DS2156L+ Maxim Integrated Products, DS2156L+ Datasheet - Page 158
DS2156L+
Manufacturer Part Number
DS2156L+
Description
IC TXRX T1/E1/J1 1-CHIP 100-LQFP
Manufacturer
Maxim Integrated Products
Datasheet
1.DS2156L.pdf
(265 pages)
Specifications of DS2156L+
Function
Single-Chip Transceiver
Interface
E1, J1, T1, TDM, UTOPIA II
Number Of Circuits
1
Voltage - Supply
3.14 V ~ 3.47 V
Current - Supply
75mA
Operating Temperature
0°C ~ 70°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
Bits 0 to 3/Receive Level Bits (RL0 to RL3). Real-time bits
Bit 4/Transmit Open-Circuit Detect (TOCD). A real-time bit that is set when the device detects that the TTIP
and TRING outputs are open-circuited.
Bit 5/Transmit Current-Limit Exceeded (TCLE). A real-time bit that is set when the 50mA (RMS) current
limiter is activated, whether the current limiter is enabled or not.
Bit 6/BOC Detected (BD). A real-time bit that is set high when the BOC detector is presently seeing a valid
sequence and set low when no BOC is currently being detected.
Bit 7/BERT Real-Time Synchronization Status (BSYNC). Real-time status of the synchronizer (this bit is not
latched). This bit is set when the incoming pattern matches for 32 consecutive bit positions. It is cleared when six
or more bits out of 64 are received in error. Refer to BSYNC in the BERT status register, SR9, for an interrupt-
generating version of this signal.
RL3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
BSYNC
RL2
7
0
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
INFO2
Information Register 2
11h
BD
6
0
RL1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
TCLE
5
0
RL0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
TOCD
4
0
158 of 265
Receive Level (dB)
Greater than -2.5
Less than -37.5
-10.0 to -12.5
-12.5 to -15.0
-15.0 to -17.5
-17.5 to -20.0
-20.0 to -22.5
-22.5 to -25.0
-25.0 to -27.5
-27.5 to -30.0
-30.0 to -32.5
-32.5 to -35.0
-35.0 to -37.5
-7.5 to -10.0
-2.5 to -5.0
-5.0 to -7.5
RL3
3
0
RL2
2
0
RL1
1
0
RL0
0
0
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