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DS3171 Datasheet(PDF) 4 Page - Dallas Semiconductor |
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DS3171 Datasheet(HTML) 4 Page - Dallas Semiconductor |
4 / 232 page DS3171/DS3172/DS3173/DS3174 4 of 230 TABLE OF CONTENTS 1 BLOCK DIAGRAMS 3 2 APPLICATIONS 12 3 FEATURE DETAILS 13 3.1 GLOBAL FEATURES........................................................................................................................................ 13 3.2 RECEIVE DS3/E3 LIU FEATURES .................................................................................................................. 13 3.3 RECEIVE DS3/E3 FRAMER FEATURES ........................................................................................................... 13 3.4 TRANSMIT DS3/E3 FORMATTER FEATURES.................................................................................................... 13 3.5 TRANSMIT DS3/E3 LIU FEATURES ................................................................................................................ 14 3.6 JITTER ATTENUATOR FEATURES..................................................................................................................... 14 3.7 CLOCK RATE ADAPTER FEATURES ................................................................................................................. 14 3.8 HDLC OVERHEAD CONTROLLER FEATURES................................................................................................... 14 3.9 FEAC CONTROLLER FEATURES..................................................................................................................... 14 3.10 TRAIL TRACE BUFFER FEATURES ................................................................................................................... 14 3.11 BIT ERROR RATE TESTER (BERT) FEATURES ................................................................................................ 15 3.12 LOOPBACK FEATURES ................................................................................................................................... 15 3.13 MICROPROCESSOR INTERFACE FEATURES ..................................................................................................... 15 3.14 TEST FEATURES............................................................................................................................................ 15 4 STANDARDS COMPLIANCE 16 5 ACRONYMS AND GLOSSARY 17 6 MAJOR OPERATIONAL MODES 18 6.1 DS3/E3 SCT MODE ..................................................................................................................................... 18 6.2 DS3/E3 CLEAR CHANNEL MODE ................................................................................................................... 20 7 MAJOR LINE INTERFACE OPERATING MODES 21 7.1 DS3HDB3/B3ZS/AMI LIU MODE ................................................................................................................. 21 7.2 HDB3/B3ZS/AMI NON-LIU LINE INTERFACE MODE ....................................................................................... 23 7.3 UNI LINE INTERFACE MODE........................................................................................................................... 24 8 PIN DESCRIPTIONS 25 8.1 SHORT PIN DESCRIPTIONS............................................................................................................................. 25 8.2 DETAILED PIN DESCRIPTIONS......................................................................................................................... 28 8.3 PIN FUNCTIONAL TIMING................................................................................................................................36 8.3.1 Line IO.................................................................................................................................................. 36 8.3.2 DS3/E3 Framing Overhead Functional Timing .................................................................................... 39 8.3.3 DS3/E3 Serial Data Interface............................................................................................................... 40 8.3.4 Microprocessor Interface Functional Timing ........................................................................................ 42 8.3.5 JTAG Functional Timing....................................................................................................................... 47 9 INITIALIZATION AND CONFIGURATION 48 9.1 MONITORING AND DEBUGGING ....................................................................................................................... 49 10 FUNCTIONAL DESCRIPTION 50 10.1 PROCESSOR BUS INTERFACE......................................................................................................................... 50 10.1.1 8/16 Bit Bus Widths.............................................................................................................................. 50 10.1.2 Ready Signal ( RDY) ............................................................................................................................. 50 10.1.3 Byte Swap Modes ................................................................................................................................ 50 10.1.4 Read-Write / Data Strobe Modes......................................................................................................... 50 10.1.5 Clear on Read / Clear on Write Modes ................................................................................................ 50 10.1.6 Global Write Method ............................................................................................................................ 51 10.1.7 Interrupt and Pin Modes....................................................................................................................... 51 10.1.8 Interrupt Structure ................................................................................................................................ 51 10.2 CLOCKS ........................................................................................................................................................ 52 10.2.1 Line Clock Modes................................................................................................................................. 52 |
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