PM6341E1XC Datasheet, PDF (159/272 Pages) PMC-Sierra, Inc – E1 FRAMER/TRANSCEIVER

DATA SHEET
PMC-910419
ISSUE 8
PM6341 E1XC
E1 FRAMER/TRANSCEIVER
TPSC Internal Registers 20-3FH: Data Control byte
Bit
Type
Function
Bit 7
R/W
Bit 6
R/W
Bit 5
R/W
Bit 4
R/W
Bit 3
R/W
Bit 2
R/W
Bit 1
R/W
Bit 0
R/W
SUBS
DS[0]
DS[1]
SIGSRC
A'
B'
C'
D'
SUBS, DS[1], and DS[0]:
The SUBS, DS[1], and DS[0] bits select one of the following data
manipulations to be performed on the timeslot:
SUBS
0
0
DS[0]
0
0
0
1
0
1
1
0
1
1
1
1
DS[1]
0
1
0
1
X
0
1
Function
OFF - no change to PCM timeslot data
ADI - data inversion on timeslot bits
1,3,5,7
ADI - data inversion on timeslot bits
2,4,6,8
INV - data inversion on all timeslot bits
Data substitution on - IDLE code
replaces PCM timeslot data
Data substitution on - A-Law digital
milliwatt pattern* replaces TPCM
timeslot data.
Data substitution on - µ-Law digital
milliwatt pattern* replaces TPCM
timeslot data.
* _{The A-Law digital milliwatt pattern used is that defined in Recommendation}
G.711 for A-law:
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE 143