P3041NXE7PNC

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 actually down if either the TBI link status
is cleared or the SerDes lane receive 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.

P3041NXE7PNC

Mfr. #:
Manufacturer:
NXP / Freescale
Description:
Microprocessors - MPU P3041-1500MHZ XT R2.0
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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