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XRT86SH221IB Datasheet(PDF) 6 Page - Exar Corporation |
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XRT86SH221IB Datasheet(HTML) 6 Page - Exar Corporation |
6 / 353 page XRT86SH221 PRELIMINARY III SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU REV. P1.0.5 FIGURE 47. TAOS (TRANSMIT ALL ONES) ...................................................................................................................................... 99 5.1.3 ATAOS (AUTOMATIC TRANSMIT ALL ONES)........................................................................................................... 99 FIGURE 48. SIMPLIFIED BLOCK DIAGRAM OF THE ATAOS FUNCTION............................................................................................... 99 5.1.4 QRSS/PRBS GENERATION....................................................................................................................................... 100 5.1.5 TRANSMIT PULSE SHAPER AND FILTER ............................................................................................................... 100 5.1.6 DMO (DIGITAL MONITOR OUTPUT) ......................................................................................................................... 100 5.2 LINE TERMINATION (TTIP/TRING) ................................................................................................................ 100 FIGURE 49. TYPICAL CONNECTION DIAGRAM USING INTERNAL TERMINATION ................................................................................. 100 5.3 RECEIVE PATH LINE INTERFACE ................................................................................................................ 101 FIGURE 50. SIMPLIFIED BLOCK DIAGRAM OF THE RECEIVE PATH .................................................................................................. 101 5.3.1 LINE TERMINATION (RTIP/RRING)........................................................................................................................... 101 FIGURE 51. TYPICAL CONNECTION DIAGRAM USING INTERNAL TERMINATION ................................................................................ 101 5.3.2 CLOCK AND DATA RECOVERY .............................................................................................................................. 102 FIGURE 52. RECOVERED LINE CLOCK PLL TIMING........................................................................................................................ 102 5.3.3 RECOVERED LINE CLOCK OUTPUTS ..................................................................................................................... 102 FIGURE 53. REF_REC[1:0] RECOVERED LINE CLOCK SELECTION TO OUTPUT PINS ..................................................................... 102 5.3.4 RLOS (RECEIVER LOSS OF SIGNAL)...................................................................................................................... 103 5.3.5 EXLOS (EXTENDED LOSS OF SIGNAL) .................................................................................................................. 103 5.3.6 JITTER ATTENUATOR ............................................................................................................................................... 103 5.3.7 RXMUTE (RECEIVER LOS WITH DATA MUTING) ................................................................................................... 103 FIGURE 54. SIMPLIFIED BLOCK DIAGRAM OF THE RXMUTE FUNCTION .......................................................................................... 103 6.0 MEMORY AND REGISTER MAP......................................................................................................... 104 6.1 MEMORY MAPPED I/O ADDRESSING .......................................................................................................... 104 TABLE 15: CHANNEL MAPPING SCHEME ....................................................................................................................................... 104 6.2 OVERVIEW OF CONTROL REGISTERS........................................................................................................ 104 TABLE 16: MEMORY MAP - E1 FRAMERS ...................................................................................................................................... 104 6.3 SDH OPERATION CONTROL REGISTER DESCRIPTIONS.......................................................................... 105 TABLE 17: INTERRUPT TYPE SELECT (ITS 0X0001H) ................................................................................................................... 105 TABLE 18: RECEIVE STM CLOCK DETECT (RSTMCD 0X0003H) ................................................................................................. 105 TABLE 19: DEVICE ID REGISTER (DEVID 0X0004H) .................................................................................................................... 106 TABLE 20: REVISION ID REGISTER (REVID 0X0005H) ................................................................................................................. 106 TABLE 21: TELECOM BUS PARITY ENABLE (TBPE 0X000BH) ....................................................................................................... 106 TABLE 22: TELECOM BUS PARITY ERROR ENABLE (TBPEE 0X000FH) ......................................................................................... 107 TABLE 23: OPERATION BLOCK INTERRUPT REGISTER 1 (OPIR1 0X0012H) ................................................................................... 107 TABLE 24: OPERATION BLOCK INTERRUPT REGISTER BYTE 0 (OPIR0 0X0013H) .......................................................................... 108 TABLE 25: OPERATION BLOCK INTERRUPT ENABLE REGISTER BYTE 1 (OPIER1 0X0016H) ........................................................... 109 TABLE 26: OPERATION BLOCK INTERRUPT ENABLE REGISTER BYTE 0 (OPIER0 0X0017H) ........................................................... 110 TABLE 27: DE-SYNC AND AU3 MAPPING CONTROL (DSAU3MC 0X001BH) .................................................................................. 110 TABLE 28: SDH LOOP BACK SELECT (SDHLBS 0X001FH) .......................................................................................................... 111 TABLE 29: HIGH BYTE FRAME BOUNDARY LATENCY (HBFBL 0X0034H) ........................................................................................ 111 TABLE 30: LOW BYTE FRAME BOUNDARY LATENCY (LBFBL 0X0035H) ......................................................................................... 111 TABLE 31: TELECOM BUS CONTROL 1 (TBC1 0X0036H) .............................................................................................................. 112 TABLE 32: TELECOM BUS CONTROL 0 (TBC0 0X0037H) .............................................................................................................. 113 TABLE 33: GENERAL PURPOSE INPUT/OUTPUT (GPIO 0X0047H) .................................................................................................. 114 TABLE 34: GENERAL PURPOSE INPUT/OUTPUT DIRECTION (GPIOD 0X004BH) ............................................................................. 114 TABLE 35: RECOVERED LINE CLOCK REFERENCE 1 (RLCR1 0X004DH) ....................................................................................... 114 TABLE 36: RECOVERED LINE CLOCK REFERENCE 0 (RLCR0 0X004EH) ....................................................................................... 114 TABLE 37: RECOVERED LINE CLOCK SELECT FOR RCLK_REC1 AND RCLK_REC0 HARDWARE PINS .......................................... 115 TABLE 38: CHANNEL INTERRUPT INDICATION REGISTER 11 (CHIIR11 0X0054H) ........................................................................... 116 TABLE 39: CHANNEL INTERRUPT INDICATION REGISTER 10 (CHIIR10 0X0055H) ........................................................................... 116 TABLE 40: CHANNEL INTERRUPT INDICATION REGISTER 9 (CHIIR9 0X0056H) ............................................................................... 116 TABLE 41: CHANNEL INTERRUPT INDICATION REGISTER 8 (CHIIR8 0X0057H) ............................................................................... 116 TABLE 42: CHANNEL INTERRUPT INDICATION REGISTER 7 (CHIIR7 0X0058H) ............................................................................... 117 TABLE 43: CHANNEL INTERRUPT INDICATION REGISTER 6 (CHIIR6 0X0059H) ............................................................................... 117 TABLE 44: CHANNEL INTERRUPT INDICATION REGISTER 5 (CHIIR5 0X005AH) ............................................................................... 117 TABLE 45: CHANNEL INTERRUPT INDICATION REGISTER 4 (CHIIR4 0X005BH) ............................................................................... 117 TABLE 46: CHANNEL INTERRUPT INDICATION REGISTER 3 (CHIIR3 0X005CH) ............................................................................... 118 TABLE 47: CHANNEL INTERRUPT INDICATION REGISTER 2 (CHIIR2 0X005DH) ............................................................................... 118 TABLE 48: CHANNEL INTERRUPT INDICATION REGISTER 1 (CHIIR1 0X005EH) ............................................................................... 118 TABLE 49: CHANNEL INTERRUPT INDICATION REGISTER 0 (CHIIR0 0X005FH) ............................................................................... 118 6.4 RECEIVE TRANSPORT OVERHEAD OPERATION CONTROL REGISTER DESCRIPTIONS..................... 119 TABLE 50: RECEIVE STM-0/STM-1 TRANSPORT CONTROL REGISTER 1 (RTCR1 = 0X0202) ........................................................ 119 TABLE 51: RECEIVE STM-0/STM-1 TRANSPORT CONTROL REGISTER 0 (RTCR0 = 0X0203) ....................................................... 119 TABLE 52: RECEIVE STM-0/STM-1 TRANSPORT STATUS REGISTER 1 (RTSR1 = 0X0206) ........................................................... 121 TABLE 53: RECEIVE STM-0/STM-1 TRANSPORT STATUS REGISTER 0 (RTSR0 = 0X0207) .......................................................... 122 TABLE 54: RECEIVE STM-0/STM-1 TRANSPORT INTERRUPT STATUS REGISTER 2 (RTISR2 = 0X0209) 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