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參數(shù)資料
| 型號： | OV7910P |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | SINGLE-CHIP CMOS COLOR PAL CAMERA |
| 中文描述： | 單芯片CMOS彩色PAL相機(jī) |
| 文件頁數(shù)： | 11/18頁 |
| 文件大?。?/td> | 247K |
| 代理商： | OV7910P |
December 7, 1999
Version 1.4
11
OV7910P/OV7410P/OV7411P
SINGLE IC CMOS COLOR & B/W PAL ANALOG CAMERAS
O
MNI
V
ISION
T
ECHNOLOGIES
, Inc.
Preliminary
rate using a 7-bit address/data transfer protocol .
Figure 3. I
2
C Bus Protocol Format
S – START CONDITION
A – ACKNOWLEDGE BIT
P – STOP CONDITION
SLAVE ID - 1000000X
X – RW BIT, 1: READ, 0:WRITE
MSB
LSB=0
1ST BYTE
2ND BYTE
3RD BYTE
S
P
A
A
A
RW
SLAVE ID (7BIT)
SUBADDRESS (8BIT)
DATA (8BIT)
START
STOP
ACK
MSB
LSB=1
1ST BYTE
2ND BYTE
3RD BYTE
S
P
A
A
RW
SLAVE ID (7BIT)
START
STOP
ACK
DATA (8BIT)
DATA (8BIT)
MASTER TRANSMIT, SLAVE RECEIVE (WRITE CYCLE)
MASTER RECEIVE, SLAVE TRANSMIT (READ CYCLE)
– SLAVE TRANSMIT
– MASTER TRANSMIT
– MASTER INITIATE
NO ACK IN
LAST BYTE
ACK
1
MSB
LSB=0
1ST BYTE
2ND BYTE
S
P
A
A
RW
SLAVE ID (7BIT)
SUBADDRESS (8BIT)
START
STOP
ACK
MASTER TRANSMIT, SLAVE RECEIVE (DUMMY WRITE CYCLE)
2.
I
2
C Bus
Many of the functions and configuration registers in the
OV7910P/OV7410P/OV7411P image sensors are
available through the I
2
C high-speed serial interface.
The I
2
C port is enabled by asserting the I2CEN line
(pin 34) through a 10K ohm resistor to V
DD
. When the
I
2
C
capability is enabled (I2CEN = 1),the OV7910P/
OV7410P/OV7411P imager operates as a slave
device that supports up to 400 kbps serial transfer
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