DS21Q44T datasheet(4/105 Pages) DALLAS

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DS21Q44T Datasheet(PDF) 4 Page - Dallas Semiconductor

Part #	DS21Q44T

Description	Enhanced QUAD E1 FRAMER

Download	105 Pages

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Manufacturer	DALLAS [Dallas Semiconductor]

Direct Link	https://www.maximintegrated.com/en.html

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DS21Q44

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TABLE OF CONTENTS

1. INTRODUCTION .............................................................................................................................. 2

2. DS21Q44 PIN DESCRIPTION ......................................................................................................... 7

3. DS21Q44 PIN FUNCTION DESCRIPTION ................................................................................ 13

4. DS21Q44 REGISTER MAP............................................................................................................. 20

5. PARALLEL PORT........................................................................................................................... 24

6. CONTROL, ID AND TEST REGISTERS ..................................................................................... 24

7. STATUS AND INFORMATION REGISTERS............................................................................. 34

8. ERROR COUNT REGISTERS....................................................................................................... 40

9. DS0 MONITORING FUNCTION................................................................................................... 43

10. SIGNALING OPERATION ............................................................................................................45

10.1 PROCESSOR BASED SIGNALING........................................................................................ 45

10.2 HARDWARE BASED SIGNALING........................................................................................ 48

11. PER–CHANNEL CODE GENERATION AND LOOPBACK ................................................... 49

11.1 TRANSMIT SIDE CODE GENERATION............................................................................... 49

11.1.1 Simple Idle Code Insertion and Per-Channel Loopback................................................... 49

11.1.2 Per-Channel Code Insertion .............................................................................................. 50

11.2 RECEIVE SIDE CODE GENERATION .................................................................................. 51

12. CLOCK BLOCKING REGISTERS ............................................................................................... 52

13. ELASTIC STORES OPERATION ................................................................................................ 53

13.1 RECEIVE SIDE ......................................................................................................................... 54

13.2 TRANSMIT SIDE ..................................................................................................................... 54

14. ADDITIONAL (SA) AND INTERNATIONAL (SI) BIT OPERATION .................................... 54

14.1 HARDWARE SCHEME ........................................................................................................... 54

14.2 INTERNAL REGISTER SCHEME BASED ON DOUBLE-FRAME ..................................... 55

14.3 INTERNAL REGISTER SCHEME BASED ON CRC4 MULTIFRAME ............................... 57

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Manufacturer	Part #	Datasheet	Description
Maxim Integrated Produc...	DS21Q44T	708Kb / 105P	Enhanced Quad E1 Framer 062602
Maxim Integrated Produc...	DS21Q44TN	708Kb / 105P	Enhanced Quad E1 Framer 062602

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Similar Description - DS21Q44T

Manufacturer	Part #	Datasheet	Description
Maxim Integrated Produc...	DS21Q44	708Kb / 105P	Enhanced Quad E1 Framer 062602
Maxim Integrated Produc...	DS21Q43A	748Kb / 60P	Quad E1 Framer 092299
Dallas Semiconductor	DS21Q43A	748Kb / 60P	Quad E1 Framer
PMC-Sierra, Inc	PM6344	67Kb / 2P	Quad E1 Framer
Maxim Integrated Produc...	DS21Q42	954Kb / 116P	Enhanced Quad T1 Framer 062602
Dallas Semiconductor	DS21Q42	1Mb / 119P	Enhanced QUAD T1 FRAMER
Exar Corporation	XRT86VL34	2Mb / 174P	QUAD T1/E1/J1 FRAMER/LIU COMBO - E1 REGISTER DESCRIPTION
Exar Corporation	XRT86VL34	2Mb / 175P	QUAD T1/E1/J1 FRAMER/LIU COMBO - E1 REGISTER DESCRIPTION
PMC-Sierra, Inc	PM6344	1Mb / 2P	QUADRUPLE E1 FRAMER
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