DS3181/DS3182/DS3183/DS3184
10.7 ATM CELL/HDLC PACKET PROCESSING .....................................................................................139
10.7.1 General Description ........................................................................................................................... 139
10.7.2 Features............................................................................................................................................. 139
10.7.3 Transmit Cell/Packet Processor......................................................................................................... 140
10.7.4 Receive Cell/Packet Processor.......................................................................................................... 141
10.7.5 Cell Processor.................................................................................................................................... 141
10.7.6 Packet Processor............................................................................................................................... 146
10.7.7 FIFO ................................................................................................................................................... 148
10.7.8 System Loopback............................................................................................................................... 149
10.8 DS3/E3 PLCP FRAMER..............................................................................................................150
10.8.1 General Description ........................................................................................................................... 150
10.8.2 Features............................................................................................................................................. 150
10.8.3 Transmit PLCP Frame Processor...................................................................................................... 151
10.8.4 Receive PLCP Frame Processor....................................................................................................... 151
10.8.5 Transmit DS3 PLCP Frame Processor..............................................................................................151
10.8.6 Receive DS3 PLCP Frame Processor...............................................................................................154
10.8.7 Transmit E3 PLCP Frame Processor................................................................................................. 155
10.8.8 Receive E3 PLCP Frame Processor.................................................................................................. 158
10.9 FRACTIONAL PAYLOAD CONTROLLER...........................................................................................160
10.9.1 General Description ........................................................................................................................... 160
10.9.2 Features............................................................................................................................................. 160
10.9.3 Transmit Fractional Interface ............................................................................................................. 161
10.9.4 Transmit Fractional Controller............................................................................................................ 161
10.9.5 Receive Fractional Interface .............................................................................................................. 161
10.9.6 Receive Fractional Controller............................................................................................................. 161
10.10DS3/E3 FRAMER/FORMATTER ....................................................................................................163
10.10.1 General Description ........................................................................................................................... 163
10.10.2 Features............................................................................................................................................. 163
10.10.3 Transmit Formatter............................................................................................................................. 164
10.10.4 Receive Framer.................................................................................................................................. 164
10.10.5 C-bit DS3 Framer/Formatter .............................................................................................................. 168
10.10.6 M23 DS3 Framer/Formatter............................................................................................................... 171
10.10.7 G.751 E3 Framer/Formatter............................................................................................................... 174
10.10.8 G.832 E3 Framer/Formatter............................................................................................................... 176
10.10.9 Clear-Channel Frame Processor ....................................................................................................... 181
10.11HDLC OVERHEAD CONTROLLER .................................................................................................181
10.11.1 General Description ........................................................................................................................... 181
10.11.2 Features............................................................................................................................................. 182
10.11.3 Transmit FIFO.................................................................................................................................... 182
10.11.4 Transmit HDLC Overhead Processor ................................................................................................ 182
10.11.5 Receive HDLC Overhead Processor ................................................................................................. 183
10.11.6 Receive FIFO..................................................................................................................................... 184
10.12TRAIL TRACE CONTROLLER .........................................................................................................184
10.12.1 General Description ........................................................................................................................... 184
10.12.2 Features............................................................................................................................................. 185
10.12.3 Functional Description........................................................................................................................ 185
10.12.4 Transmit Data Storage....................................................................................................................... 186
10.12.5 Transmit Trace ID Processor............................................................................................................. 186
10.12.6 Transmit Trail Trace Processing........................................................................................................ 186
10.12.7 Receive Trace ID Processor.............................................................................................................. 186
10.12.8 Receive Trail Trace Processing......................................................................................................... 186
10.12.9 Receive Data Storage........................................................................................................................ 187
10.13FEAC CONTROLLER ...................................................................................................................188
10.13.1 General Description ........................................................................................................................... 188
10.13.2 Features............................................................................................................................................. 188
10.13.3 Functional Description........................................................................................................................ 188
10.14LINE ENCODER/DECODER ...........................................................................................................190
10.14.1 General Description ........................................................................................................................... 190
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