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S/UNI-QUAD
PMC-Sierra, Inc.
PM5349 S/UNI-QUAD
DATASHEET
PMC-971239 ISSUE 6 SATURN USER NETWORK INTERFACE (155-QUAD)
Proprietary and Confidential to PMC-Sierra, Inc., and for its Customers’ Internal Use
95
Register 0x20: TLOP Control
Bit Type Function Default
Bit 7 R/W Reserved 0
Bit 6 R/W Reserved 0
Bit 5 R/W APSREG 0
Bit 4 R/W Reserved 0
Bit 3 R/W Reserved 0
Bit 2 R/W Reserved 0
Bit 1 R/W Reserved 0
Bit 0 R/W LRDI 0
LRDI:
The LRDI bit controls the insertion of line far end receive failure (LRDI). When
LRDI is set to logic one, the TLOP inserts line RDI into the transmit
SONET/SDH stream. Line RDI is inserted by transmitting the code 110 in bit
positions 6, 7 and 8 of the K2 byte of the transmit stream.
APSREG:
The APSREG bit selects the source for the transmit APS channel. When
APSREG is a logic zero, 0x0000 hexadecimal is inserted in the transmit APS
channel. When APSREG is a logic one, the transmit APS channel is inserted
from the TLOP Transmit K1 Register and the TLOP Transmit K2 Register.
Reserved:
The reserved bits must be programmed to logic zero for proper operation.