Cirrus Logic CS61880, Руководство пользователя

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CDB61880
DS450DB1 3
5.1 Choose Parallel Port Settings .......................................................................................... 12
5.2 Access and Configure the Read / Write Registers .......................................................... 12
5.2.1 Access Configuration Screens ............................................................................ 12
5.2.2 Select Register to Configure ............................................................................... 12
5.3 Loopback /Bits Clock Screen ........................................................................................... 13
5.4 LOS/AIS/DFM/JA Register Screen .................................................................................. 14
5.5 Transmitter Register Screen ............................................................................................ 15
5.6 AWG Register Screen ..................................................................................................... 16
5.7 Global Control Register Screen ....................................................................................... 17
6. BOARD CONFIGURATIONS ................................................................................................. 18
6.1 E1 75
Ω
Mode Setup ....................................................................................................... 18
6.2 E1 120
Ω
Mode Setup ..................................................................................................... 19
7. EVALUATION HINTS ............................................................................................................. 20
LIST OF FIGURES
Figure 1. CDB61880 Board Layout ................................................................................................. 4
Figure 2. On-board Logic Power Selection ..................................................................................... 5
Figure 3. Master Clock Selections .................................................................................................. 5
Figure 4. Hardware/Host Mode Selection ....................................................................................... 6
Figure 5. Transmitter Enable Selection........................................................................................... 7
Figure 6. Clock Edge Selection....................................................................................................... 7
Figure 7. Jitter Attenuator Selection................................................................................................ 7
Figure 8. Loopback Mode Selection................................................................................................ 7
Figure 9. Switch S9 Settings ........................................................................................................... 8
Figure 10. Digital Signal Control/Access......................................................................................... 9
Figure 11. CS61884 Software Opening Screen............................................................................ 10
Figure 12. Register Bit Box ........................................................................................................... 10
Figure 13. Set All Button ............................................................................................................... 10
Figure 14. Clear All Button ............................................................................................................ 11
Figure 15. Write All Button ............................................................................................................ 11
Figure 16. Read All Button ............................................................................................................ 11
Figure 17. Write Button ................................................................................................................. 11
Figure 18. Read Button ................................................................................................................. 11
Figure 19. Opening Screen for Port and Address Selection Screen............................................. 12
Figure 20. Loopback/G.703 Bits Clock Selection Screen ............................................................. 13
Figure 21. LOS/AIS/DFM/JA ERR Status/Enable Selection Screen............................................. 14
Figure 22. Transmitter Register Screen ........................................................................................ 15
Figure 23. AWG Registers Screen................................................................................................ 16
Figure 24. Global Control Screen.................................................................................................. 17
LIST OF TABLES
Table 1. External Impedance Resistor Values ................................................................................ 6
Table 2. Protection Resistor Selection ........................................................................................... 6
Table 3. Switch Settings for Host Mode .......................................................................................... 9
Table 4. E1 75
Ω
Operational Mode Switch/Jumper Position ....................................................... 18
Table 5. E1 120
Ω
Operational Mode Switch/Jumper Position ..................................................... 19