Preliminary Information
Instruction 1 : Channel Connection in Conference Mode
Control Signals
CS
0
0
0
S:
P3-P0:
IT:
C4-C0:
A1-A0:
MT8924
Data Bus
Comments
D2
P2
C2
1
T1-T0:
T1/T0
00
01
10
11
RD
1
1
1
C/D
0
0
1
WR
0
0
0
D7
X
X
A1
D6
X
X
A0
D5
X
IT
T1
D4
S
C4
T0
D3
P3
C3
0
D1
P1
C1
1
D0
P0
C0
1
Conference Number
PCM Channel Number and
Insertion Tone control
Opcode, Attenuation, and
Noise Suppression control
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
Channel Noise Suppression
A-Law
µ-Law
no noise suppression
9/4096
9/8159
16/4096
16/8159
32/4096
32/8159
Instruction 2 : Channel Connection in Transparent Mode
Control Signals
CS
0
0
RD
1
1
C/D
0
1
WR
0
0
D7
X
A1
D6
X
A0
D5
X
T1
Data Bus
D4
C4
T0
D3
C3
0
D2
C2
0
D1
C1
1
D0
C0
1
PCM Channel Number
Opcode and Attenuation
Comments
T1-T0: see noise suppression description given for Instruction 1
Instruction 3 : Channel Disconnection
Control Signals
CS
0
0
RD
1
1
C/D
0
1
WR
0
0
D7
X
X
D6
X
X
D5
X
X
Data Bus
D4
C4
X
D3
C3
1
D2
C2
1
D1
C1
1
D0
C0
1
PCM Channel Number
Opcode
Comments
Instruction 4: Overflow Status Monitoring
Control Signals
CS
0
0
RD
0
0
C/D
0
1
WR
1
1
D7
CF
8
X
D6
CF
7
X
D5
CF
6
X
Data Bus
D4
CF
5
X
D3
CF
4
X
D2
CF
3
X
D1
CF
2
CF
10
D0
CF
1
CF
9
Conferences 1 to 8
Conferences 9 to 10
Comments
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
8-9
MITEL [ MITEL NETWORKS CORPORATION ]
