Analog Devices SHARC ADSP-214 Series - Page 580

S/PDIF Transmitter
13-10 ADSP-214xx SHARC Processor Hardware Reference

When I
2
S format is used with 20-bit or 16-bit data, the audio data
should be placed from the MSB of the 24-bit audio data.
Figure 13-4. Data Packing for Right-Justified Format, 24 Bits
Figure 13-5. Data Packing for Right-Justified Format, 20 Bits
Figure 13-6. Data Packing for Right-Justified Format, 18 Bits
Figure 13-7. Data Packing for Right-Justified Format, 16 Bits
Bits 27–4: 24-Bit Audio Data
3 210
Channel Status
User Data
Validity Bit
Block Start
Bits 27–8: 20-Bit Audio Data 7654BITS 3 –0
Padding (zero)
Block Start
Channel Status
User Data
Validity Bit
Bits 27–10: 18-Bit Audio Data 9 8 76 BITS 5–0
Padding (zero)
Block Start
Channel Status
User Data
Validity Bit
Bits 27–12: 16-Bit Audio Data 11 10 9 8 BITS 7–0
Padding (zero)
Block Start
Channel Status
User Data
Validity Bit
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