Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.NET

X  

XRT75R12DIB Datasheet(PDF) 5 Page - Exar Corporation

Part # XRT75R12DIB
Description  TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER
Download  131 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  EXAR [Exar Corporation]
Direct Link  http://www.exar.com
Logo EXAR - Exar Corporation

XRT75R12DIB Datasheet(HTML) 5 Page - Exar Corporation

  XRT75R12DIB Datasheet HTML 1Page - Exar Corporation XRT75R12DIB Datasheet HTML 2Page - Exar Corporation XRT75R12DIB Datasheet HTML 3Page - Exar Corporation XRT75R12DIB Datasheet HTML 4Page - Exar Corporation XRT75R12DIB Datasheet HTML 5Page - Exar Corporation XRT75R12DIB Datasheet HTML 6Page - Exar Corporation XRT75R12DIB Datasheet HTML 7Page - Exar Corporation XRT75R12DIB Datasheet HTML 8Page - Exar Corporation XRT75R12DIB Datasheet HTML 9Page - Exar Corporation Next Button
Zoom Inzoom in Zoom Outzoom out
 5 / 131 page
background image
XRT75R12D
TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER
PRELIMINARY
REV. P1.0.1
III
TABLE 22: THE ABOVE IS: CHANNEL LEVEL INTERRUPT STATUS REGISTER - CR97 (ADDRESS LOCATION = 0X61) .................................. 63
TABLE 23: CHANNEL LEVEL INTERRUPT STATUS REGISTER - CR225 (ADDRESS LOCATION = 0XE1)....................................................... 63
TABLE 24: DEVICE/PART NUMBER REGISTER - CR110 (ADDRESS LOCATION = 0X6E) ........................................................................... 64
TABLE 25: CHIP REVISION NUMBER REGISTER - CR111 (ADDRESS LOCATION = 0X6F) ......................................................................... 64
THE PER-CHANNEL REGISTERS........................................................................................................................... 65
REGISTER DESCRIPTION - PER CHANNEL REGISTERS ....................................................................................66
TABLE 26: XRT75R12D REGISTER MAP SHOWING INTERRUPT ENABLE REGISTERS (IER_N) ............................................................... 66
TABLE 27: SOURCE LEVEL INTERRUPT ENABLE REGISTER - CHANNEL N ADDRESS LOCATION = 0XM1 .................................................... 66
TABLE 28: XRT75R12D REGISTER MAP SHOWING INTERRUPT STATUS REGISTERS (ISR_N) ............................................................... 68
TABLE 29: SOURCE LEVEL INTERRUPT STATUS REGISTER - CHANNEL N ADDRESS LOCATION = 0XM2 .................................................... 68
TABLE 30: XRT75R12D REGISTER MAP SHOWING ALARM STATUS REGISTERS (AS_N)........................................................................ 70
TABLE 31: ALARM STATUS REGISTER - CHANNEL N ADDRESS LOCATION = 0XM3................................................................................... 70
TABLE 32: XRT75R12D REGISTER MAP SHOWING TRANSMIT CONTROL REGISTERS (TC_N) ................................................................ 74
TABLE 33: TRANSMIT CONTROL REGISTER - CHANNEL N ADDRESS LOCATION = 0XM4 ........................................................................... 74
TABLE 34: XRT75R12D REGISTER MAP SHOWING RECEIVE CONTROL REGISTERS (RC_N).................................................................. 76
TABLE 35: RECEIVE CONTROL REGISTER - CHANNEL N ADDRESS LOCATION = 0XM5 ............................................................................. 76
TABLE 36: XRT75R12D REGISTER MAP SHOWING CHANNEL CONTROL REGISTERS (CC_N)................................................................. 77
TABLE 37: CHANNEL CONTROL REGISTER - CHANNEL N ADDRESS LOCATION = 0XM6 ............................................................................ 77
TABLE 38: XRT75R12D REGISTER MAP SHOWING JITTER ATTENUATOR CONTROL REGISTERS (JA_N)................................................. 80
TABLE 39: JITTER ATTENUATOR CONTROL REGISTER - CHANNEL N ADDRESS LOCATION = 0XM7 ........................................................... 80
TABLE 40: XRT75R12D REGISTER MAP SHOWING ERROR COUNTER MSBYTE REGISTERS (EM_N) ..................................................... 81
TABLE 41: ERROR COUNTER MSBYTE REGISTER - CHANNEL N ADDRESS LOCATION = 0XMA................................................................. 81
TABLE 42: XRT75R12D REGISTER MAP SHOWING ERROR COUNTER LSBYTE REGISTERS (EL_N) ....................................................... 82
TABLE 43: ERROR COUNTER LSBYTE REGISTER - CHANNEL N ADDRESS LOCATION = 0XMB.................................................................. 82
TABLE 44: XRT75R12D REGISTER MAP SHOWING ERROR COUNTER HOLDING REGISTERS (EH_N) ..................................................... 82
TABLE 45: ERROR COUNTER HOLDING REGISTER - CHANNEL N ADDRESS LOCATION = 0XMC ................................................................ 83
8.0 THE SONET/SDH DE-SYNC FUNCTION WITHIN THE LIU ............................................................... 85
8.1 BACKGROUND AND DETAILED INFORMATION - SONET DE-SYNC APPLICATIONS ........................... 85
FIGURE 37. A SIMPLE ILLUSTRATION OF A DS3 SIGNAL BEING MAPPED INTO AND TRANSPORTED OVER THE SONET NETWORK ............... 86
8.2 MAPPING/DE-MAPPING JITTER/WANDER ................................................................................................. 87
8.2.1 HOW DS3 DATA IS MAPPED INTO SONET ............................................................................................................. 87
FIGURE 38. A SIMPLE ILLUSTRATION OF THE SONET STS-1 FRAME ..................................................................................................... 88
FIGURE 39. A SIMPLE ILLUSTRATION OF THE STS-1 FRAME STRUCTURE WITH THE TOH AND THE ENVELOPE CAPACITY BYTES DESIGNATED
89
FIGURE 40. THE BYTE-FORMAT OF THE TOH WITHIN AN STS-1 FRAME................................................................................................. 90
FIGURE 41. THE BYTE-FORMAT OF THE TOH WITHIN AN STS-1 FRAME................................................................................................. 91
FIGURE 42. ILLUSTRATION OF THE BYTE STRUCTURE OF THE STS-1 SPE ............................................................................................. 92
FIGURE 43. AN ILLUSTRATION OF TELCORDIA GR-253-CORE’S RECOMMENDATION ON HOW MAP DS3 DATA INTO AN STS-1 SPE ......... 93
FIGURE 44. A SIMPLIFIED "BIT-ORIENTED" VERSION OF TELCORDIA GR-253-CORE’S RECOMMENDATION ON HOW TO MAP DS3 DATA INTO AN
STS-1 SPE.......................................................................................................................................................................... 93
8.2.2 DS3 FREQUENCY OFFSETS AND THE USE OF THE "STUFF OPPORTUNITY" BITS ......................................... 94
FIGURE 45. A SIMPLE ILLUSTRATION OF A DS3 DATA-STREAM BEING MAPPED INTO AN STS-1 SPE, VIA A PTE .................................... 95
FIGURE 46. AN ILLUSTRATION OF THE STS-1 SPE TRAFFIC THAT WILL BE GENERATED BY THE "SOURCE" PTE, WHEN MAPPING IN A DS3 SIGNAL
THAT HAS A BIT RATE OF
44.736MBPS + 1PPM, INTO AN STS-1 SIGNAL .................................................................................. 96
8.3
JITTER/WANDER DUE TO POINTER ADJUSTMENTS .............................................................................. 98
8.3.1 THE CONCEPT OF AN STS-1 SPE POINTER........................................................................................................... 98
FIGURE 47. AN ILLUSTRATION OF THE STS-1 SPE TRAFFIC THAT WILL BE GENERATED BY THE SOURCE PTE, WHEN MAPPING A DS3 SIGNAL
THAT HAS A BIT RATE OF
44.736MBPS - 1PPM, INTO AN STS-1 SIGNAL................................................................................... 98
FIGURE 48. AN ILLUSTRATION OF AN STS-1 SPE STRADDLING ACROSS TWO CONSECUTIVE STS-1 FRAMES ........................................... 99
8.3.2 POINTER ADJUSTMENTS WITHIN THE SONET NETWORK ................................................................................ 100
FIGURE 49. THE BIT-FORMAT OF THE 16-BIT WORD (CONSISTING OF THE H1 AND H2 BYTES) WITH THE 10 BITS, REFLECTING THE LOCATION OF
THE
J1 BYTE, DESIGNATED .................................................................................................................................................. 100
FIGURE 50. THE RELATIONSHIP BETWEEN THE CONTENTS OF THE "POINTER BITS" (E.G., THE 10-BIT EXPRESSION WITHIN THE H1 AND H2 BYTES)
AND THE
LOCATION OF THE J1 BYTE WITHIN THE ENVELOPE CAPACITY OF AN STS-1 FRAME ................................................ 100
8.3.3 CAUSES OF POINTER ADJUSTMENTS ................................................................................................................. 101
FIGURE 51. AN ILLUSTRATION OF AN STS-1 SIGNAL BEING PROCESSED VIA A SLIP BUFFER.................................................................. 102
FIGURE 52. AN ILLUSTRATION OF THE BIT FORMAT WITHIN THE 16-BIT WORD (CONSISTING OF THE H1 AND H2 BYTES) WITH THE "I" BITS DES-
IGNATED
............................................................................................................................................................................. 103
FIGURE 53. AN ILLUSTRATION OF THE BIT-FORMAT WITHIN THE 16-BIT WORD (CONSISTING OF THE H1 AND H2 BYTES) WITH THE "D" BITS DES-
IGNATED
............................................................................................................................................................................. 104
8.3.4 WHY ARE WE TALKING ABOUT POINTER ADJUSTMENTS? ............................................................................. 105
8.4 CLOCK GAPPING JITTER ........................................................................................................................... 105
FIGURE 54. ILLUSTRATION OF THE TYPICAL APPLICATIONS FOR THE LIU IN A SONET DE-SYNC APPLICATION ...................................... 105
8.5 A REVIEW OF THE CATEGORY I INTRINSIC JITTER REQUIREMENTS (PER TELCORDIA GR-253-CORE)


Similar Part No. - XRT75R12DIB

ManufacturerPart #DatasheetDescription
logo
Exar Corporation
XRT75R12DIB EXAR-XRT75R12DIB Datasheet
2Mb / 134P
   TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET
XRT75R12DIB EXAR-XRT75R12DIB Datasheet
856Kb / 133P
   TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET
More results

Similar Description - XRT75R12DIB

ManufacturerPart #DatasheetDescription
logo
Exar Corporation
XRT75L00D EXAR-XRT75L00D Datasheet
894Kb / 92P
   E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER
XRT75VL00D EXAR-XRT75VL00D Datasheet
836Kb / 92P
   E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER
XRT75R12D EXAR-XRT75R12D_07 Datasheet
856Kb / 133P
   TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET
XRT75R12D EXAR-XRT75R12D_06 Datasheet
2Mb / 134P
   TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET
XRT75L04D EXAR-XRT75L04D Datasheet
935Kb / 98P
   FOUR CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER
XRT75R06D EXAR-XRT75R06D Datasheet
1Mb / 105P
   SIX CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER
XRT75L03D EXAR-XRT75L03D Datasheet
1Mb / 134P
   THREE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER
XRT75L06D EXAR-XRT75L06D Datasheet
1Mb / 103P
   SIX CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER
XRT73R12_0710 EXAR-XRT73R12_0710 Datasheet
513Kb / 89P
   TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT
XRT73R12 EXAR-XRT73R12 Datasheet
766Kb / 87P
   TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100  ...More


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.NET
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com