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DS2155 Datasheet(PDF) 209 Page - Dallas Semiconductor

Part # DS2155
Description  T1/E1/J1 Single-Chip Transceiver TDM/UTOPIA II Interface
PDF  262 Pages
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Manufacturer  DALLAS [Dallas Semiconductor]
Direct Link  https://www.maximintegrated.com/en.html
Logo DALLAS - Dallas Semiconductor

DS2155 Datasheet(HTML) 209 Page - Dallas Semiconductor

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DS2156
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Register Name:
BIC
Register Description:
BERT Interface Control Register
Register Address:
EAh
Bit #
7
6
5
4
3
2
1
0
Name
—
RFUS
—
TBAT
TFUS
—
BERTDIR
BERTEN
Default
0
0
0
0
0
0
0
0
Bit 0/BERT Enable (BERTEN)
0 = BERT disabled
1 = BERT enabled
Bit 1/BERT Direction (BERTDIR)
0 = network
BERT transmits toward the network (TTIP and TRING) and receives from the network (RTIP and
RRING). The BERT pattern can be looped back to the receiver internally by using the framer loopback
function.
1 = system
BERT transmits toward the system backplane (RSER) and receives from the system backplane (TSER).
Bits 2, 5, 7/Unused, must be set to 0 for proper operation
Bit 3/Transmit Framed/Unframed Select (TFUS)
0 = BERT does not source data into the F-bit position (framed)
1 = BERT does source data into the F-bit position (unframed)
Bit 4/Transmit Byte-Align Toggle (TBAT). A 0-to-1 transition forces the BERT to byte align its pattern with the
transmit formatter. This bit must be transitioned in order to byte align the Daly pattern.
Bit 6/Receive Framed/Unframed Select (RFUS)
0 = BERT is not sent data from the F-bit position (framed)
1 = BERT is sent data from the F-bit position (unframed)



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