Packets marked bad, Status indication – Altera SerialLite II Protocol User Manual
Page 74
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Altera Corporation
SerialLite II Protocol Reference Manual
Error Events & Handling
Packets Marked Bad
A transmitted packet is tagged with the {EBP} sequence under the
following conditions:
■
User-side interface protocol error for user packets
■
User-indicated packet is bad through the assertion of TERR on the
user-side interface
■
Upon receiving packets with {EBP}, the receiver forwards the packets
to the user logic and asserts the error signal on the user-side interface
Status Indication
The SerialLite II protocol requires a status port to indicate various errors
and internal operating status.
lists the required status signals.
Table 2–26. Status Output Signal Assignments
Name
Type
Logic
Description
LINK_UP
Static
Active high
0 = Indicates link initialization status
1 = Indicates link active status
CATA_ERR
Static
Active high
0 = No catastrophic errors
1 = Catastrophic error detected
LINK_ERR
Pulsed
Active high
0 = No link errors
1 = Link error detected
DATA_ERR
Pulsed
Active high
0 = No data errors
1 = Data error detected
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