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參數(shù)資料
| 型號： | MM1442 |
| 廠商： | Mitsubishi Electric Corporation |
| 英文描述： | AV Switch for I2C BUS Control, 4-input, 3-output and Canal Plus Compatible |
| 中文描述： | AV系列開關(guān)的I2C總線控制，4輸入，3輸出，Canal Plus的兼容 |
| 文件頁數(shù)： | 10/13頁 |
| 文件大?。?/td> | 312K |
| 代理商： | MM1442 |
MITSUMI
AV Switch for I
2
C BUS Control, 4-input, 3-output and Canal Plus Compatible MM1422, 1423, 1442, 1443
The data format of the MM1422 series is set as shown in the above figure. Out of the address bytes, first 7
bits are assigned to the slave addresses, while the residual 1 bit is assigned to the R/W bit. Set the R/W bit to
0 when data are used as control registers. Slave address of the MM1422 series is 90H. Each bit of control
registers is reset to 0. MM1422 series consists of one address byte and two control data bytes(3 bytes in
total). For details of the control contents of control register 1 and 2, refer to the separate table.
All data over the limited length (4th and subsequent bytes) are fully neglected. Because of this, the faulty
operation that switch changes by the data after the 4th byte doesn't occur.
Each audio output can be set to mute by setting MUTE terminal to high.
[Status registers]
There is no preparation of the status register in MM1422 series. A status register returns all the 1 when is set
in the R/W bit.
b7
b6
b5
b4
b3
b2
b1
b0
OUT 1 select
OUT 2 select
OUT 3 select
FS CTRL
b7
b6
b5
b4
b3
b2
b1
b0
Mute
0, 12dB select
Port 1 CTRL
Port 2 CTRL
Audio OUT2 gain select
Audio OUT3 gain select
[Control Register 1]
[Control Register 2]
S
Slave address
0
1
R/W
1
A
status register
b5
b4
NA
P
1
0
0
0
0
b7
b6
b3
b2
b1
b0
Address byte
Status data
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