Table 1065. Configuration Error Codes - STMicroelectronics SPC572L series Reference Manual

RM0400
Typically, the ECODE field is used to communicate which type of message was dropped in
queue overflow or message contention situation, but for the NAR it is also used to denote
the type of configuration error that occurred. If a configuration error is detected, the NAR
generates a Config Error Nexus message and transmits it, with the actual type of error
encoded in the four MSBs of ECODE, as well as the NCE field of the Status Register. The
ECODE field encodings are listed in this table.
ECODE ETYPE
0000xxxxxxx1 0001
0000xxxxxx1x 0001
00001xxxxxxx 0001
0000xxx1xxxx 0001
00010000000
1001
0
00100000000
1001
0
001100000000 1001
01000000000
1001
0
10010000000
1001
0
65.5.10.2 Watchpoint messages
The NAR generates its own watchpoint match message under the circumstances shown in
the following table. The value of the Watchpoint Hit field of the Watchpoint Message is also
shown in this table.

Table 1065. Configuration error codes

Description
Watchpoint message
dropped
Data trace message
dropped
Response message
dropped
Status message
dropped
Config error: multiply Communication
defined port disable mode
Config error: no ALT
Tracebuffer
defined
Config error: cannot Communication
enable port disable mode
Message filtering
Config error: cannot
and/or queue
support message
partitioning
filtering
disabled
Config error: no Power up in
wakeup trigger active mode
DocID027809 Rev 4
NAR action
Occurs with internal message overflow
N/A
error.
Occurs with internal message overflow
N/A error; MMA response message was
dropped.
Occurs with internal message overflow
N/A error; target response (memory access or
NRR) message was dropped.
Occurs with internal message overflow
N/A
error.
Both MSP and ALT were assigned to the
same port. NPC waits until the configuration
is fixed before proceeding.
An MSP was defined without defining the
ALT. The NPC reverts to tracebuffer mode.
User has attempted to enable a port that
does not exist in this implementation of the
NPC.
User has attempted to enable message
filtering or queue partitioning with only one
output enabled. Filtering/partitioning is
turned off.
Occurs if none of the defined clients in the
system can cause a wakeup (PUS is set in
NAR_CR, but no NAR_STCRs have WUT
set).
Nexus Aurora Router (NAR)
Comment
1899/2058
1908