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參數(shù)資料
| 型號： | MT8924 |
| 廠商： | Mitel Networks Corporation |
| 英文描述： | PCM Conference Circuit (PCC) Preliminary Information |
| 中文描述： | 會議的PCM電路（PCC）的初步信息 |
| 文件頁數(shù)： | 7/18頁 |
| 文件大?。?/td> | 102K |
| 代理商： | MT8924 |
Preliminary Information
MT8924
8-9
S:
P3-P0:
IT:
C4-C0:
A1-A0:
Conference Start Bit
Conference Number (1-10)
Insertion Tone Function Enable (IT=1)
Channel Number (0-31)
Channel Attenuation
00 = -0dB
01 = -3dB
10 = -6dB
T1-T0:
Channel Noise Suppression
A-Law
no noise suppression
9/4096
16/4096
32/4096
T1/T0
00
01
10
11
μ
-Law
9/8159
16/8159
32/8159
T1-T0: see noise suppression description given for Instruction 1
CF10 - CF1 : Conference is in overflow when bit is HIGH
Note : as long as RD remains LOW, the overflow status of the conference selected by C/D can be monitored in real time
Instruction 1 : Channel Connection in Conference Mode
Control Signals
Data Bus
Comments
CS
RD
C/D
WR
D7
D6
D5
D4
D3
D2
D1
D0
0
1
0
0
X
X
X
S
P3
P2
P1
P0
Conference Number
0
1
0
0
X
X
IT
C4
C3
C2
C1
C0
PCM Channel Number and
Insertion Tone control
0
1
1
0
A1
A0
T1
T0
0
1
1
1
Opcode, Attenuation, and
Noise Suppression control
Instruction 2 : Channel Connection in Transparent Mode
Control Signals
Data Bus
Comments
CS
RD
C/D
WR
D7
D6
D5
D4
D3
D2
D1
D0
0
1
0
0
X
X
X
C4
C3
C2
C1
C0
PCM Channel Number
0
1
1
0
A1
A0
T1
T0
0
0
1
1
Opcode and Attenuation
Instruction 3 : Channel Disconnection
Control Signals
Data Bus
Comments
CS
RD
C/D
WR
D7
D6
D5
D4
D3
D2
D1
D0
0
1
0
0
X
X
X
C4
C3
C2
C1
C0
PCM Channel Number
0
1
1
0
X
X
X
X
1
1
1
1
Opcode
Instruction 4: Overflow Status Monitoring
Control Signals
Data Bus
Comments
CS
RD
C/D
WR
D7
D6
D5
D4
D3
D2
D1
D0
0
0
0
1
CF
8
CF
7
CF
6
CF
5
CF
4
CF
3
CF
2
CF
1
Conferences 1 to 8
0
0
1
1
X
X
X
X
X
X
CF
10
CF
9
Conferences 9 to 10
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