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S/UNI-8x155 ASSP Telecom Standard Product Data Sheet
Released
Proprietary and Confidential to PMC-Sierra, Inc., and for its customers’ internal use.
Document No.: PMC- 2010299, Issue 2
394
Figure 24 Serial Diagnostic Loopback Mode
External APS
Interface
U
S
Microprocessor
Interface
Rx
Rx
ATM Cell
Processor
Processor
Processor
Rx
Rx
POS Frame
Processor
Processor
Processor
Rx
Rx
Path O/H
Processor
Processor
Processor
Tx
Tx
Path O/H
Processor
Processor
Processor
Tx
Tx
POS Frame
Processor
Processor
Processor
Tx
Tx
ATM Cell
Processor
Processor
Processor
Path
Path
Path
Trace Buffer
Trace Buffer
Trace Buffer
ATM Cell
ATM Cell
POS Frame
POS Frame
Path O/H
Path O/H
Path O/H
Path O/H
POS Frame
POS Frame
ATM Cell
ATM Cell
Rx
Rx
Rx
Tx
Tx
Tx
JTAG Test
Access Port
P
A
S
Rx
Rx
Line O/H
Processor
Processor
Processor
Tx
Tx
Line O/H
Processor
Processor
Processor
Tx
Tx
Section O/H
Processor
Processor
Processor
Section
Trace Buffer
Trace Buffer
Trace Buffer
Rx
Rx
Section O/H
Processor
Processor
Processor
WAN
Synch.
Synch.
Synch.
Sync Status,
BERM
BERM
BERM
Section/
Line DCC
Insertion
Insertion
Section/
Line DCC
Extraction
Extraction
Extraction
S
Line O/H
Line O/H
Line O/H
Line O/H
Section O/H
Section O/H
Section
Section
Section O/H
Section O/H
WAN
WAN
Sync Status,
Sync Status,
Section/
Line DCC
Section/
Line DCC
Line DCC
S
Rx
Tx
Tx
Rx
Section/
Line DCC
Insertion
Section/
Figure 25 Parallel Diagnostic Loopback Mode
External APS
Interface
U
S
Microprocessor
Interface
Rx
Rx
ATM Cell
Processor
Processor
Processor
Rx
Rx
POS Frame
Processor
Processor
Processor
Rx
Rx
Path O/H
Processor
Processor
Processor
Tx
Tx
Path O/H
Processor
Processor
Processor
Tx
Tx
POS Frame
Processor
Processor
Processor
Tx
Tx
ATM Cell
Processor
Processor
Processor
Path
Path
Path
Trace Buffer
Trace Buffer
Trace Buffer
ATM Cell
ATM Cell
POS Frame
POS Frame
Path O/H
Path O/H
Path O/H
Path O/H
POS Frame
POS Frame
ATM Cell
ATM Cell
Rx
Rx
Rx
Tx
Tx
Tx
JTAG Test
Access Port
P
A
S
Rx
Rx
Line O/H
Processor
Processor
Processor
Tx
Tx
Line O/H
Processor
Processor
Processor
Tx
Tx
Section O/H
Processor
Processor
Processor
Section
Trace Buffer
Trace Buffer
Trace Buffer
Rx
Rx
Section O/H
Processor
Processor
Processor
WAN
Synch.
Synch.
Synch.
Sync Status,
BERM
BERM
BERM
Section/
Line DCC
Insertion
Insertion
Section/
Line DCC
Extraction
Extraction
Extraction
S
Line O/H
Line O/H
Line O/H
Line O/H
Section O/H
Section O/H
Section
Section
Section O/H
Section O/H
WAN
WAN
Sync Status,
Sync Status,
Section/
Line DCC
Section/
Line DCC
Line DCC
S
Rx
Tx
Tx
Rx
Section/
Line DCC
Insertion
Section/