Harris HMX6803+ - Manipulating Channel Status Bits (C-Bit)

74 HMX6803+ and OP+HMX+ Installation and Operation Manual
Copyright © 2009, Harris Corporation
Appendix A: Audio Bit Manipulation
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