DS2152 Просмотр технического описания (PDF) - Maxim Integrated
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DS2152 Datasheet PDF : 97 Pages
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DS2152
TABLE OF CONTENTS
1 DETAILED DESCRIPTION....................................................................................................6
1.1 INTRODUCTION................................................................................................................................ 6
1.1.1 New Features......................................................................................................................................... 6
1.2 FUNCTIONAL DESCRIPTION .............................................................................................................. 7
1.3 READER’S NOTE.............................................................................................................................. 7
2 PIN DESCRIPTION................................................................................................................9
2.1 TRANSMIT SIDE DIGITAL PINS ........................................................................................................ 11
2.2 RECEIVE SIDE DIGITAL PINS .......................................................................................................... 12
2.3 PARALLEL CONTROL PORT PINS .................................................................................................... 13
2.4 LINE INTERFACE PINS.................................................................................................................... 14
2.5 SUPPLY PINS ................................................................................................................................ 14
3 PARALLEL PORT ...............................................................................................................18
4 CONTROL, ID, AND TEST REGISTERS ............................................................................18
4.1 PAYLOAD LOOPBACK..................................................................................................................... 24
4.2 FRAMER LOOPBACK ...................................................................................................................... 24
4.3 PULSE DENSITY ENFORCER........................................................................................................... 24
4.4 LOCAL LOOPBACK ......................................................................................................................... 24
4.5 POWER-UP SEQUENCE ................................................................................................................. 30
4.6 REMOTE LOOPBACK ...................................................................................................................... 30
5 STATUS AND INFORMATION REGISTERS ......................................................................31
6 ERROR COUNT REGISTERS.............................................................................................40
6.1 LINE CODE VIOLATION COUNT REGISTER (LCVCR) ....................................................................... 40
6.2 PATH CODE VIOLATION COUNT REGISTER (PCVCR)...................................................................... 41
6.3 MULTIFRAMES OUT OF SYNC COUNT REGISTER (MOSCR) ............................................................ 41
7 DS0 MONITORING FUNCTION ..........................................................................................43
8 SIGNALING OPERATION...................................................................................................47
8.1 PROCESSOR-BASED SIGNALING .................................................................................................... 47
8.2 HARDWARE-BASED SIGNALING ...................................................................................................... 49
8.2.1 Receive Side ........................................................................................................................................ 49
8.2.2 Transmit Side ....................................................................................................................................... 49
9 PER-CHANNEL CODE (IDLE) GENERATION AND LOOPBACK .....................................50
9.1 TRANSMIT SIDE CODE GENERATION .............................................................................................. 50
9.1.1 Simple Idle Code Insertion and Per-Channel Loopback...................................................................... 50
9.1.2 Per-Channel Code Insertion ................................................................................................................ 51
9.2 RECEIVE SIDE CODE GENERATION ................................................................................................ 52
9.2.1 Simple Code Insertion.......................................................................................................................... 52
9.2.2 Per-Channel Code Insertion ................................................................................................................ 52
10 CLOCK BLOCKING REGISTERS....................................................................................54
11 ELASTIC STORES OPERATION.....................................................................................55
11.1
11.2
11.3
RECEIVE SIDE............................................................................................................................ 55
TRANSMIT SIDE.......................................................................................................................... 55
MINIMUM DELAY SYNCHRONOUS RSYSCLK/TSYSCLK MODE................................................... 56
12 FDL/FS EXTRACTION AND INSERTION ........................................................................57
12.1 HDLC AND BOC CONTROLLER FOR THE FDL............................................................................. 57
12.1.1 Status Register for the FDL ................................................................................................................. 57
12.1.2 Basic Operation Details........................................................................................................................ 58
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