector Field or Link Codeword encoding. If no Next Page information is to be sent, this
bit shall be set to logic one in the Link Codeword after the reception of at least three consecutive and
consistent FLP Bursts (ignoring the Acknowledge bit value).
Message Page
Message Page (MP) is used by the Next Page function to differentiate a Message Page from an
RO ^{Unformatted Page. MP shall be set as follows:}
1 = Message Page.
0 = Unformatted Page.
Acknowledge 2
Acknowledge 2 (Ack2) is used by the Next Page function to indicate that a device has the ability to
RO ^{comply with the message. Ack2 shall be set as follows:}
1 = Able to comply with message.
0 = Unable to comply with message.
Toggle
Toggle (T) is used by the arbitration function to ensure synchronization with the link partner during
Next Page exchange. This bit shall always take the opposite value of the Toggle bit in the previously
exchanged Link Codeword. The initial value of the Toggle bit in the first Next Page transmitted is the
RO _{inverse of bit [11] in the base Link Codeword and, therefore, may assume a value of logic one or zero.}
The Toggle bit shall be set as follows:
1 = Previous value of the transmitted Link Codeword equal to logic zero.
0 = Previous value of the transmitted Link Codeword equal to logic one.
Message and Unformatted Code Field
RO
Message/Unformatted code field bit[10:0]
June 11, 2014
180
Revision 1.0