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274 Software Developer’s Manual
Register Descriptions
Auto-Negotiation
Fault
6
Auto-Negotiate Fault: This is the logical
OR of PHY register 1, bit 4, PHY
register 6, bit 4, and PHY register 10, bit
15.
RO 0b 0b
Reserved 7 Always read as 0b. RO 0b 0b
Data Err[0] 8
Mode:
10: 10 Mbps polarity error.
100: Symbol error.
1000: Gig idle error.
LH 0b 0b
Data Err[1] 9
Mode:
10: Reserved.
100: Scrambler unlocked.
1000: Local receiver not OK.
RO/
LH
0b 0b
Count Overflow 10 The idle error counter has overflowed.
RO/
LH
0b 0b
Gigabit Rem Rcvr
NOK
11
Gig has detected a remote receiver
status error. This is a latched high
version of PHY register 10, bit 12.
RO/
LH
0b 0b
Gigabit Master
Resolution
12
Gig has resolved to master. This is a
duplicate of PHY register 10, bit 14.
Programmers must read PHY register
10, bit 14 to clear this bit.
RO 0b 0b
Gigabit Master Fault 13
A fault has occurred with the gig master/
slave resolution process. This is a copy
of PHY register 10, bit 15.
Programmers must read PHY register
10, bit 15 to clear this bit.
RO 0b 0b
Gigabit Scrambler
Error
14
1b indicates that the PHY has detected
gigabit connection errors that are most
likely due to a non-IEEE compliant
scrambler in the link partner.
0b = Normal scrambled data.
Definition is: If an_enable is true and in
Gigabit mode, on the rising edge of
internal signal link_fail_inibit
timer_done, the dsp_lock is true but
loc_rcvr_OK is false.
RO 0b 0b
SS Downgrade 15
Smart Speed has downgraded the link
speed from the maximum advertised.
RO/
LH
0b 0b
Table 13-38. PHY Link Health Register Bit Description
Field Bit(s) Description Mode HW Rst SW Rst