I347-AT4 Datasheet, PDF (100/148 Pages) Intel Corporation – Intel® Ethernet Network Connection I347-AT4 Datasheet

I347-AT4—Programmer’s Visible State
Bits
Field
12
Duplex Status
11:10 Speed Status
9
Transmit Pause
Status
8
Receive Pause
Status
7
Copper Status
6:0
Reserved
Mode
RO
RO
RO
RO
RO
RO
HW Rst SW Rst
Description
0x0
0x0
0x0
0x0
0x0
0x00
0x0
0x0
0x0
0x0
0x0
0x00
Register bit is cleared when link goes down and loaded when
a base page is received
Received Code Word Bit 12
1 = Copper Interface on the link Partner is capable of Full-
Duplex
0 = Copper Interface on the link partner is capable of Half-
Duplex
Register bits are cleared when link goes down and loaded
when a base page is received
Received Code Word Bit 11:10
00 = 10 Mbps
01 = 100 Mbps
10 = 1000 Mbps
11 = Reserved
This bit is non-zero only if the link partner supports enhanced
SGMII auto negotiation.
Received Code Word Bit 9
1 = Enabled
0 = Disabled
This bit is non-zero only if the link partner supports enhanced
SGMII auto negotiation.
Received Code Word Bit 8
1 = Enabled
0 = Disabled
This bit is non-zero only if the link partner supports enhanced
SGMII auto negotiation.
Received Code Word Bit 7
1 = Reserved
0 = Copper media
Register bits are cleared when link goes down and loaded
when a base page is received
Received Code Word Bits 6:0
Must be 0000001
4.1.38 Cable Tester TX to MDI[0] Rx Coupling - Page 5, Register 16
Bits
15
Field
Mode
Reflected Polarity RO
HW Rst SW Rst
Description
xx
Retain
1 = Positive Reflection
0 = Negative reflection
90