KSZ8795CLX
TABLE 4-25: EEE PORT REGISTERS (CONTINUED)
Address Name Description
EEE Port Register 2
Port Auto-Negotiation Link Partner Next Page Receive Register
Mode
Default
Reg. 110 (0x6E) Bits[7:5] = 001 for EEE, Reg. 110 Bits[3:0] = 0xn, n = 1-4 for the Indirect Port Register,
Reg. 111 (0x6F) Bits[7:0] = Offset to access the Indirect Byte Register 0xA0.
Offset: 0x10 (Bits[15:8]), 0x11 (Bits[7:0])
Location: (001 EEE) -> {0xn, offset} -> 0xA0 holds the data.
15
Next Page Next Page (NP) is used by the Next Page function
to indicate whether or not this is the last Next Page
to be transmitted. NP shall be set as follows:
RO
0
1 = Additional Next Page(s) will follow.
0 = Last page.
14
Acknowledge Acknowledge (Ack) is used by the Auto-Negotiation
function to indicate that a device has successfully
received its Link Partner’s Link Codeword. The
Acknowledge Bit is encoded in Bit D14 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 Code-
word after the reception of at least three consecu-
tive and consistent FLP Bursts (ignoring the
Acknowledge bit value).
RO
0
13
12
11
Message
Page
Message Page (MP) is used by the Next Page
function to differentiate a Message Page from an
Unformatted
RO
RO
RO
0
0
0
Page. MP shall be set as follows:
1 = Message Page
0 = Unformatted Page
Acknowledge Acknowledge 2 (Ack2) is used by the Next Page
2
function to indicate that a device has the ability to
comply with the message. Ack2 shall be set as fol-
lows:
1 = Will comply with message.
0 = Cannot 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
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 Code-
word equal to logic zero.
0 = Previous value of the transmitted Link Code-
word equal to logic one.
10 - 0
Message/ Message/Unformatted Code field bits [10:0]
RO
0
Unformatted
Code Field
2016 Microchip Technology Inc.
DS00002112A-page 101
MICREL [ MICREL SEMICONDUCTOR ]
