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DS2155 Datasheet(PDF) 153 Page - Dallas Semiconductor

Part # DS2155
Description  T1/E1/J1 Single-Chip Transceiver
PDF  238 Pages
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Manufacturer  DALLAS [Dallas Semiconductor]
Direct Link  https://www.maximintegrated.com/en.html
Logo DALLAS - Dallas Semiconductor

DS2155 Datasheet(HTML) 153 Page - Dallas Semiconductor

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Register Name:
INFO2
Register Description:
Information Register 2
Register Address:
11h
Bit #
7
6
5
4
3
2
1
0
Name
BSYNC
BD
TCLE
TOCD
RL3
RL2
RL1
RL0
Default
0
0
0
0
0
0
0
0
Bits 0 to 3/Receive Level Bits (RL0 to RL3). Real-time bits
RL3
RL2
RL1
RL0
Receive Level (dB)
0
0
0
0
Greater than -2.5
0
0
0
1
-2.5 to -5.0
0
0
1
0
-5.0 to -7.5
0
0
1
1
-7.5 to -10.0
0
1
0
0
-10.0 to -12.5
0
1
0
1
-12.5 to -15.0
0
1
1
0
-15.0 to -17.5
0
1
1
1
-17.5 to -20.0
1
0
0
0
-20.0 to -22.5
1
0
0
1
-22.5 to -25.0
1
0
1
0
-25.0 to -27.5
1
0
1
1
-27.5 to -30.0
1
1
0
0
-30.0 to -32.5
1
1
0
1
-32.5 to -35.0
1
1
1
0
-35.0 to -37.5
1
1
1
1
Less than -37.5
NOTE: RL0 through RL3 only indicate the signal range as specified by the EGL bit in LIC1. Example; if
EGL = 1 and in T1 mode, RL0 through RL3 will only indicate a signal range of >-2.5dB to –15dB even if the
signal is < -15dB.
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.



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