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參數(shù)資料
| 型號： | OV7411P |
| 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 |
| 文件頁數(shù)： | 13/18頁 |
| 文件大?。?/td> | 247K |
| 代理商： | OV7411P |
December 7, 1999
Version 1.4
13
OV7910P/OV7410P/OV7411P
SINGLE IC CMOS COLOR & B/W PAL ANALOG CAMERAS
O
MNI
V
ISION
T
ECHNOLOGIES
, Inc.
Preliminary
in one bus cycle. A multi-byte cycle overwrites its original subaddress; therefore, if a read cycle immediately follows
a multi-byte cycle, you must insert a single-byte write cycle that provides a new subaddress.
The OV7910P/OV7410P/OV7411P supports a single slave ID. The ID is preset to 80 write and 81 for read.
In the write cycle, the second byte in I
2
C bus is the subaddress for selecting the individual on-chip registers, and
the third byte is the data associated with this register. Writing to an undefined subaddress is ignored.
In the read cycle, the second byte is the data associated with the previous stored subaddress. Reading of unde-
fined subaddresses returns unknown data.
2.2
Register Set
The table below provides a list and description of available I
2
C registers contained in the OV7910P/OV7410P/
OV7411P image sensor.
Table 5. I
2
C Registers
Subad-
dress
(hex)
Register
Default
(hex)
Read/
Write
Descriptions
00
Gain[6:0]
00
RW
GC[7] - unimplemented bit, returns ‘X’ when read.
GC[6:0] – Storage for the current AGC Gain setting.
This register is updated automatically. If AGC is enabled, the internal control stores the optimal
gain value in this register. IF AGC is not enabled, a “00” is stored in this register.
Storage for the current blue channel setting for white balance control.
BLU[7] – “0” decrease gain, “1” increase gain.
BLU[6:0] – blue channel gain balance value.
01
Blue[7:0]
80
RW
Note:
This function is not available on the OV7410P/OV7411P Image Sensor.
Storage for the current red channel setting for white balance control.
RED[7] – “0” decrease gain, “1” increase gain.
RED[6:0] – red channel balance value.
02
Red[7:0]
80
RW
Note:
This function is not available on the OV7410P/OV7411P Image Sensor.
SAT[7:0] – saturation adjustment. “FFh”- highest, “00h”-lowest
03
Sat
D0
RW
Note:
This function is not available on the OV7410P/OV7411P Image Sensor.
CTR[7:0] – contrast adjustment. “FFh”-highest, “00h”-lowest
BRT[7:0] – brightness adjustment. “FFh”-highest,“00h”-lowest
reserved
BBS[7:6] – rsvd (BBS[7:6] = 00)
BBS[5:0] – blue channel bias value.
04
05
06
Cnt
Brt
00
80
B2
RW
RW
RW
Rsvd06
07
Blue Bias
20
RW
This value defines the fine tune adjustment for the blue tint in the white balance control. This reg-
ister is the manual control portion of the AWB control
Note:
This function is not available on the OV7410P/OV7411P Image Sensor.
Figure 5. Data Transfer on the I
2
C Bus
The OV7910P/OV7410P/OV7411P I
2
C supports multi-
byte write and multi-byte read. The master must supply
the subaddress. in the write cycle, but not in the read
cycle. Therefore, the OV7910P/OV7410P/OV7411P
takes the read subaddress from the previous write
cycle. In multi-byte write or multi-byte read cycles, the
subaddress is automatically increment after the first
data byte so that continuous locations can be accessed
SDA
SCL
S
A
SLAVE ID
RW
SUB ADD
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