Datasheet

Confidential for truly Only
11.03.2009 PRELIMINARY SPECIFICATION proprietary to OmniVision Technologies
7-41
0x518E BLUE GAIN LIMIT 0xF0 RW
Bit[7:4]: blue_gain_up_limit
Bit[3:0]: blue_gain_dn_limit
They are only the highest 4
bits of limitation.
Maximum blue gain is
{blue_gan_up_limit,FF}
Minimum blue gain is
{blue_gain_dn_limit,00}
0x518F FRAME CNT 0x00 RW
Bit[7:4]: Not used
Bit[3:0]: awb_frame_cnt
0x51DF BASE MAN 0x10 RW Bit[7:0]: base_man
table 7-17 average registers (sheet 1 of 2)
address register name
default
value R/W description
0x5680 X START 0x00 RW
Bit[7:5]: Not used
Bit[4:0]: x_start[11:8]
Horizontal start position for average
window high byte
0x5681 X START 0x00 RW
Bit[7:0]: x_start[7:0]
Horizontal start position for average
window low byte
0x5682 Y START 0x00 RW
Bit[7:4]: Not used
Bit[3:0]: y_start[10:8]
Vertical start position for average
window low byte
0x5683 Y START 0x00 RW
Bit[7:0]: y_start[7:0]
Vertical start position for average
window low byte
0x5684 X WINDOW 0x0A RW
Bit[7:5]: Not used
Bit[4:0]: Window X in manual average
window mode high byte
0x5685 X WINDOW 0x20 RW
Bit[7:0]: Window X in manual average
window mode low byte
0x5686 Y WINDOW 0x07 RW
Bit[7:4]: Not used
Bit[3:0]: Window Y in manual average
window mode high byte
0x5687 Y WINDOW 0x98 RW
Bit[7:0]: Window Y low byte in manual
average window mode
0x5688 WEIGHT00 0x11 RW
Bit[7:4]: window1_weight
Bit[3:0]: window0_weight
table 7-16 AWB registers (sheet 3 of 3)
address register name
default
value R/W description