pef80913 Infineon Technologies Corporation, pef80913 Datasheet - Page 6
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pef80913
Manufacturer Part Number
pef80913
Description
2b1q Second Gen. Modular Isdn Nt
Manufacturer
Infineon Technologies Corporation
Datasheet
1.PEF80913.pdf
(240 pages)
- Current page: 6 of 240
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Table of Contents
2.4.2.3
2.4.2.4
2.4.3
2.4.3.1
2.4.3.2
2.4.3.3
2.4.3.4
2.4.4
2.4.4.1
2.4.4.2
2.4.4.3
2.4.4.4
2.4.5
2.4.6
2.4.7
2.4.7.1
2.4.7.2
2.4.8
2.4.9
2.4.10
2.4.10.1
2.4.10.2
2.4.10.3
2.4.10.4
2.4.10.5
2.4.10.6
2.4.11
2.4.12
2.5
2.5.1
2.5.2
2.5.3
2.5.4
2.5.5
2.5.5.1
2.5.5.2
2.5.5.3
2.5.6
2.5.7
3
3.1
3.1.1
Data Sheet
S-Transceiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Operational Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Layer 1 Activation/Deactivation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Processing of the EOC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Processing of the Overhead Bits M4, M5, M6 . . . . . . . . . . . . . . . . . . . . 75
M4, M5, M6 Bit Control Mechanisms . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Cyclic Redundancy Check / FEBE bit . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Block Error Counters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Scrambling/ Descrambling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
C/I Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
State Machines for Line Activation / Deactivation . . . . . . . . . . . . . . . . . 85
Metallic Loop Termination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
U-Transceiver Interrupt Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
Line Coding, Frame Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
S/Q Channels, Multiframing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Data Transfer between IOM‚-2 and S0 . . . . . . . . . . . . . . . . . . . . . . . . 106
Loopback 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Control of S-Transceiver / State Machine . . . . . . . . . . . . . . . . . . . . . . 106
S-Transceiver Enable / Disable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Interrupt Structure S-Transceiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
Complete Activation Initiated by Exchange . . . . . . . . . . . . . . . . . . . . . 120
Availability of Maintenance Channel Information . . . . . . . . . . . . . . . . 64
M-Bit Register Access Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
EOC Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
EOC Processor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
EOC Operating Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Examples for different EOC modes . . . . . . . . . . . . . . . . . . . . . . . . . . 72
M4 Bit Reporting to the µC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
M4 Bit Reporting to State Machine . . . . . . . . . . . . . . . . . . . . . . . . . . 75
M5, M6 Bit Reporting to the µC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Summary of M4, M5, M6 Bit Reporting . . . . . . . . . . . . . . . . . . . . . . . 75
Near-End and Far-End Block Error Counter . . . . . . . . . . . . . . . . . . . 81
Testing Block Error Counters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Notation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Standard NT State Machine (IEC-Q / NTC-Q Compatible) . . . . . . . . 87
Inputs to the U-Transceiver: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Outputs of the U-Transceiver: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Description of the NT-States . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Simplified NT State Machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
C/I Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
State Machine NT Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
State Machine LT-S Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
PEF 82912/82913
2001-03-30
Page
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