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