
MT9071
Preliminary Information
22
14.0 Payload Data Operation................................................................................................74
14.1 T1 DS1 Payload Data.............................................................................................................................74
14.1.1
T1 DS1 & ST-BUS DSTi/DSTo Timeslot Relationship................................................................... 74
14.2 E1 PCM30 Payload Data .......................................................................................................................75
14.2.1
E1 PCM30 & ST-BUS DSTi/DSTo Timeslot Relationship.............................................................. 75
15.0 Loopbacks .....................................................................................................................75
15.1 T1 Mode In Band Loopback Codes........................................................................................................77
16.0 T1 Maintenance and Alarms.........................................................................................77
16.1 T1 Error Counters...................................................................................................................................77
16.2 T1 Error Insertion ...................................................................................................................................78
16.3 T1 Per Channel Control..........................................................................................................................78
16.3.1
T1 Per Channel Trunk Conditioning............................................................................................... 79
16.3.2
T1 Per Channel Looping................................................................................................................. 79
16.3.3
T1 Per Channel PRBS Testing....................................................................................................... 79
16.3.4
T1 Per Channel Mu-law Milliwatt.................................................................................................... 80
16.4 T1 Alarms...............................................................................................................................................80
17.0 E1 Maintenance and Alarms.........................................................................................81
17.1 E1 Error Counters ..................................................................................................................................81
17.2 E1 Error Insertion...................................................................................................................................82
17.3 E1 Per Timeslot Control.........................................................................................................................82
17.3.1
E1 Per Timeslot Trunk Conditioning............................................................................................... 83
17.3.2
E1 Per Timeslot Looping................................................................................................................ 83
17.3.3
E1 Per Timeslot PRBS Testing ...................................................................................................... 83
17.3.4
E1 Per Timeslot A-law Milliwatt...................................................................................................... 84
17.4 E1 Alarms...............................................................................................................................................84
17.4.1
E1 Automatic Alarms...................................................................................................................... 85
18.0 T1 & E1 Interrupts .........................................................................................................86
18.1 T1 & E1 Interrupt Status Register Overview ..........................................................................................86
18.1.1
T1 & E1 Interrupt Related Control Bits and Pins............................................................................ 86
18.2 T1 & E1 Interrupt Servicing Methods .....................................................................................................88
18.2.1
T1 & E1 Polling Method.................................................................................................................. 88
18.2.2
T1 & E1 Vector Method.................................................................................................................. 88
18.2.3
T1 & E1 Timer Polling Method........................................................................................................ 88
18.2.4
T1 & E1 Hints ................................................................................................................................. 88
18.3 T1 & E1 Interrupt Vector and Source Summary.....................................................................................89
19.0 T1 & E1 Transceiver Address Space ...........................................................................90
19.1 T1 & E1 Transceiver Register Group Address Space Summaries 900-914 & Y00-YFA .......................90
20.0 T1 & E1 Transceiver Registers Bit Summaries...........................................................92