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參數(shù)資料
| 型號： | MM1250 |
| 廠商： | MITSUMI ELECTRIC |
| 英文描述： | Monolithic IC MM1250 |
| 中文描述： | 單片集成電路MM1250 |
| 文件頁數(shù)： | 7/9頁 |
| 文件大?。?/td> | 308K |
| 代理商： | MM1250 |
MITSUMI
I
2
C Bus Video Switch MM1250
I
2
C Bus
MSB
LSB
MSB
SDA
SCL
S
1
2
3
4
5
6
7
8
ACK
ACK
P
1
2
S:Start Condition
P:Stop Condition
ACK:Acknowledge
The I
2
C bus (Inter IC Bus) is a bus system developed by Philips.
Data is transferred on two lines, SDA and SCL.
Data is transferred in byte units, and MSB is first from start condition.
1. Data format
S
Slave address
0
1
R/W
0
A
Control bits
A
P
1
0
0
0
1
Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0
Address byte
Control byte
The first 7 bits of the address byte is the salve address, and the last bit is allocated as R/W bit. On
MM1250XD, 92
H
is used for the slave address and 0 (write only) for the R/W bit.
The A at the 9th bit is an acknowledge signal added for verification from slave.
2. Control byte format
Control byte configuration on MM1250XD is allocated as shown in the table below.
Each bit is set at "0" when power is turned on.
Control
Control results
SW1
0
0
1
1
SW0
0
1
0
1
MODE1
TV
E1
E2
TV
V
OUT
V
TV
V
E
1
V
E
2
V
TV
L
OUT
L
TV
L
E
1
L
E
2
L
TV
R
OUT
R
TV
R
E
1
R
E
2
R
TV
Mute
0
1
L
OUT
SW
L
Mute
R
OUT
SW
R
Mute
OUT
0
1
Pin 13 status
Low
Open
Control
Control results
MODE1
TV
S4
-
A
B
-
-
A
B
-
SW2
0
0
0
0
1
1
1
1
Mode2
Comp
Comp
S
Comp
TH
TH
S
TH
SW
Y
Y
IN
Y
IN
V
E
1
Y
IN
V
TV
V
E
1
V
E
1
V
E
2
SW
C
C
IN
C
IN
S
CIN
C
IN
V
TV
V
E
1
S
CIN
V
E
2
E1
E2
TV
E1
E2
Bit7
Bit6
Bit5
Bit4
OUT Mute SW2 SW1 SW0
Bit3
Bit2
Bit1
Bit0
: Don't Care
SW V, L, R control
Audio Mute control
Out Port control
SW Y, C control
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| MM1253A | Remaining Battery Power Display |
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相關代理商/技術參數(shù) |
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|---|---|
| MM1251 | 制造商:MITSUMI 制造商全稱:Mitsumi Electronics, Corp. 功能描述:Remaining Battery Power Display |
| MM1251A | 制造商:MITSUMI 制造商全稱:Mitsumi Electronics, Corp. 功能描述:Remaining Battery Power Display |
| MM1251B | 制造商:MITSUMI 制造商全稱:Mitsumi Electronics, Corp. 功能描述:Remaining Battery Power Display |
| MM1252 | 制造商:MITSUMI 制造商全稱:Mitsumi Electronics, Corp. 功能描述:Remaining Battery Power Display |
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