參數(shù)資料
型號(hào): H1A424M167
廠商: HYNIX SEMICONDUCTOR INC
元件分類: 模擬信號(hào)調(diào)理
英文描述: Image Signal Processor for Hyundai CMOS Image Sensor
中文描述: SPECIALTY ANALOG CIRCUIT, PQFP64
封裝: 10 X 10 MM, 1.40 MM HEIGHT, PLASTIC, LQFP-64
文件頁數(shù): 34/47頁
文件大小: 374K
代理商: H1A424M167
Hyundai Electronics Industries Co., Ltd.
H1A424M167
1999 October 11 Page 34
0 : Every 2-frame.
1 : Every 3-frame.
AE Lock Control Register[ACh]
[7]
[6]
This Register is used for AE Lock Control. The difference between Y target and current
frame Y mean is used for AE lock/unlock scheme. As the difference is smaller, we
can get the close brightness we want . The difference is compared with AE lock range
value and AE unlock range value. If current state is out of target brightness, AE logic
change the integration time of CIS to make the difference less than the lock range
value. If the difference is less than lock range value, we consider exposure target is
achieved and no more integration time control made. After getting target brightness we
have to compare the difference with unlock range value to check the image is out of
target brightness or not. If the difference is larger than the unlock range value, we have
to change integration time again to adjust frame brightness. This register is valid only
when AE pixel mode is enabled.
[ 7 ]
AE Lock_Function Enable Bit
0 : Lock, Unlock Function Disable . In this case, AE Unlock Range is used for
all locking and unlocking. AE lock range is not used.
1 : Lock, Unlock Function Enable. In this case, AE lock range and AE unlock
range are used for locking and unlocking each.
[ 6..4 ]
AE Lock Range
[ 3..0 ]
AE Unlock Range
Y-target Value Register[ADh]
[7]
[6]
[5]
[4]
[ 7..0 ]
AE Target Luminous Value Register.
[B5h]
[0]
[5]
[4]
[3]
[2]
[1]
[R/W]
[80h]
[0]
[R/W]
[3]
[2]
[1]
Reset Level Control Register[AEh]
[7]
[6]
[20h]
[0]
[5]
[4]
[3]
[2]
[1]
[ 7..0 ] Threshold Pixel Count Value of the Invalid Reference Value. [R/W]
This Register is used to set the maximum Invalid Pixel Count, produced from CIS
sampling(data Read). So, as the small value of this Register, we can get the fine scene.
This register valid only when ARC Function(A0h[4]) is enabled.
Exposure Time Limitation Value Upper Byte[B0h]
[7]
[6]
[5]
[14h]
[0]
[4]
[3]
[2]
[1]
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