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XRT72L54 Datasheet(PDF) 6 Page - Exar Corporation

Part # XRT72L54
Description  FOUR CHANNEL DS3/E3 FRAMER IC WITH HDLC CONTROLLER
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Manufacturer  EXAR [Exar Corporation]
Direct Link  http://www.exar.com
Logo EXAR - Exar Corporation

XRT72L54 Datasheet(HTML) 6 Page - Exar Corporation

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FOUR CHANNEL DS3/E3 FRAMER IC WITH HDLC CONTROLLER
REV. P1.1.2
PRELIMINARY
IV
TXE3 TTB-6 REGISTER (ADDRESS = 0X3E) ........................................................................................... 111
TXE3 TTB-7 REGISTER (ADDRESS = 0X3F) ........................................................................................... 111
TXE3 TTB-8 REGISTER (ADDRESS = 0X40) ........................................................................................... 112
TXE3 TTB-9 REGISTER (ADDRESS = 0X41) ........................................................................................... 112
TXE3 TTB-10 REGISTER (ADDRESS = 0X42) ......................................................................................... 113
TXE3 TTB-11 REGISTER (ADDRESS = 0X43) ......................................................................................... 113
TXE3 TTB-12 REGISTER (ADDRESS = 0X44) ......................................................................................... 113
TXE3 TTB-13 REGISTER (ADDRESS = 0X45) ......................................................................................... 114
TXE3 TTB-14 REGISTER (ADDRESS = 0X46) ......................................................................................... 114
TXE3 TTB-15 REGISTER (ADDRESS = 0X47) ......................................................................................... 114
TXE3 FA1 ERROR MASK REGISTER (ADDRESS = 0X48) ......................................................................... 115
TXE3 FA2 ERROR MASK REGISTER (ADDRESS = 0X49) ......................................................................... 115
TXE3 BIP-8 ERROR MASK REGISTER (ADDRESS = 0X4A) ...................................................................... 115
2.4.7 Transmit E3 Framer Configuration Registers (ITU-T G.751) ................................................................. 116
TXE3 CONFIGURATION REGISTER (ADDRESS = 0X30) ............................................................................ 116
TXE3 LAPD CONFIGURATION REGISTER (ADDRESS = 0X33) .................................................................. 117
TXE3 LAPD STATUS AND INTERRUPT REGISTER (ADDRESS = 0X34) ...................................................... 118
TXE3 SERVICE BITS REGISTER (ADDRESS = 0X35) ................................................................................ 119
TXE3 FAS ERROR MASK REGISTER - 0 (ADDRESS = 0X48) ................................................................... 119
TXE3 FAS ERROR MASK REGISTER - 1 (ADDRESS = 0X49) ................................................................... 119
TXE3 BIP-4 ERROR MASK REGISTER (ADDRESS = 0X4A) ...................................................................... 120
2.4.8 Performance Monitor Registers ............................................................................................................. 120
PMON LCV EVENT COUNT REGISTER - LSB (ADDRESS = 0X51) ........................................................... 120
PMON FRAMING BIT/BYTE ERROR COUNT REGISTER - MSB (ADDRESS = 0X52) ................................... 121
PMON FRAMING BIT/BYTE ERROR COUNT REGISTER - LSB (ADDRESS = 0X53) .................................... 121
PMON PARITY ERROR COUNT REGISTER - MSB (ADDRESS = 0X54) ..................................................... 121
PMON PARITY ERROR COUNT REGISTER - LSB (ADDRESS = 0X55) ...................................................... 121
PMON FEBE EVENT COUNT REGISTER - MSB (ADDRESS = 0X56) ........................................................ 122
PMON FEBE EVENT COUNT REGISTER - LSB (ADDRESS = 0X57) ......................................................... 122
PMON CP-BIT ERROR COUNT REGISTER - MSB (ADDRESS = 0X58) ..................................................... 122
PMON CP-BIT ERROR COUNT REGISTER - LSB (ADDRESS = 0X59) ...................................................... 123
PMON HOLDING REGISTER (ADDRESS = 0X6C) ..................................................................................... 123
ONE-SECOND ERROR STATUS REGISTER (ADDRESS = 0X6D) ................................................................ 123
LCV - ONE-SECOND ACCUMULATOR REGISTER - MSB (ADDRESS = 0X6E) ............................................ 124
LCV - ONE-SECOND ACCUMULATOR REGISTER - LSB (ADDRESS = 0X6F) .............................................. 124
FRAME PARITY ERRORS - ONE-SECOND ACCUMULATOR REGISTER - MSB (ADDRESS = 0X70) ................ 124
FRAME PARITY ERRORS - ONE-SECOND ACCUMULATOR REGISTER - LSB (ADDRESS = 0X71) ................. 125
FRAME CP-BIT ERRORS - ONE-SECOND ACCUMULATOR REGISTER - MSB (ADDRESS = 0X72) ............... 125
FRAME PARITY ERRORS - ONE-SECOND ACCUMULATOR REGISTER - LSB (ADDRESS = 0X73) ................. 125
LINE INTERFACE DRIVE REGISTER (ADDRESS = 0X80) ............................................................................ 126
LINE INTERFACE SCAN REGISTER (ADDRESS = 0X81) ............................................................................. 128
HDLC CONTROL REGISTER (ADDRESS = 0X82) ..................................................................................... 129
2.5 THE LOSS OF CLOCK ENABLE FEATURE ............................................................................................................. 129
ADDRESS = 0X01, FRAMER I/O CONTROL REGISTER .............................................................................. 130
2.6 USING THE PMON HOLDING REGISTER .............................................................................................................. 130
2.7 THE INTERRUPT STRUCTURE WITHIN THE FRAMER MICROPROCESSOR INTERFACE SECTION ................................. 130
TABLE 6: LIST OF ALL OF THE POSSIBLE CONDITIONS THAT CAN GENERATE INTERRUPTS WITHIN EACH CHANNEL
OF THE
XRT72L54 FRAMER DEVICE ...................................................................................................... 131
TABLE 7: A LISTING OF THE XRT72L54 FRAMER DEVICE INTERRUPT BLOCK REGISTERS (FOR DS3 APPLICA-
TIONS
) ................................................................................................................................................... 131
TABLE 8: A LISTING OF THE XRT72L54 FRAMER DEVICE INTERRUPT BLOCK REGISTERS (FOR E3, ITU-T G.832
APPLICATIONS) ...................................................................................................................................... 131
TABLE 9: A LISTING OF THE XRT72L54 FRAMER DEVICE INTERRUPT BLOCK REGISTER (FOR E3, ITU-T G.751
APPLICATIONS) ...................................................................................................................................... 132
BLOCK INTERRUPT STATUS REGISTER (ADDRESS = 0X05) ...................................................................... 132


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