PM4341AT1XC
DATA SHEET
PMC-900602
ISSUE 7
T1 FRAMER/TRANSCEIVER
DMW:
When the DMW bit is set to a logic 1, the digital milliwatt pattern replaces the
BTPCM input data for the duration of that channel.
Data inversion, idle and digital milliwatt insertion are performed independent
of the transmit framing format selected. Digital milliwatt insertion takes
precedence over idle code insertion which, in turn, takes precedence over the
various data inversions.
ZCS0, ZCS1:
The ZCS[1:0] bits select the zero code suppression used as follows:
Table 13
ZCS1
-TPSC Zero Code Suppression Options
ZCS0
Description
0
0
0
1
No Zero Code Suppression
GTE Zero Code Suppression ("jammed bit 8", except
in signalling frames when "jammed bit 7" is used if
the signalling bit is 0)
1
1
0
1
DDS Zero Code Suppression (data byte replaced
with "10011000")
Bell Zero Code Suppression ("jammed bit 7")
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
134
PMC [ PMC-SIERRA, INC ]
