
LXT6251A
—
21 E1 SDH Mapper
6
Datasheet
Tables
1
2
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5
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7
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9
10
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15
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19
Signal Description Nomenclature..........................................................................9
Pin Descriptions....................................................................................................9
Power, Ground, and No Connects......................................................................15
Enhanced RDI Interpretation...............................................................................23
Enhanced RDI Generation..................................................................................28
Multiplex Telecom Bus Drive Matrix....................................................................32
E1 Port Time Slot Assignment ............................................................................34
Absolute Maximum Ratings ................................................................................42
Operating Conditions ..........................................................................................42
5 V Digital I/O Characteristics.............................................................................42
Tributary Timing Parameters...............................................................................43
Receive Telecom Bus Timing Parameters..........................................................44
Transmit Telecom Bus Timing - Terminal Parameters........................................45
Transmit Telecom Bus Timing - ADM Parameters..............................................46
Microprocessor Data Read Timing Parameters..................................................47
Microprocessor Data Write Timing Parameters ..................................................49
Register Address Map.........................................................................................54
JTAG Pin Description..........................................................................................66
JTAG Scan Chain ...............................................................................................70