IDT82P2281 Datasheet, PDF (329/375 Pages) Integrated Device Technology – Single T1/E1/J1 Long Haul Short Haul Transceiver

IDT82P2281
SINGLE T1/E1/J1 LONG HAUL / SHORT HAUL TRANSCEIVER
E1 RPLC Configuration (0D0H)
Bit No.
7
6
5
4
3
2
1
0
Bit Name SIGSNAP
GSTRKEN
GSUBST2
GSUBST1
GSUBST0
Type
R/W
R/W
Reserved
R/W
R/W
R/W
Default
0
0
0
0
0
SIGSNAP:
This bit is valid when Signaling Multi-frame is in synchronization.
= 0: Disable the signaling snapshot.
= 1: Enable the signaling snapshot. That is, the signaling bits of the first Basic frame are locked and output on the RSIG/MRSIG pin as the signal-
ing bits of the current whole Signaling Multi-frame.
GSTRKEN:
= 0: The replacement is performed on a per-timeslot basis by setting the STRKEN bit (b4, E1-ID-41~4FH & 51~5FH) in the corresponding
timeslot.
= 1: The signaling bits (ABCD) of all timeslots are replaced by the signaling trunk conditioning code in the A,B,C,D bits (b3~0, E1-ID-41~4FH &
51~5FH).
GSUBST[2:0]:
These bits select the replacement of all the timeslots.
GSUBST[2:0]
Replacement Selection
000
001
010
011
the others
The replacement is performed on a per-timeslot basis by setting the SUBST[2:0] bits (b7~5, E1-ID-00~1FH) in the corresponding timeslot.
The data of all timeslots is replaced by the data trunk code set in the DTRK[7:0] bits (b7~0, E1-ID-20~3FH).
The data of all timeslots is replaced by the A-Law digital milliwatt pattern.
The data of all timeslots is replaced by the µ-Law digital milliwatt pattern.
Reserved.
Programming Information
318
October 7, 2003