PM7344 S/UNI-MPH
DATA SHEET
PMC-950449
ISSUE 6
MULTI-PHY USER NETWORK INTERFACE
Registers 040H, 140H, 240H and 340H: T1-TRAN Configuration
Bit
Type
Function
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Reserved
Reserved
B8ZS
ESF
FMS1
FMS0
Reserved
Reserved
0
0
0
0
0
0
0
0
Reserved:
The reserved bit must be programmed to logic 0 for correct operation.
B8ZS:
The B8ZS bit enables B8ZS line coding. When B8ZS is a logic 1, the
transmit T1 stream is B8ZS encoded. When B8ZS is a logic 0, the transmit
T1 stream is AMI encoded.
ZCS1
ZCS0
Zero Code Suppression Format
0
0
0
1
None
GTE Zero Code Suppression (Bit 8 of an all zero
channel byte is replaced by a one, except in signalling
frames where bit 7 is forced to a one.)
1
1
0
1
DDS Zero Code Suppression (All zero data byte
replaced with "10011000")
Bell Zero Code Suppression (Bit 7 of an all zero channel
byte is replaced by a one.)
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
146
PMC [ PMC-SIERRA, INC ]
