XRT84L38IB Exar Corporation, XRT84L38IB Datasheet - Page 153

• 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
B
IT
N
3-2
1-0
UMBER
5
4
Receive Signaling
Output Enable
Receive Signaling
Substitution Control
Signaling Extraction
Control
B
IT
N
AME
B
IT
R/W
R/W
R/W
T
YPE
Receive Signaling Output Enable:
When these bits are set to 0:
The XRT84L38 framer will not send extracted signaling bits from
the incoming DS1 payload data to external equipment through
the Receive Signaling Output pin (RxSig_n).
When these bits are set to 1:
The XRT84L38 framer will send extracted signaling bits from the
incoming DS1 payload data to external equipment through the
Receive Signaling Output pin (RxSig_n).
Receive Signaling Substitution Control:
When these bits are set to 00:
The received signaling bits are replaced by all ones and send to
the external equipment.
When these bits are set to 01:
Two-code signaling substitution is applied to the received signal-
ing bits. The replaced signaling information is sent to the exter-
nal equipment.
When these bits are set to 10:
Four-code signaling substitution is applied to the received signal-
ing bits. The replaced signaling information is sent to the exter-
nal equipment.
When these bits are set to 11:
Sixteen-code signaling substitution is applied to the received sig-
naling bits. The replaced signaling information is sent to the
external equipment.
N
Signaling Extraction Control:
When these bits are set to 00:
The XRT84L38 framer does not extract signaling information
from incoming DS1 payload data.
When these bits are set to 01:
The XRT84L38 framer extracts sixteen-code signaling informa-
tion from incoming DS1 payload data.
When these bits are set to 10:
The XRT84L38 framer extracts four-code signaling information
from incoming DS1 payload data.
When these bits are set to 11:
The XRT84L38 framer extracts two-code signaling information
from incoming DS1 payload data.
OTE
133
: In SF mode, this option is disabled.
B
IT
D
ESCRIPTION
OCTAL T1/E1/J1 FRAMER
XRT84L38