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DS580F6
3
CS8406
15. APPENDIX A: EXTERNAL AES3/SPDIF/IEC60958 TRANSMITTER COMPONENTS ................... 35
15.1 AES3 Transmitter External Components .................................................................................... 35
15.2 Isolating Transformer Requirements .......................................................................................... 35
16. APPENDIX B: CHANNEL STATUS AND USER DATA BUFFER MANAGEMENT ........................ 36
16.1 AES3 Channel Status(C) Bit Management ................................................................................. 36
16.1.1 Accessing the E buffer ................................................................................................... 36
16.1.2 Serial Copy Management System (SCMS) .................................................................... 37
16.1.3 Channel Status Data E Buffer Access ........................................................................... 37
16.2 AES3 User (U) Bit Management ................................................................................................. 38
16.2.1 Mode 1: Transmit All Zeros ............................................................................................ 38
16.2.2 Mode 2: Block Mode ...................................................................................................... 38
17. REVISION HISTORY ......................................................................................................................... 39
LIST OF FIGURES
Figure 1. Audio Port Master Mode Timing ................................................................................................... 6
Figure 2. Audio Port Slave Mode and Data Input Timing............................................................................. 6
Figure 3. SPI Mode Timing .......................................................................................................................... 7
Figure 4. I²C Mode Timing ........................................................................................................................... 8
Figure 5. Recommended Connection Diagram for Software Mode ............................................................. 9
Figure 6. Recommended Connection Diagram for Hardware Mode .......................................................... 10
Figure 7. Serial Audio Input Example Formats .......................................................................................... 12
Figure 8. AES3 Transmitter Timing for C, U, and V Pin Input Data, Stereo Mode..................................... 14
Figure 9. AES3 Transmitter Timing for C, U, and V Pin Input Data, Mono Mode ...................................... 15
Figure 10. Control Port Timing in SPI Mode .............................................................................................. 16
Figure 11. Control Port Timing, I²C Slave Mode Write............................................................................... 17
Figure 12. Control Port Timing, I²C Slave Mode Read............................................................................... 17
Figure 13. Hardware Mode Data Flow ....................................................................................................... 27
Figure 14. Professional Output Circuit ....................................................................................................... 35
Figure 15. Consumer Output Circuit (VL = 5.0 V) ...................................................................................... 35
Figure 16. TTL/CMOS Output Circuit......................................................................................................... 35
Figure 17. Channel Status Data Buffer Structure....................................................................................... 36
Figure 18. Flowchart for Writing the E Buffer ............................................................................................. 37
LIST OF TABLES
Table 1. Control Register Map Summary................................................................................................... 18
Table 2. Hardware Mode COPY/C and ORIG Pin Functions..................................................................... 28
Table 3. Hardware Mode Serial Audio Port Format Selection ................................................................... 28
Table 4. Hardware Mode OMCK Clock Ratio Selection............................................................................. 28
Table 5. Equivalent Register Settings of Serial Audio Input Formats in Hardware Mode .......................... 28
