PM5380-BI PMC-Sierra, Inc., PM5380-BI Datasheet - Page 393

• Manufacturer Part Number: PM5380-BI
• Description: Network Interface, SATURN User Network Interface (8x155) Telecom Standard Product
• Manufacturer: PMC-Sierra, Inc.

Proprietary and Confidential to PMC-Sierra, Inc., and for its customers’ internal use.
Document No.: PMC- 2010299, Issue 2
The serial diagnostic loopback, see Figure 24, connects the high speed transmit data and clock
to the high speed receive data and clock. While in this mode, the entire transmit path is
operating normally and data is transmitted on the TXD+/- outputs.
The parallel diagnostic loopback, see Figure 25, connects the byte wide transmit data and clock
to the byte wide receive data and clock. While in this mode, the entire transmit path is operating
normally and data is transmitted on the TXD+/- outputs.
The path diagnostic loopback, see Figure 26, connects the transmit path processor TPOP output
to the receive path processor RPOP. While in this mode, the entire transmit path is operating
normally and data is transmitted on the TXD+/- outputs.
The data diagnostic loopback, see Figure 27, connects the transmit POS/ATM processor
TXFP/TXCP) to the corresponding receive POS/ATM processor (RXFP/RXCP). While in this
mode, the transmit path does not operate normally and the data transmitted on the TXD+/-
outputs is invalid.
Figure 23 Line Loopback Mode
Trace Buffer
Section O/H
Section O/H
Trace Buffer
Section O/H
Processor
Section O/H
Processor
Line DCC
Extraction
Trace Buffer
Section O/H
Processor
Section O/H
Processor
Section/
Line DCC
Extraction
Section
Line DCC
Processor
Processor
Section/
Line DCC
Extraction
Section
Insertion
Section/
Section/
Section
Rx
Tx
Rx
Tx
Rx
Tx
Line DCC
Insertion
Section/
Line DCC
Insertion
Section/
Sync Status,
Sync Status,
Processor
Processor
Access Port
Line O/H
Synch.
Line O/H
Sync Status,
JTAG Test
Processor
Processor
Line O/H
WAN
Synch.
Line O/H
Processor
Processor
BERM
Line O/H
WAN
Synch.
Line O/H
BERM
WAN
Tx
Rx
BERM
Tx
Rx
Tx
Rx
External APS
Interface
S/UNI®-8x155 ASSP Telecom Standard Product Data Sheet
Trace Buffer
Processor
Trace Buffer
Processor
Path O/H
Path O/H
Processor
Trace Buffer
Processor
Path O/H
Path O/H
Processor
Processor
Path O/H
Path O/H
Path
Tx
Path
Rx
Tx
Path
Rx
Tx
Rx
Microprocessor
Interface
POS Frame
POS Frame
Processor
Processor
Processor
Processor
POS Frame
POS Frame
ATM Cell
ATM Cell
Processor
Processor
Processor
Processor
POS Frame
POS Frame
ATM Cell
ATM Cell
Processor
Processor
Processor
Processor
ATM Cell
ATM Cell
Tx
Tx
Rx
Rx
Rx
Rx
Tx
Tx
Rx
Rx
Tx
Tx
Released
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