DS26401 datasheet(3/309 Pages) DALLAS

3 / 309 page

DS26401 Octal T1/E1/J1 Framer

9.2

T1 TRANSMIT FORMATTER DESCRIPTION AND OPERATION...........................................................................108

9.3

TRANSMIT-MASTER MODE REGISTER..........................................................................................................109

9.4

INTERRUPT INFORMATION REGISTERS .........................................................................................................109

9.5

T1 TRANSMIT CONTROL REGISTERS ...........................................................................................................110

9.6

T1 TRANSMIT STATUS AND INFORMATION....................................................................................................115

9.7

T1 PER-CHANNEL LOOPBACK .....................................................................................................................118

9.8

T1 TRANSMIT DS0 MONITORING FUNCTION ................................................................................................119

9.9

T1 TRANSMIT SIGNALING OPERATION .........................................................................................................120

9.10

T1 TRANSMIT PER-CHANNEL IDLE CODE INSERTION ................................................................................123

9.11

T1 TRANSMIT CHANNEL BLOCKING REGISTERS........................................................................................124

9.12

T1 TRANSMIT ELASTIC STORES OPERATION ............................................................................................125

ELASTIC STORE DELAY AFTER INITIALIZATION ........................................................................................................126

9.13

FRACTIONAL T1 SUPPORT (GAPPED CLOCK MODE) .................................................................................129

9.14

T1 TRANSMIT BIT ORIENTED CODE (BOC) CONTROLLER.........................................................................130

9.15

T1 TRANSMIT FDL..................................................................................................................................131

9.16

TRANSMIT SLC–96 OPERATION ..............................................................................................................132

9.17

TRANSMIT HDLC CONTROLLER...............................................................................................................133

9.18

HDLC TRANSMIT EXAMPLE.....................................................................................................................141

9.19

PROGRAMMABLE IN-BAND LOOP-CODE GENERATOR................................................................................142

9.20

INTERLEAVED PCM BUS OPERATION (IBO) .............................................................................................144

9.21

INTERFACING THE T1 TX FORMATTER TO THE BERT................................................................................146

9.22

T1 TRANSMIT SYNCHRONIZER.................................................................................................................148

10.

E1 RECEIVER ..........................................................................................................................150

10.1

E1 RECEIVER REGISTER MAP .................................................................................................................150

10.2

E1 RECEIVE FRAMER DESCRIPTION AND OPERATION...............................................................................155

10.3

RECEIVE MASTER MODE REGISTER.........................................................................................................156

10.4

INTERRUPT INFORMATION REGISTERS......................................................................................................157

10.5

E1 RECEIVE CONTROL REGISTERS .........................................................................................................158

10.6

H.100 (CT BUS) COMPATIBILITY.............................................................................................................162

10.7

E1 RECEIVE STATUS AND INFORMATION ..................................................................................................164

10.8

E1 ERROR COUNT REGISTERS................................................................................................................175

10.9

DS0 MONITORING FUNCTION ..................................................................................................................181

10.10

E1 RECEIVE SIGNALING OPERATION........................................................................................................182

10.11

E1 RECEIVE PER-CHANNEL IDLE CODE INSERTION ..................................................................................187

10.12

RECEIVE CHANNEL BLOCKING OPERATION...............................................................................................188

10.13

RECEIVE ELASTIC STORES OPERATION ...................................................................................................189

ELASTIC STORE DELAY AFTER INITIALIZATION ........................................................................................................192

10.14

FRACTIONAL E1 SUPPORT (GAPPED CLOCK MODE).................................................................................193

10.15

ADDITIONAL SA-BIT AND SI-BIT RECEIVE OPERATION (E1 MODE).............................................................194

10.16

RECEIVE HDLC CONTROLLER.................................................................................................................200

HDLC RECEIVE EXAMPLE .....................................................................................................................................207

10.17

INTERLEAVED PCM BUS OPERATION (IBO) .............................................................................................208

10.18

INTERFACING THE E1 RX FRAMER TO THE BERT .....................................................................................210

11.

E1 TRANSMIT..........................................................................................................................212

11.1

E1 TRANSMIT REGISTER MAP .................................................................................................................212

11.2

E1 TRANSMIT FORMATTER DESCRIPTION AND OPERATION .......................................................................216

11.3

TRANSMIT MASTER MODE REGISTER.......................................................................................................217

11.4

INTERRUPT INFORMATION REGISTERS......................................................................................................218

11.5

E1 TRANSMIT CONTROL REGISTERS .......................................................................................................219

11.6

AUTOMATIC ALARM GENERATION ............................................................................................................221

11.7

G.706 INTERMEDIATE CRC-4 UPDATING (E1 MODE ONLY)......................................................................223

11.8

E1 TRANSMIT STATUS AND INFORMATION ................................................................................................225

11.9

PER-CHANNEL LOOPBACK.......................................................................................................................228

11.10

E1 TRANSMIT DS0 MONITORING FUNCTION.............................................................................................229

11.11

E1 TRANSMIT SIGNALING OPERATION......................................................................................................230

11.12

E1 TRANSMIT PER-CHANNEL IDLE CODE INSERTION ................................................................................233

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