Appendix A
Audio Bit Manipulation
90
Manipulating Channel Status Bits (C-Bit)
Table A-2
Channel Status (C-Bits) Data Description
Byte
Bit
Function
RX
TX
Remarks
0
0
[0] Consumer Use
[1] Professional Use
N
Y
N
Y
RX ignores bit
TX sets bit to 1
0
1
[0] Audio
[1] Non-Audio
S
S
Y
Y
RX sets up audio
channel to pass data
(Gain=0 dB, Invert=off)
TX bit passed
unmodified or forced,
according to
Output
Chxx Format
and
Out
Chxx Format Fb
parameters
0
2 to 4
[000] Not Indicated
[100] No Emphasis
[110] 50/15 µs
[111] CCITTJ17
S
S
S
S
Y
Y
Y
Y
RX ignores bits
TX passed bits
unmodified
0
5
[0] Locked
[1] Unlocked
N
N
Y
N
RX ignores bits
TX sets bit to [0]
0
6 to 7
[00] Not indicated
[01] 48 kHz
[10] 44.1 kHz
[11] 32 kHz
Y
Y
Y
Y
N
Y
N
N
RX ignores bits
TX sets bits to [01]
1
0 to 3
[0000] Not indicated
[0001] Two channel
[0010] Mono
[0011] Prim/sec
[0100] Stereo
[0101] to [1111] Undefined
N
N
N
N
N
N
Y
N
N
N
N
N
RX ignores bits
TX sets bits to [0000]
1
4 to 7
[0000] Not indicated
[0001] 192 bit block
[0010] AES18 (HDLC)
[0011] User defined
[0100] to [1111] Undefined
S
S
S
S
S
Y
Y
Y
Y
Y
RX ignores bits
TX passes bits
unmodified
2
0 to 2
[000] Aux. bit use is not indicated
[001] Aux. bit use is audio data
[010] Aux. bit use is co-ordination
signal
[011] to [111] Undefined
N
N
N
N
Y
Y
N
N
RX ignores bits
TX sets bits according
to transmitted word
length
Summary of Contents for Selenio 6800 SFS6803+OP+SFS+
Page 4: ......
Page 8: ...Contents vi Hardware Communication Problems 99 Index 101...
Page 92: ...Chapter 3 Operation 78...
Page 108: ...Appendix A Audio Bit Manipulation 94...
Page 118: ...Index 104...
