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參數(shù)資料
| 型號： | OV6120 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | SINGLE-CHIP CMOS CIF COLOR DIGITAL CAMERA |
| 中文描述： | 單芯片CMOS到岸價格彩色數(shù)碼攝像機(jī) |
| 文件頁數(shù)： | 24/31頁 |
| 文件大?。?/td> | 341K |
| 代理商： | OV6120 |
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OV6620/OV6120
24
Version 1.11
14 May 1999
SINGLE IC CMOS COLOR AND B/W DIGITAL CAMERAS
O
MNI
V
ISION
T
ECHNOLOGIES
, Inc.
Advanc ed Information
Preliminary
3.1
In I
2
C operation, the master must perform the following
operations:
I
2
C Bus Protocol Format
n
n
n
Generate the start/stop condition
Provide the serial clock on
SCL
Place the 7-bit slave address, the RW bit,
and the 8-bit subaddress on
SDA
The receiver must pull down SDA during the acknowl-
edge bit time. During the write cycle, the OV6620/
OV6120 device returns the acknowledgment and, dur-
ing read cycle, the master returns the acknowledgment
except when the read data is the last byte. If the read
data is the last byte, the master does not perform an
acknowledge, indicating to the slave that the read cycle
can be terminated. Note that the restart feature is not
supported here.
Within each byte, MSB is always transferred first.
Read/write control bit is the LSB of the first byte.
Standard I
2
C communications require only two pins:
SCL and SDA. SDA is configured as open drain for bi-
directional purpose. A HIGH to LOW transition on the
SDA while SCL is HIGH indicates a START condition. A
LOW to HIGH transition on the SDA while SCL is HIGH
indicates a STOP condition. Only a master can gener-
ate START/STOP conditions.
Except for these two special conditions, the protocol
that SDA remain stable during the HIGH period of the
clock, SCL. Each bit is allowed to change state only
when SCL is LOW (See Figure 9. Bit Transfer on the
I
2
C Bus and Figure 10. Data Transfer on the I
2
C Bus
below).
The OV6620/OV6120 I
2
C supports multi-byte write and
multi-byte read. The master must supply the subad-
dress. in the write cycle, but not in the read cycle.
Figure 9. Bit Transfer on the I
2
C Bus
I
Figure 10. Data Transfer on the I
2
C Bus
SDA
SCL
DATA
STABLE
DATA
CHANGE
ALLOWED
SDA
SCL
S
P
A
A
A
SLAVE ID
RW
SUB ADD
DATA
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| OV6620 | SINGLE-CHIP CMOS CIF COLOR DIGITAL CAMERA |
| OV6130 | SINGLE-CHIP CMOS CIF COLOR DIGITAL CAMERA |
| OV6630 | SINGLE-CHIP CMOS CIF COLOR DIGITAL CAMERA |
| OV7410 | SINGLE-CHIP CMOS COLOR PAL CAMERA |
| OV7410P | SINGLE-CHIP CMOS COLOR PAL CAMERA |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| OV6130 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:SINGLE-CHIP CMOS CIF COLOR DIGITAL CAMERA |
| OV6620 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:SINGLE-CHIP CMOS CIF COLOR DIGITAL CAMERA |
| OV6630 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:SINGLE-CHIP CMOS CIF COLOR DIGITAL CAMERA |
| OV6680 | 制造商:OMNIVISION 制造商全稱:OMNIVISION 功能描述:optimal low-light sensitivity and pixel performance for video conferencing cameras in 3G mobile phones |
| OV7121 | 制造商:Omnivision Technologies Inc 功能描述: |
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