PM5380-BI PMC-Sierra, Inc., PM5380-BI Datasheet - Page 202
PM5380-BI
Manufacturer Part Number
PM5380-BI
Description
Network Interface, SATURN User Network Interface (8x155) Telecom Standard Product
Manufacturer
PMC-Sierra, Inc.
Datasheet
1.PM5380-BI.pdf
(440 pages)
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Proprietary and Confidential to PMC-Sierra, Inc., and for its customers’ internal use.
Document No.: PMC- 2010299, Issue 2
Register 0x050, 0x150, 0x250, 0x350, 0x450, 0x550, 0x650, 0x750:
This register controls the receive and transmit portions of the SPTB.
LEN16:
NOSYNC:
TNULL:
PER5:
SPTB Control
The LEN16 bit selects the length of the path trace message to be 16 bytes or 64 bytes.
When LEN16 is a logic one, a 16 byte path trace message is selected. When LEN16 is a
logic zero, a 64 byte path trace message is selected.
The NOSYNC bit disables the writing of the path trace message into the trace buffer to be
synchronized to the content of the message. When LEN16 is a logic one and NOSYNC is a
logic zero, the receive path trace message byte with its most significant bit set will be
written to the first location in the buffer. When LEN16 and NOSYNC are logic zero, the
byte after the carriage return/linefeed (CR/LF) sequence will be written to the first location
in the buffer. When NOSYNC is a logic one, synchronization is disabled, and the path trace
message buffer behaves as a circular buffer.
The TNULL bit controls the insertion of an all-zero path trace identifier message in the
transmit stream. When TNULL is a logic one, the contents of the transmit buffer is ignored
and all-zeros bytes are inserted. When TNULL is a logic zero, the contents of the transmit
path trace buffer is sent to TPOP for insertion into the J1 transmit path overhead byte.
TNULL should be set high before changing the contents of the trace buffer to avoid sending
partial messages.
The PER5 bit controls the number of times a path trace identifier message must be received
unchanged before being accepted. When PER5 is a logic one, a message is accepted when
it is received unchanged five times consecutively. When PER5 is a logic zero, the message
is accepted after three identical repetitions.
Bit
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Function
ZEROEN
TIMODE
RTIUIE
RTIMIE
PER5
TNULL
NOSYNC
LEN16
S/UNI®-8x155 ASSP Telecom Standard Product Data Sheet
Default
0
0
0
0
0
1
0
0
Released
202
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