Manipulating Channel Status Bits (C-Bit) - Imagine communications Selenio 6800 Installation And Operation Manual

Appendix A: Audio Bit Manipulation

Manipulating Channel Status Bits (C-Bit)

Table A-2. Channel Status (C-Bits) Data Description
Byte Bit Function
0 0 [0] Consumer Use
[1] Professional Use
0 1 [0] Audio
[1] Non-Audio
0 2 to 4 [000] Not Indicated
[100] No Emphasis
[110] 50/15 µs
[111] CCITTJ17
0 5 [0] Locked
[1] Unlocked
0 6 to 7 [00] Not indicated
[01] 48 kHz
[10] 44.1 kHz
[11] 32 kHz
1 0 to 3 [0000] Not indicated
[0001] Two channel
[0010] Mono
[0011] Prim/sec
[0100] Stereo
[0101] to [1111] Undefined
1 4 to 7 [0000] Not indicated
[0001] 192 bit block
[0010] AES18 (HDLC)
[0011] User defined
[0100] to [1111] Undefined
70
RX TX Remarks
• RX ignores bit
N N
Y Y
• TX sets bit to 1
• RX sets up audio channel
S Y
to pass data (Gain=0 dB,
S Y
Invert=off)
• TX bit passed
unmodified or forced,
according to Output
Chxx Format and Out
Chxx Format Fb
parameters
• RX ignores bits
S Y
S Y
• TX passed bits
S Y
unmodified
S Y
• RX ignores bits
N Y
N N
• TX sets bit to [0]
• RX ignores bits
Y N
Y Y
• TX sets bits to [01]
Y N
Y N
• RX ignores bits
N Y
N N
• TX sets bits to [0000]
N N
N N
N N
N N
• RX ignores bits
S Y
S Y
• TX passes bits
S Y
unmodified
S Y
S Y
HMX6800+BC8 Installation and Operation Manual