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參數(shù)資料
| 型號(hào)： | M34116B1 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | PCM CONFERENCE CALL AND TONE GENERATION CIRCUIT |
| 中文描述： | 的PCM電話(huà)會(huì)議和音產(chǎn)生電路 |
| 文件頁(yè)數(shù)： | 9/23頁(yè) |
| 文件大?。?/td> | 374K |
| 代理商： | M34116B1 |
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INSTRUCTION SET
OPERATINGMODES
Two different operating mode istructionsare available:
M116 Operating Mode:
Sending this operatingmode instruction, the device functionalityis the same as M116 and M116 instruc-
tion set is selected(refer to the following M116 instructionset for further details).
Control Signal
RD
1
Data Bus
D4
F0
CS
0
C/D
1
WR
0
D7
X
D6
E
D5
F1
D3
0
D2
1
D1
0
D0
1
O
E = 1 extra bit
O
F1–F0=
00 no bit inverted
01 even bit inverted
10 odd bit inverted
11 all bit inverted
Default values after reset:
E = 0
F1– F0 = 11 if MU Law
F1– F0 = 01 if A Law
M34116 Operating Mode:
Sendingthisoperating mode instruction, the M34116instruction set and functionalityare selected
Control Signal
RD
1
Data Bus
D4
F0
CS
0
C/D
1
WR
0
D7
X
D6
E
D5
F1
D3
1
D2
0
D1
0
D0
1
O
E = 1 extra bit
O
F1– F0 =
00 no bit inverted
01 even bit inverted
10 odd bit inverted
11 all bit inverted
Note:
Upon reset M116 instruction set is automatically
selected. To switch from the M116 instruction set
the above M34116 operating mode instruction is
necessary. The operating mode instruction, when
necessary, mustbe sentjust afterreset.
M34116 INSTRUCTION SET.
INSTRUCTION 1: M34116 CHANNEL CONNECTION IN CONFERENCE MODE
Five bytes are needed:
Control Signal
RD
1
1
1
1
1
Data Bus
D4
P4
Al4
AO4
C4
X
CS
0
0
0
0
0
C/D
0
0
0
0
1
WR
0
0
0
0
0
D7
X
X
X
X
X
D6
X
X
X
PT
X
D5
S
X
X
C5
X
D3
P3
Al3
AO3
C3
0
D2
P2
Al2
AO2
C2
1
D1
P1
Al1
AO1
C1
1
D0
P0
Al0
AO0
C0
1
O
S: Startbit
O
Al4–Al0:
Al4 = 1
Al4 = 0
Al3–Al0
O
Ol4–AO0:
AO4 = 1
AO4 = 0
AO3–AO0
Input attenuationor gain (
±
15dB)
gain
attenuation
value indB (0–15)
outputattenuationor gain(
±
15dB)
gain
attenuation
value indB (0–15)
O
PT: Phase toggleconference
O
P4–P0:Conferencenumber (1–29)
O
C5–C0: Channel number (0–63)
When S = 1 the conferenceregister is cleared.
S = 1 can be used only when connecting the first
channelto a new conference.
When PT = 1 the sign of the PCM samples is
changed before they are put in conference. This
corresponds to a phase shift of 180
°
and may be
usedto reduce the electrical echo.
Note:Unspecified DataBus can be either 0’s or 1’s
M34116
9/23
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| M34116C1 | 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:PCM CONFERENCE CALL AND TONE GENERATION CIRCUIT |
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