DS2155LNB+ Maxim Integrated Products, DS2155LNB+ Datasheet - Page 53
DS2155LNB+
Manufacturer Part Number
DS2155LNB+
Description
IC TXRX T1/E1/J1 SGL 100-LQFP
Manufacturer
Maxim Integrated Products
Datasheet
1.DS2155L.pdf
(238 pages)
Specifications of DS2155LNB+
Function
Single-Chip Transceiver
Interface
E1, HDLC, J1, T1
Number Of Circuits
1
Voltage - Supply
3.14 V ~ 3.47 V
Current - Supply
75mA
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
100-LQFP
Includes
BERT Generator and Detector, CMI Coder and Decoder, HDLC Controller
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Power (watts)
-
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Register Name:
Register Description:
Register Address:
Bit #
Name
Default
Bit 0/Frame Bit-Error Event (FBE). Set when an Ft (D4) or FPS (ESF) framing bit is received in error.
Bit 1/B8ZS Codeword Detect Event (B8ZS). Set when a B8ZS codeword is detected at RPOS and RNEG
independent of whether the B8ZS mode is selected or not by T1TCR2.7. Useful for automatically setting the line
coding.
Bit 2/Severely Errored Framing Event (SEFE). Set when two out of six framing bits (Ft or FPS) are received in
error.
Bit 3/Sixteen Zero-Detect Event (16ZD). Set when a string of at least 16 consecutive 0s (regardless of the length
of the string) have been received at RPOSI and RNEGI.
Bit 4/Eight Zero-Detect Event (8ZD). Set when a string of at least eight consecutive 0s (regardless of the length
of the string) have been received at RPOSI and RNEGI.
Bit 5/Change-of-Frame Alignment Event (COFA). Set when the last resync resulted in a change-of-frame or
multiframe alignment.
Bit 6/Transmit Pulse-Density Violation Event (TPDV). Set when the transmit data stream does not meet the
ANSI T1.403 requirements for pulse density.
Bit 7/Receive Pulse-Density Violation Event (RPDV). Set when the receive data stream does not meet the ANSI
T1.403 requirements for pulse density.
RPDV
7
0
TPDV
INFO1
Information Register 1
10h
6
0
COFA
5
0
8ZD
4
0
53 of 238
16ZD
3
0
SEFE
2
0
B8ZS
1
0
FBE
0
0
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