MT9V012 Micron, MT9V012 Datasheet - Page 30

• Manufacturer Part Number: MT9V012
• Description: 1/6-Inch VGA CMOS Digital Image Sensor
• Manufacturer: Micron

Table 6:
PDF: 814eb99f/Source: 8175e929
MT9V012_2.fm - Rev. B 2/05 EN
0x61 (97) Green1 Calibration Value
0x62 (98) Blue Calibration Value
0x63 (99) Red Calibration Value
Bit
7:5
8:0
8:0
8:0
12
15
8
Frames to
Average Over
Sweep Mode
Recalculate
Disable Rapid
Sweep Mode
Green1
Calibration
Value
Blue Calibration
Value
Red Calibration
Value
Register Description (continued)
Two to the power of this value decide how many frames to
average over when the black level algorithm is in the
averaging mode. In this mode, the running frame average
will be calculated from the following formula:
Running frame average = Old running frame average - (old
running frame average)/2
When set, the calibration value will be increased by one
every frame, and all channels will be the same. This can be
used to get a ramp input to the ADC from the calibration
DACs.
When set, the rapid sweep mode will be triggered if
enabled, and the running frame average will be reset to the
current frame average. This bit is write - 1 but always reads
back as “0.”
Disables the rapid sweep mode in the black level algorithm.
The averaging mode will still be enabled.
Analog calibration offset for green1 pixels, represented as a
two’s complement signed 8-bit value (if [8] is clear, the offset
is positive and the magnitude is given by [7:0]. If [8] is set,
the offset is negative and the magnitude is given by Not
([7:0]) + 1). If Reg0x60[0] = 0, this register is read-only and
returns the current value computed by the black level
calibration algorithm. If Reg0x60[0] = 1, this register is read/
write, and can be used to set the calibration offset manually.
Green1 pixels share rows with red pixels.
Analog calibration offset for blue pixels, represented as a
two’s complement signed 8-bit value (if [8] is clear, the offset
is positive and the magnitude is given by [7:0]. If [8] is set,
the offset is negative and the magnitude is given by Not
([7:0]) + 1). If Reg0x60[0] = 0, this register is read-only and
returns the current value computed by the black level
calibration algorithm. If Reg0x60[0] = 1, this register is read/
write and can be used to set the calibration offset manually.
Analog calibration offset for red pixels, represented as a
two’s complement signed 8-bit value (if [8] is clear, the offset
is positive and the magnitude is given by [7:0]. If [8] is set,
the offset is negative and the magnitude is given by Not
([7:0]) + 1). If Reg0x60[0] = 0, this register is read-only and
returns the current value computed by the black level
calibration algorithm. If Reg0x60[0] = 1, this register is read/
write and can be used to set the calibration offset manually.
Bit Description
MT9V012 - 1/6-Inch VGA CMOS Digital Image Sensor
n
+ (new frame average)/2
30
Micron Technology, Inc., reserves the right to change products or specifications without notice.
n
.
Default
(hex)
4
0
0
0
0
0
0
©2004 Micron Technology, Inc. All rights reserved.
to Frame
Sync’d
Start
N
N
N
N
N
Y
Y
Preliminary
Registers
Frame
Bad
N
N
N
N
Y
Y
Y
‡