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P3041NXE7PNC
P1-P3
P4-P6
P7-P8
TM
Confidential and Proprietary
4
Erratum –
A-007207
TBI link status may stay “up” after SGMII
electrical idle detected (cont. 2 of 4)
Impact
:
If the system
never enters SGMII electrical idle, or if
the transition
from active to common mode takes
less than 40 UI (~32 ns), then
there is no impact
and the false link up scenario does not occur.
If the system can generate
an SGMII electrical idle condition as
described above, then the TBI status may stay stuck at 1 while the
link is down and does not transition to 0 until valid
K28.5
characters are received again.
TM
Confidential and Proprietary
5
Erratum –
A-007207
TBI link status may stay “up” after SGMII
electrical idle detected (cont. 3 of 4)
Workaround
:
If TBI
SR[Link Status] = 0, the link is down.
For affected systems, in addition to examining the TBI link status, examine the
SerDes electrical idle state.
The link is
ac
tually down if either the
TBI link status
is cleared or the SerDes lane receiv
e electrical idle is detected.
SerDes electrical
idle detected
is BnGCRm1[REIDL] = 1 for bank n, lane
m.
Example pseudo-code:
if
(BnGCRm1[REIDL] == b'1)
OR
(TBI SR[LINK STATUS] == b'0)
{
LINK is DOWN
}
TM
Confidential and Proprietary
6
Erratum –
A-007207
TBI link status may stay “up” after SGMII
electrical idle detected (cont. 4 of 4)
Disposition
:
No plans to fix.
P1-P3
P4-P6
P7-P8
P3041NXE7PNC
Mfr. #:
Buy P3041NXE7PNC
Manufacturer:
NXP / Freescale
Description:
Microprocessors - MPU P3041-1500MHZ XT R2.0
Lifecycle:
New from this manufacturer.
Delivery:
DHL
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Payment:
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