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參數(shù)資料
| 型號： | STV6688 |
| 廠商： | 意法半導體 |
| 英文描述： | Video Switch Matrix for TV Applications with S Terminal |
| 中文描述： | 視頻切換矩陣與S端子電視應用 |
| 文件頁數(shù)： | 7/12頁 |
| 文件大?。?/td> | 146K |
| 代理商： | STV6688 |
7/12
STV6688
Electrical Characteristics
2.5
I2C Bus Selection
Data transfers follow the usual I2C format:
after the Start condition (S), a 7-bit slave
address is sent, followed by an 8-bit word
which is a data direction bit (W). An 8-bit
sub-address is sent to select a register,
followed by an 8-bit data word to be
included in the register.
The I2C Bus Decoder of the
microcontroller provides the Automatic
Incrementation mode in Write mode.
String Format:
Write Only mode (S =
Start condition, P = Stop condition, A
= Acknowledge)
Input Signals Summary:
(Write
Mode)
Input Signal:
(Write Mode) Data Byte
Figure 2: I2C Bus Timings
tBUF
tLOW
tHIGH
tf
tr
tHD,STA
tHD,DAT
tSU,DAT
tSU,STA
tSU,STO
SDA
SCL
SDA
(Start, Stop)
S
SLAVE ADDRESS: 94h
A
00h
A
DATA
A
P
Reg.Addr.
(Hex)
Data
D7
D6
Buffer
Stand-by
D5
D4
D3
D2
D1
D0
General
Stand-by
Always set
to 1
Switch Control
Reg.
Addr.
Description
Bits
Data
Comments
D7
D6
D5
D4
D3
D2
D1
D0
0x00
General Stand-by
1
0
1
X
X
1
1
X
X
X
X
X
X
X
X
X
X
All disabled
All active
Buffer Stand-by
1
X
X
0
1
1
1
X
X
X
X
X
X
X
X
X
X
Buffer disabled
Buffer active
Y/CVBS and
C Selection
2
X
X
X
X
X
X
X
X
1
1
1
1
X
X
X
X
X
X
X
X
X
X
X
X
0
0
1
1
0
1
0
1
INT TV
IN1
IN2
IN3
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