MT9V012 Micron, MT9V012 Datasheet - Page 28

• 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
0x24 (36) Extra Reset
0x2B (43) Green1 Gain
0x2C (44) Blue Gain
0x2D (45) Red Gain
0x2E (46) Green2 Gain
0x2F (47) Global Gain
0x30 (48) Row Noise
13:0
11:9
11:9
11:9
11:9
11:0
Bit
6:0
8:7
6:0
8:7
6:0
8:7
6:0
8:7
9:0
15
14
15
10
Flash
Reserved
Next Row Reset
Reserved
Initial Gain
Analog Gain
Digital Gain
Initial Gain
Analog Gain
Digital Gain
Initial Gain
Analog Gain
Digital Gain
Initial Gain
Analog Gain
Digital Gain
Global Gain
Row Noise
Constant
Enable
Correction
Register Description (continued)
Reflects the current state of the FLASH output. Read-only.
Read-only.
When set, and the integration time is less than one frame
time; row (n + 1) is reset immediately prior to resetting row
(n). This is intended to prevent blooming across rows under
conditions of very high illumination.
Read-only.
Initial gain = bits [6:0] * 0.03125.
Analog gain = (bit [8] + 1) * (bit [7] + 1) * initial gain (each
bit gives 2x gain).
Total gain = (bit [9]+ 1) * (bit [10] + 1) * (bit [11]+ 1) * analog
gain (each bit gives 2x gain).
Initial gain = bits [6:0] * 0.03125.
Analog gain = (bit [8] + 1) * (bit [7] + 1) * initial gain (each
bit gives 2x gain).
Total gain = (bit [9] + 1) * (bit [10] + 1) * (bit [11]+ 1) * analog
gain (each bit gives 2x gain).
Initial gain = bits [6:0] * 0.03125.
Analog gain = (bit [8] + 1) * (bit [7] + 1) * initial gain (each
bit gives 2x gain).
Total gain = (bit [9] + 1) * (bit [10] + 1) * (bit [11]+ 1) * analog
gain (each bit gives 2x gain).
Initial gain = bits [6:0] * 0.03125.
Analog gain = (bit [8] + 1) * (bit [7] + 1) * initial gain (each
bit gives 2x gain).
Total gain = (bit [9] + 1) * (bit [10] + 1) * (bit [11]+ 1) * analog
gain (each bit gives 2x gain).
This register can be used to set all four gains at once. When
read, it will return the value stored in Reg0x2B.
Constant, used in the row noise cancellation algorithm. It
should be set to the dark level targeted by the black level
algorithm, plus the noise expected between the averaged
values of dark columns. At default, the constant is set to 42
LSB.
1 = Enable row noise cancellation algorithm. When this bit is
set, the average value of the dark columns readout will be
used as a correction for the whole row. The dark average
will be subtracted from each pixel on the row, then a
constant will be added (bits 9:0).
0 = normal operation.
Bit Description
MT9V012 - 1/6-Inch VGA CMOS Digital Image Sensor
28
Micron Technology, Inc., reserves the right to change products or specifications without notice.
Default
(hex)
2A
20
40
20
20
20
0
0
1
0
0
0
0
0
0
0
0
0
1
©2004 Micron Technology, Inc. All rights reserved.
to Frame
Sync’d
Start
N
N
N
N
N
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Preliminary
Registers
Frame
Bad
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
Y
Y
‡