IDT82P2282 Integrated Device Technology, Inc., IDT82P2282 Datasheet - Page 218

• Manufacturer Part Number: IDT82P2282
• Description: 2 Channel T1/J1/E1 Transceiver
• Manufacturer: Integrated Device Technology, Inc.

IDT82P2282
T1/J1 TPLC Configuration (0CBH, 1CBH)
SIGSNAP:
of the current whole SF, ESF or SLC-96 frame.
GSTRKEN:
ZCS[2:0]:
GSUBST[2:0]:
Programming Information
GSUBST[2:0]
ZCS[2:0]
Bit Name
Default
Bit No.
others
0 0 0
0 0 1
0 1 0
0 1 1
1 0 0
Type
This bit is valid in SF, ESF or SLC-96 format.
= 0: Disable the signaling snapshot.
= 1: Enable the signaling snapshot. That is, the signaling bits of the first frame are locked and input on the TSIGn/MTSIG pin as the signaling bits
= 0: The replacement is performed on a per-channel basis by setting the STRKEN bit (b4, T1/J1-ID-41~58H) in the corresponding channel.
= 1: The signaling bits (ABCD) of all channels are replaced by the signaling trunk conditioning code in the A,B,C,D bits (b3~0, T1/J1-ID-41~58H).
These bits select one type of Zero Code Suppression. (Bit 1 is the MSB in the following table).
These bits select the replacement of all the channels.
others
0 0 0
0 0 1
0 1 0
0 1 1
1 0 0
No Zero Code Suppression.
GTE Zero Code Suppression. Bit 8 of an all-zero channel is replaced by a ‘1’, except in signaling frames where Bit 7 is forced to be a ‘1’.
Jammed Bit 8 Zero Code Suppression. Bit 8 of all channels are replaced by a ‘1’.
Bell Zero Code Suppression. Bit 7 of an all-zero channel is replaced by a ‘1’.
DDS Zero Code Suppression. An all-zero channel is replaced with ‘10011000’.
Reserved.
The replacement is performed on a per-channel basis by setting the SUBST[2:0] bits (b7~5, T1/J1-ID-01~18H) in the corresponding channel.
The data of all channels is replaced by the data trunk code set in the DTRK[7:0] bits (b7~0, T1/J1-ID-21~38H).
The data of all channels is replaced by the A-Law digital milliwatt pattern.
The data of all channels is replaced by the µ-Law digital milliwatt pattern.
The data of all channels is replaced by the payload loopback code extracted from the Elastic Store Buffer in the receive path.
Reserved.
SIGSNAP
R/W
7
1
GSTRKEN
R/W
6
0
ZCS2
R/W
5
0
Zero Code Suppression
ZCS1
R/W
4
0
Replacement Selection
207
DUAL T1/E1/J1 LONG HAUL / SHORT HAUL TRANSCEIVER
ZCS0
R/W
3
0
GSUBST2
R/W
2
0
GSUBST1
R/W
1
0
October 7, 2003
GSUBST0
R/W
0
0