S/UNI®-8x155 ASSP Telecom Standard Product Data Sheet
Released
Register 0x051, 0x151, 0x251, 0x351, 0x451, 0x551, 0x651, 0x751:
SPTB Path Trace Identifier Status
Bit
Type
Function
Unused
Unused
UNEQI
UNEQV
RTIUI
RTIUV
RTIMI
RTIMV
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
X
X
X
X
X
X
X
X
R
R
R
R
R
R
This register reports the path trace identifier status of the SPTB.
RTIMV:
When TIMODE is low, the RTIMV bit reports the match/mismatch status of the identifier
message framer. RTIMV is a logic one when the accepted identifier message differs from
the expected message written by the microprocessor. The accepted message is the last
message to have been received 5 consecutive times. RTIMV is a logic zero when the
accepted message matches the expected message.
If the accepted message string is all-zeros, the mismatch is not declared unless the
ZEROEN register bit is set. This register is invalid when TIMODE is high.
RTIMI:
When TIMODE is low, the RTIMI bit is a logic one when match/mismatch status of the
trace identifier framer changes state. This bit is cleared when this register is read. This
register is invalid when TIMODE is high.
RTIUV:
The RTIUV bit reports the stable/unstable status of the identifier message framer.
When TIMODE is low, RTIUV is set high when 8 trace messages mismatching against their
immediate predecessor message have been received without a persistent message being
detected. The unstable counter is incremented on each message that mismatches its
predecessor and is cleared on the reception of a persistent message. RTIUV is set high
when the unstable counter reaches 8. RTIUV is set low and the unstable counter cleared
once a persistent message has been received.
Proprietary and Confidential to PMC-Sierra, Inc., and for its customers’ internal use.
Document No.: PMC- 2010299, Issue 2
204
PMC [ PMC-SIERRA, INC ]
