KSZ8795CLX
TABLE 4-25: EEE PORT REGISTERS (CONTINUED)
Address
Name
Description
Mode
Default
0
Link Partner 1 = Link Partner is Auto-Negotiation abled
Auto-Negoti- 0 = Link Partner is not Auto-Negotiation abled
ation Able
RO
0
EEE Port Register 1
Port Auto-Negotiation Next Page Transmit Register
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: 0x0E (Bits[15:8]), 0x0F (Bits[7:0])
Location: (001 EEE) -> {0xn, offset} -> 0xA0 holds the data.
This register doesn’t need to be set if EEE Port Register 5 Bit[7] = 1 default for Automatically perform EEE
capability
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:
R/W
0
1 = Additional Next Page(s) will follow.
0 = Last page.
14
13
Reserved
—
RO
0
1
Message
Page
Message Page (MP) is used by the Next Page
function to differentiate a Message Page from an
Unformatted Page. MP shall be set as follows:
R/W
1 = Message Page
0 = Unformatted Page
12
11
Acknowledge Acknowledge 2 (Ack2) is used by the Next Page
R/W
0
0
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
RO
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/
Unformatted
Code Field
Message/Unformatted Code field Bits[10:0]
R/W
1
DS00002112A-page 100
2016 Microchip Technology Inc.
MICREL [ MICREL SEMICONDUCTOR ]
