PM5381-BI PMC-Sierra, Inc., PM5381-BI Datasheet - Page 148

• Manufacturer Part Number: PM5381-BI
• Description: ATM UNI, Single Channel ATM PHY Interface for 2488.32Mbps
• Manufacturer: PMC-Sierra, Inc.

Proprietary and Confidential to PMC-Sierra, Inc., and for its Customers’ Internal Use
Document ID: PMC-2000489, Issue 4
Register 000EH: S/UNI-2488 Diagnostics
The reserved bit in this register should be set to logic 0 for normal operation.
DD
DS
TSLD_VAL
Bit
Bit 15
Bit 14
Bit 13
Bit 12
Bit 11
Bit 10
Bit 9
Bit 8
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
The Disable Descrambling (DD) bit is used to disable SONET descrambling performed by
the RRMP block. When set to logic 1, SONET descrambling is disabled. When set to logic
0, SONET descrambling is enabled. For normal operation, this bit should be set to logic zero.
Note that due to the high speed integrated analog front end, there is a minimum transition
density that must be maintained. This device is intended for use with an incoming data stream
that has been scrambled as specified by Bellcore GR-253 Core to reduce the probability of
extended periods without transitions.
The Disable Scrambling (DS) bit is used to disable SONET scrambling performed by the
TRMP block. When set to logic 1, SONET scrambling is disabled. When set to logic 0,
SONET scrambling is enabled. For normal operation, this bit should be set to logic zero.
The TSLD value (TSLD_VAL) bit is used to set the value optionally inserted into the section
DCC (D1-D3) in the transmit data stream as configured using the TSLDEN bit in the TRMP
Configuration register. When set to logic 1, ones are inserted. When set to logic 0, zeros are
inserted.
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Function
APSIFP_THRESH[7]
APSIFP_THRESH[6]
APSIFP_THRESH[5]
APSIFP_THRESH[4]
APSIFP_THRESH[3]
APSIFP_THRESH[2]
APSIFP_THRESH[1]
APSIFP_THRESH[0]
LOCK0
Reserved
Reserved
Reserved
TLD_VAL
TSLD_VAL
DS
DD
S/UNI-2488 Telecom Standard Product Datasheet
Default
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
Released
148