Altera 40-Gbps Ethernet MAC and PHY MegaCore Function User Manual
Page 177
Word
Addr
Bit
R/W
Name
Description
0xB4 31:0 RSC
FEC Uncorrected
Blocks
Counts the number of uncorrectable FEC blocks. Resets to 0
when read. Otherwise, it holds at the maximum count and
does not roll over. Refer to Clause 74.8.4.1 of IEEE 802.3ap-
2000 for details.
0xC0
0
RW
AN enable
When set to 1, enables Auto-Negotiation function. The
default value is 1. For additional information, refer to bit
7.0.12 in Clause 73.8 Management Register Requirements, of
IEEE 802.3ap
-
2007.
1
RW
AN base pages
ctrl
When set to 1, the user base pages are enabled. You can send
any arbitrary data via the user base page low/high bits. When
set to 0, the user base pages are disabled and the state
machine generates the base pages to send.
2
RW
AN next pages
ctrl
When set to 1, the user next pages are enabled. You can send
any arbitrary data via the user next page low/high bits. When
set to 0, the user next pages are disabled. The state machine
generates the null message to send as next pages.
3
R
Local device
remote fault
When set to 1, the local device signals Remote Faults in the
Auto-Negotiation pages. When set to 0 a fault has not
occurred.
4
RW
Force TX nonce
value
When set to 1, forces the TX none value to support some
UNH-IOL testing modes. When set to 0, operates normally.
5
RW
Override AN
When set to 1, the override settings defined by the
AN_TECH
,
AN_FEC
and
AN_PAUSE
registers take effect.
0xC1
0
RW
Reset AN
When set to 1, resets all the 10GBASE-KR Auto-Negotiation
state machines. This bit is self-clearing.
4
RW
Restart AN TX SM
When set to 1, restarts the 10GBASE-KR TX state machine.
This bit self clears. This bit is active only when the TX state
machine is in the AN state. For more information, refer to bit
7.0.9 in Clause 73.8 Management Register Requirements of
IEEE 802.3ap
-
2007.
8
RW
AN Next Page
When asserted, new next page info is ready to send. The data
is in the XNP TX registers. When 0, the TX interface sends
null pages. This bit self clears. Next Page (NP) is encoded in
bit D15 of Link Codeword. For more information, refer to
Clause 73.6.9 and bit 7.16.15 of Clause 45.2.7.6 of IEEE
802.3ap
-
2007.
0xC2
1
RO
AN page received
When set to 1, a page has been received. When 0, a page has
not been received. The current value clears when the register
is read. For more information, refer to bit 7.1.6 in Clause 73.8
of IEEE 802.3ap
-
2007.
2
RO
AN Complete
When asserted, Auto-Negotiation has completed. When 0,
Auto-Negotiation is in progress. For more information, refer
to bit 7.1.5 in Clause 73.8 of IEEE 802.3ap
-
2007.
C-4
10GBASE-KR PHY Register Definitions
UG-01088
2014.12.15
Altera Corporation
10GBASE-KR Registers