DS2155LC2+ Maxim Integrated Products, DS2155LC2+ Datasheet - Page 173
DS2155LC2+
Manufacturer Part Number
DS2155LC2+
Description
IC TXRX T1/E1/J1 SGL 100-LQFP
Manufacturer
Maxim Integrated Products
Datasheet
1.DS2155L.pdf
(238 pages)
Specifications of DS2155LC2+
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
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/Repetitive Pattern Length Bit 3 (RPL0 to RPL3). RPL0 is the LSB and RPL3 is the MSB of a nibble
that describes how long the repetitive pattern is. The valid range is 17 (0000) to 32 (1111). These bits are ignored if
the receive BERT is programmed for a pseudorandom pattern. To create repetitive patterns fewer than 17 bits in
length, the user must set the length to an integer number of the desired length that is less than or equal to 32. For
example, to create a 6-bit pattern, the user can set the length to 18 (0001) or to 24 (0111) or to 30 (1101).
Bit 4/Single Bit-Error Insert (SBE). A low-to-high transition creates a single-bit error. Must be cleared and set
again for a subsequent bit error to be inserted.
Bits 5 to 7/Error Insert Bits 0 to 2 (EIB0 to EIB2). Automatically inserts bit errors at the prescribed rate into the
generated data pattern. Can be used for verifying error-detection features.
EIB2
Length
(bits)
0
0
0
0
1
1
1
1
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
EIB1
EIB2
0
0
1
1
0
0
1
1
7
0
RPL3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
EIB0
EIB1
0
1
0
1
0
1
0
1
BC2
BERT Control Register 2
E1h
6
0
RPL2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
No errors automatically inserted
10E-1
10E-2
10E-3
10E-4
10E-5
10E-6
10E-7
EIB0
RPL1
5
0
Error Rate Inserted
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
RPL0
SBE
4
0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
173 of 238
RPL3
3
0
RPL2
2
0
RPL1
1
0
RPL0
0
0
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