DS2155 datasheet(3/240 Pages) MAXIM

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DS2155

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12.

I/O PIN CONFIGURATION OPTIONS.................................................................................................71

13.

LOOPBACK CONFIGURATION ..........................................................................................................73

13.1

PER-CHANNEL LOOPBACK ......................................................................................................................75

14.

ERROR COUNT REGISTERS ...............................................................................................................77

14.1

LINE-CODE VIOLATION COUNT REGISTER (LCVCR).............................................................................78

14.1.1

T1 Operation.......................................................................................................................................78

14.1.2

E1 Operation.......................................................................................................................................78

14.2

PATH CODE VIOLATION COUNT REGISTER (PCVCR) ............................................................................80

14.2.1

T1 Operation.......................................................................................................................................80

14.2.2

E1 Operation.......................................................................................................................................80

14.3

FRAMES OUT-OF-SYNC COUNT REGISTER (FOSCR)..............................................................................81

14.3.1

T1 Operation.......................................................................................................................................81

14.3.2

E1 Operation.......................................................................................................................................81

14.4

E-BIT COUNTER (EBCR).........................................................................................................................82

15.

DS0 MONITORING FUNCTION ...........................................................................................................83

16.

SIGNALING OPERATION .....................................................................................................................85

16.1

RECEIVE SIGNALING ...............................................................................................................................85

16.1.1

Processor-Based Signaling.................................................................................................................85

16.1.2

Hardware-Based Receive Signaling ...................................................................................................86

16.2

TRANSMIT SIGNALING.............................................................................................................................91

16.2.1

Processor-Based Mode .......................................................................................................................91

16.2.2

Software Signaling Insertion-Enable Registers, E1 CAS Mode..........................................................95

16.2.3

Software Signaling Insertion-Enable Registers, T1 Mode..................................................................97

16.2.4

Hardware-Based Mode.......................................................................................................................97

17.

PER-CHANNEL IDLE CODE GENERATION ....................................................................................98

17.1

IDLE-CODE PROGRAMMING EXAMPLES..................................................................................................99

18.

CHANNEL BLOCKING REGISTERS ................................................................................................103

19.

ELASTIC STORES OPERATION........................................................................................................106

19.1

RECEIVE SIDE ........................................................................................................................................109

19.1.1

T1 Mode ............................................................................................................................................109

19.1.2

E1 Mode............................................................................................................................................109

19.2

TRANSMIT SIDE .....................................................................................................................................109

19.2.1

T1 Mode ............................................................................................................................................110

19.2.2

E1 Mode............................................................................................................................................110

19.3

ELASTIC STORES INITIALIZATION .........................................................................................................110

19.4

MINIMUM DELAY MODE .......................................................................................................................110

20.

G.706 INTERMEDIATE CRC-4 UPDATING (E1 MODE ONLY)...................................................111

21.

T1 BIT-ORIENTED CODE (BOC) CONTROLLER..........................................................................112

21.1

TRANSMIT BOC.....................................................................................................................................112

Transmit a BOC ..............................................................................................................................................112

21.2

RECEIVE BOC .......................................................................................................................................112

Receive a BOC ................................................................................................................................................112

22.

ADDITIONAL (SA) AND INTERNATIONAL (SI) BIT OPERATION (E1 ONLY) ......................115

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