XRT84L38IB Exar Corporation, XRT84L38IB Datasheet - Page 231

• Manufacturer Part Number: XRT84L38IB
• Description: Network Controller & Processor ICs 8 Ch T1/E1 Framer
• Manufacturer: Exar Corporation

Specifications of XRT84L38IB

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

REV. 1.0.1
ELEVENTH OCTET OF 16.384MBIT/S DATA STREAM
THIRTEENTH OCTET OF 16.384MBIT/S DATA STREAM
FIFTEENTH OCTET OF 16.384MBIT/S DATA STREAM
X
The following table illustrates how payload bits and signaling bits are multiplexed together into the 16.384Mbit/s
data stream.
TENTH OCTET OF 16.384MBIT/S DATA STREAM
TWELFTH OCTET OF 16.384MBIT/S DATA STREAM
FOURTEENTH OCTET OF 16.384MBIT/S DATA STREAM
4. The local Terminal Equipment also multiplexed signaling bits with payload bits and sent them together
Y
: The Xth payload bit of Channel Y
through the 16.384Mbit/s data stream. When the Terminal Equipment is sending the fifth payload bit of a
particular channel, instead of sending it twice, it inserts the signaling bit A of that particular channel. Simi-
larly, the sixth payload bit of a particular channels is followed by the signaling bit B of that channel; the sev-
enth payload bit is followed by the signaling bit C; the eighth payload bit is followed by the signaling bit D.
B
B
B
B
B
B
1
1
1
5
5
5
IT
IT
IT
IT
IT
IT
1
2
3
0
1
2
0
0
0
0
0
0
B
B
B
B
B
B
A
A
A
1
1
1
IT
IT
IT
IT
IT
IT
1
2
3
0
1
2
1
1
1
1
1
1
B
B
B
B
B
B
2
2
2
6
6
6
IT
IT
IT
IT
IT
IT
1
2
3
0
1
2
2
2
2
2
2
2
B
B
B
B
B
B
2
2
2
B
B
B
IT
IT
IT
IT
IT
IT
1
2
3
0
1
2
3
3
3
3
3
3
211
B
B
B
B
B
B
3
3
3
7
7
7
IT
IT
IT
IT
IT
IT
1
2
3
0
1
2
4
4
4
4
4
4
B
B
B
B
B
B
C
C
C
3
3
3
IT
IT
IT
IT
IT
IT
1
2
3
0
1
2
5
5
5
5
5
5
OCTAL T1/E1/J1 FRAMER
B
B
B
B
B
B
4
4
4
8
8
8
IT
IT
IT
IT
IT
IT
1
2
3
0
1
2
6
6
6
6
6
6
XRT84L38
B
B
B
B
B
B
D
D
D
4
4
4
IT
IT
IT
IT
IT
IT
1
2
3
0
1
2
7
7
7
7
7
7