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Logical/Transport Error Handling and Logging
Logical/Transport Error Handling and Logging
Error management registers allow detection and logging of logical/transport layer errors. The detectable
errors are captured in the logical layer error detect CSR (see
errors are captured in the logical layer error detect CSR (see
names the functional
block(s) involved for each detectable error condition, and includes brief descriptions of the errors captured.
Figure 44. Logical/Transport Layer Error Detect CSR (ERR_DET)
31
30
29
28
27
26
25
24
IO_ERR_
MSG_ERR_
ERR_MSG_
ILL_TRANS_
MSG_REQ_
PKT_RSPNS_
Reserved
Reserved
RSPNS
RSPNS
FORMAT
DECODE
TIMEOUT
TIMEOUT
R/W-0
R/W-0
R-0
R/W-0
R/W-0
R-0
R/W-0
R/W-0
23
22
21
UNSOLICITED_
UNSUPPORTED_
Reserved
RSPNS
TRANS
R/W-0
R/W-0
R-0
8
Reserved
R-0
7
6
5
0
RX_CPPI_
RX_IO_DMA_
Reserved
SECURITY
ACCESS
R/W-0
R/W-0
R-0
LEGEND: R = Read; W = Write; -n = Value after reset
Table 34. Logical/Transport Layer Error Detect CSR (ERR_DET) Field Descriptions
Bit
Field
Value
Description
31
IO_ERR_RSPNS
IO error response (endpoint device only)
0
An LSU did not receive an ERROR response to an IO logical layer request.
1
An LSU received an ERROR response to an IO logical layer request. To clear
this bit, write 0 to it.
this bit, write 0 to it.
30
MSG_ERR_RSPNS
Message error response (endpoint device only)
0
The TXU did not receive an ERROR response to a message logical layer
request.
request.
1
The TXU received an ERROR response to a message logical layer request. To
clear this bit, write 0 to it.
clear this bit, write 0 to it.
29
Reserved
0
This read-only bit returns 0 when read.
28
ERR_MSG_FORMAT
Error in message format (endpoint device only)
0
The RXU did not receive a message data payload with an invalid size or
segment.
segment.
1
The RXU received a message data payload with an invalid size or segment. To
clear this bit, write 0 to it.
clear this bit, write 0 to it.
27
ILL_TRANS_DECODE
Illegal transaction decode (switch or endpoint device)
For an LSU or the TXU:
0
The LSU/TXU did not receive illegal fields in the response packet for an
IO/message transaction.
IO/message transaction.
1
The LSU/TXU received illegal fields in the response packet for an IO/message
transaction. To clear this bit, write 0 to it.
transaction. To clear this bit, write 0 to it.
For the MAU or the RXU:
0
The MAU/RXU did not receive illegal fields in the request packet for an
IO/message transaction.
IO/message transaction.
1
The MAU/RXU received illegal fields in the request packet for an IO/message
transaction. To clear this bit, write 0 to it.
transaction. To clear this bit, write 0 to it.
26
Reserved
0
This read-only bit returns 0 when read.
SPRUE13A – September 2006
Serial RapidIO (SRIO)
83