PM5380-BI PMC-Sierra, Inc., PM5380-BI Datasheet - Page 343

• 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
Register 0x1038, 0x103C: TAOP Link #0 and #1 Control
The Transmit APS Overhead Processor (TAOP) controls the transmit APS interface generating
A1/A2 framing and SONET scrambling. Four instances of this block is used, one for each APS
link.
LAIS:
DS:
Reserved:
The LAIS bit controls the insertion of line alarm indication signal (AIS). When LAIS is set
to logic one, the TSOP inserts AIS into the transmit SONET/SDH stream. Activation or
deactivation of line AIS insertion is synchronized to frame boundaries. Line AIS insertion
results in all bits of the SONET/SDH frame being set to 1 prior to scrambling except for the
section overhead.
The DS bit is set to logic one to disable the scrambling of the STS-3c/STM-1 stream. When
DS is a logic zero, scrambling is enabled.
The reserved bits must be programmed to logic zero for proper operation.
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
Function
Unused
DS
Reserved
Reserved
Reserved
Reserved
Reserved
LAIS
S/UNI®-8x155 ASSP Telecom Standard Product Data Sheet
Default
X
0
0
0
0
0
0
0
Released
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