Table 1050. Nar_Cr Field Descriptions - STMicroelectronics SPC572L series Reference Manual

Nexus Aurora Router (NAR)
Field
NAR Enable.
31
0 NAR is disabled unless HBDP is independently enabled. See
NEN information.
1 NAR is enabled.
NAR Communication Disable.
30
0 NAR monitors clients for activity
NCD
1 NAR communication with clients is disabled
Timestamp Enable.
29
0 Timestamp packet is not included in messages
TEN
1 Timestamp packet is included in messages from all client including NAR generated messages
28 Timestamp Reset.
TRS 0 to 1 transition: reset timestamp counter in NAR
Timestamp Granularity (Mode).
Note: Some clients may only support timestamps on every message.
27–26
00 Add timestamp to every message
TSG
01 Add timestamp to every 4th message
10 Add timestamp to every 16th message
11 Add timestamp to every 32nd message
Stall Error Disable.
25
0 NAR injects dummy complete message when active client stalls
SED
1 NAR does not inject dummy complete message
Stall Recovery Disable.
24
0 Stalled receive queue resumes operation when its client comes back on line
SRD
1 Stall error recovery is disabled
Tracebuffer Wrap.
23
0 NAR does not capture new data when main queue is full
TBW
1 NAR begins overwriting main queue from the beginning upon queue overflow
Alternate Queue Partition.
00 Queue partitioning is disabled
22–21
01 Reserved
AQP
10 Reserved
11 Reserved
20 Reserved and must be written with 0
19–16 Reserved and must be written with 0s
Watchpoint Enable
000 NAR watchpoint messaging is disabled
15–13
xx1 NAR generates a watchpoint message upon a sync event
WPE x1x NAR generates a watchpoint message upon a trace memory bus or tracebuffer block full/wrap
event
1xx NAR generates a watchpoint message upon a suppress-mode event
12 Reserved
11 Reserved. This bit must be written with 0.
10–9 Reserved and must be written with 0s.
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Table 1050. NAR_CR field descriptions

Description
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