XRT72L50 Datasheet, PDF (4/471 Pages) Exar Corporation – SINGLE CHANNEL DS3/E3 FRAMER IC WITH HDLC CONTROLLER

XRT72L50
SINGLE CHANNEL DS3/E3 FRAMER IC WITH HDLC CONTROLLER
REV. 1.2.1
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2.3.2.1 Operating Mode Register .............................................................................................................. 46
2.3.2.2 I/O Control Register ...................................................................................................................... 48
2.3.2.3 Part Number Register ................................................................................................................... 50
2.3.2.4 Version Number Register .............................................................................................................. 50
2.3.2.5 Block Interrupt Enable Register .................................................................................................... 50
2.3.2.6 Block Interrupt Status Register ..................................................................................................... 51
2.3.2.7 Test Register ................................................................................................................................. 52
2.3.2.8 Receive DS3 Configuration & Status Register .............................................................................. 53
2.3.2.9 Receive DS3 Status Register ........................................................................................................ 54
2.3.2.10 Receive DS3 Interrupt Enable Register ...................................................................................... 55
2.3.2.11 Receive DS3 Interrupt Status Register ....................................................................................... 56
2.3.2.12 Receive DS3 Sync Detect Enable Register ............................................................................... 58
2.3.2.13 Receive DS3 FEAC Register ...................................................................................................... 58
2.3.2.14 Receive DS3 FEAC Interrupt Enable/Status Register ................................................................ 58
2.3.2.15 Receive DS3 LAPD Control Register .......................................................................................... 59
2.3.2.16 Receive DS3 LAPD Status Register .......................................................................................... 60
2.3.3 Receive E3 Framer Configuration Registers (ITU-T G.832) .................................................................... 61
2.3.3.1 Receive E3 Configuration & Status Register 1 (E3, ITU-T G.832) ................................................ 61
2.3.3.2 Receive E3 Configuration & Status Register 2 (E3, ITU-T G.832) ................................................ 62
2.3.3.3 Receive E3 Interrupt Enable Register 1 (E3, ITU-T G.832) .......................................................... 63
2.3.3.4 Receive E3 Interrupt Enable Register 2 (E3, ITU-T G.832) .......................................................... 64
2.3.3.5 Receive E3 Interrupt Status Register 1 (E3, ITU-T G.832) ........................................................... 65
2.3.3.6 Receive E3 Interrupt Status Register 2 (E3, ITU-T G.832) ........................................................... 66
2.3.3.7 Receive E3 LAPD Control Register (E3, ITU-T G.832) ................................................................. 68
2.3.3.8 Receive E3 LAPD Status Register (E3, ITU-T G.832 ................................................................... 68
2.3.3.9 Receive E3 NR Byte Register (E3, ITU-T G.832) ......................................................................... 69
2.3.3.10 Receive E3 GC Byte Register (E3, ITU-T G.832) ....................................................................... 70
2.3.3.11 Receive E3 TTB-0 Register (E3, ITU-T G.832) ........................................................................... 70
2.3.3.12 Receive E3 TTB-1 Register (E3, ITU-T G.832) ........................................................................... 70
2.3.3.13 Receive E3 TTB-2 Register (E3, ITU-T G.832) ........................................................................... 71
2.3.3.14 Receive E3 TTB-3 Register (E3, ITU-T G.832) ........................................................................... 71
2.3.3.15 Receive E3 TTB-4 Register (E3, ITU-T G.832) ........................................................................... 71
2.3.3.16 Receive E3 TTB-5 Register (E3, ITU-T G.832) ........................................................................... 72
2.3.3.17 Receive E3 TTB-6 Register (E3, ITU-T G.832) ........................................................................... 72
2.3.3.18 Receive E3 TTB-7 Register (E3, ITU-T G.832) ........................................................................... 72
2.3.3.19 Receive E3 TTB-8 Register (E3, ITU-T G.832) ........................................................................... 73
2.3.3.20 Receive E3 TTB-9 Register (E3, ITU-T G.832) ........................................................................... 73
2.3.3.21 Receive E3 TTB-10 Register (E3, ITU-T G.832) ......................................................................... 73
2.3.3.22 Receive E3 TTB-11 Register (E3, ITU-T G.832) ......................................................................... 74
2.3.3.23 Receive E3 TTB-12 Register (E3, ITU-T G.832) ......................................................................... 74
2.3.3.24 Receive E3 TTB-13 Register (E3, ITU-T G.832) ......................................................................... 74
2.3.3.25 Receive E3 TTB-14 Register (E3, ITU-T G.832) ......................................................................... 75
2.3.3.26 Receive E3 TTB-15 Register (E3, ITU-T G.832) ......................................................................... 75
2.3.3.27 Receive E3 Framer SSM Register (E3, ITU-T G.832) ................................................................ 75
2.3.4 Receive E3 Framer Configuration Registers (ITU-T G.751) .................................................................... 76
2.3.4.1 Receive E3 Configuration & Status Register 1 (E3, ITU-T G.751) ............................................... 76
2.3.4.2 Receive E3 Configuration & Status Register 2 (E3, ITU-T G.751) ................................................ 76
2.3.4.3 Receive E3 Framer Interrupt Enable Register 1 (E3, ITU-T G.751) .............................................. 78
2.3.4.4 Receive E3 Interrupt Enable Register 2 (E3, ITU-T G.751) .......................................................... 78
2.3.4.5 Receive E3 Interrupt Status Register 1 (E3, ITU-T G.751) ........................................................... 79
2.3.4.6 Receive E3 Interrupt Status Register 2 (E3, ITU-T G.751) ........................................................... 80
2.3.4.7 Receive E3 LAPD Control Register (E3, ITU-T G.751) ................................................................. 81
2.3.4.8 Receive E3 LAPD Status Register (E3, ITU-T G.751) .................................................................. 81
2.3.4.9 Receive E3 Service Bits Register (E3, ITU-T G.751) .................................................................... 83
2.3.5 Transmit DS3 Configuration Registers .................................................................................................... 83
2.3.5.1 Transmit DS3 Configuration Register ............................................................................................ 83
2.3.5.2 Transmit DS3 FEAC Configuration & Status Register .................................................................. 85
2.3.5.3 Transmit DS3 FEAC Register ....................................................................................................... 86
2.3.5.4 Transmit DS3 LAPD Configuration Register ................................................................................. 86
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