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DS2155 Datasheet(PDF) 39 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) 39 Page - Dallas Semiconductor

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6. PROGRAMMING MODEL
The DS2155 register map is divided into three groups: T1 specific features, E1 specific features, and
common features. The typical programming sequence begins with issuing a reset to the DS2155, selecting
T1 or E1 operation in the master mode register, enabling T1 or E1 functions and enabling the common
functions. The act of resetting the DS2155 automatically clears all configuration and status registers.
Therefore, it is not necessary to load unused registers with 0s.
Figure 6-1. Programming Sequence
POWER-ON
ISSUE RESET
SELECT T1 OR E1 OPERATION
IN MASTER MODE REGISTER
PROGRAM T1 SPECIFIC REGISTERS
PROGRAM E1 SPECIFIC REGISTERS
PROGRAM COMMON REGISTERS
DS2155 OPERATIONAL



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