
DS21352/DS21552
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10.
SIGNALING OPERATION..........................................................................................................58
10.1 PROCESSOR-BASED SIGNALING....................................................................................58
10.2 HARDWARD-BASED SIGNALING ...................................................................................60
10.2.1 Receive Side.................................................................................................................60
10.2.2 Transmit Side...............................................................................................................61
PER-CHANNEL CODE (IDLE) GENERATION......................................................................61
11.1 TRANSMIT SIDE CODE GENERATION...........................................................................62
11.1.1 Fixed Per-Channel Idle Code Insertion......................................................................62
11.1.2 Unique Per-Channel Idle Code Insertion....................................................................63
11.2 RECEIVE SIDE CODE GENERATION...............................................................................63
11.2.1 Fixed Per-Channel Idle Code Insertion......................................................................64
11.2.3 Unique Per-Channel Idle Code Insertion....................................................................64
PER-CHANNEL LOOPBACK.....................................................................................................65
CLOCK BLOCKING REGISTERS............................................................................................65
ELASTIC STORES OPERATION..............................................................................................66
14.1 RECEIVE SIDE .....................................................................................................................66
14.2 TRANSMIT SIDE..................................................................................................................67
14.3 ELASTIC STORES INITIALIZATION................................................................................67
14.4 MINIMUM DELAY MODE..................................................................................................67
HDLC CONTROLLER.................................................................................................................68
15.1 HDLC FOR DS0S..................................................................................................................68
15.1.1 Receive an HDLC Message.........................................................................................68
15.1.2 Transmit an HDLC Message.......................................................................................68
15.2 FDL/Fs EXTRACTION AND INSERTION .........................................................................69
15.3 HDLC and BOC CONTROLLER FOR THE FDL................................................................69
15.3.1 General Overview........................................................................................................69
15.3.2 Status Register for the HDLC......................................................................................70
15.3.3 Basic Operation Details..............................................................................................71
15.3.4 HDLC/BOC Register Description...............................................................................72
15.4 LEGACY FDL SUPPORT.....................................................................................................82
15.4.1 Overview......................................................................................................................82
15.4.2 Receive Section............................................................................................................82
15.4.3 Transmit Section..........................................................................................................84
15.5 D4/SLC-96 OPERATION......................................................................................................84
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