mt9v011p11st Micron Semiconductor Products, mt9v011p11st Datasheet - Page 19

• Manufacturer Part Number: mt9v011p11st
• Description: 1/4-inch Vga Cmos Active-pixel Digital Image Sensor
• Manufacturer: Micron Semiconductor Products

T able 7:
09005aef80c6407f
MT9V011_external_DS_2.fm - Rev. A 8/04 EN
REGISTER
Read Mode
This register is used to control many aspects of t he readout of the sensor.
Gain Settings
The gain can be individually controlled for each color in the Bayer pattern.
0x2D
0x2B
0x2C
0x20
0x2E
To preserve a right-reading image and the correct color order, all four of t hese bits should be set to “1” to
invert the image.
9,10
9,10
9,10
9,10
7, 8
7, 8
7, 8
7, 8
BIT
0-6
0-6
0-6
0-6
10
11
14
15
Register Description (continued)
0
3
4
9
5
7
Show bad frames:
1 = output all frames (including bad frames).
0 = only output good frames. A bad frame is defined as the first frame following a change to:
window size or position, horizontal blanking, pixel clock speed, zoom, row or column skip, or
mirroring.
Column skip:
1= read out two columns, and then skip two columns (as with rows).
0 = normal readout.
Row skip:
1 = read out two rows, and then skip t wo rows (i.e. row 8, row 9, row 12, row 13…).
0 = normal readout.
"Continuous" Line Valid (continue producing line valid during vertical blanking).
0 = Normal Line Valid (default, no line valid during vertical blanking).
Line valid = "Continuous" Line Valid XOR Frame Valid.
0 = Normal Line Valid. Ineffective if Continuous Line Valid is set.
The four dark rows 0 t o 3 are read out in addition to the valid data.
0 = normal readout.
1 = readout starting 1 column later.
0 = normal readout.
1 = readout starting 1 row later.
0 = normal readout.
1 = read out from right to left (mirrored).
0 = normal readout.
1 = read out from bottom t o top (upside down).
0 = normal readout.
Green1 Gain
Initial Gain = bit s (6:0) x 0.03125.
Analog Gain = (Bit 8 + 1) x (Bit 7 + 1) x Initial Gain (each bit gives 2x gain).
9, 10: Total Gain = (Bit 9 + 1) x (Bit 10 + 1) x Analog Gain (each bit gives 2x gain).
Blue Gain
Initial Gain = bit s (6-0) x 0.03125.
Analog gain = (Bit 8 + 1) x (Bit 7 + 1) x Initial Gain (each bit gives 2x gain).
9, 10: Total Gain = (Bit 9 + 1) x (Bit 10 + 1) x Analog Gain (each bit gives 2x gain).
Red gain
Initial Gain = bit s (6-0) x 0.03125.
Analog Gain = (Bit 8 + 1) x (Bit 7 + 1) x Initial Gain (each bit gives 2x gain).
9, 10: Total Gain = (Bit 9 + 1) x (Bit 10 + 1) x Analog Gain (each bit gives 2x gain).
Green2 gain
Initial Gain = bit s (6-0) x 0.03125.
Analog Gain = (Bit 8 + 1) x (Bit 7 + 1) x Initial Gain (each bit gives 2x gain).
9, 10: Total gain = (Bit 9 + 1) x (Bit 10 + 1) x Analog Gain (each bit gives 2x gain).
—
—
default = 0x0020 (32) = 1x gain.
default = 0x0020 (32) = 1x gain.
—
—
default = 0x0020 (32) = 1x gain.
default = 0x0020 (32) = 1x gain.
19
1/4-INCH VGA CMOS ACTIVE-PIXEL
DESCRIPTION
Micron Technology, Inc., reserves the right to change products or specifications without notice.
DIGITAL IMAGE SENSOR
©2004 Micron Technology, Inc.
Preliminary