Datasheet

Confidential for truly Only
11.03.2009 PRELIMINARY SPECIFICATION proprietary to OmniVision Technologies
5-7
0x5180 AWB CTRL 0x00 RW
Bit[6]: fast_awb
0: Disable fast AWB calculation
function
1: Enable fast AWB calculation
function
Bit[5]: freeze_gain_en
When it is enabled, the output
AWB gains will be input AWB
gains
Bit[4]: freeze_sum_en
When it is set, the sums and
averages value will be same as
previous frame
Bit[3]: gain_man_en
0: Output calculated gains
1: Output manual gains set by
registers
Bit[2]: start_sel
0: Select the last HREF falling
edge of before gain input as
calculated start signal
1: Select the last HREF falling
edge of after gain input as
calculated start signal
0x5181 AWB DELTA 0x20 RW
Bit[7]: delta_opt
Bit[6]: base_man_en
Bit[5:0]: awb_delta
Delta value to increase or
decrease the gains
0x5182 STABLE RANGE 0x04 RW Bit[7:0]: stable_range
0x5183 STABLE RANGEW 0x08 RW
Bit[7:0]: stable_rangew
Wide stable range
0x5184 HSIZE_MAN 0x01 RW Bit[3:0]: hsize_man[11:8]
0x5185 HSIZE_MAN 0xE0 RW Bit[7:0]: hsize_man[7:0]
0x5186
MANUAL RED GAIN
MSB
0x04 RW Bit[3:0]: red_gain_man[11:8]
0x5187
MANUAL RED GAIN
LSB
0x00 RW Bit[7:0]: red_gain_man[7:0]
0x5188
MANUAL GREEN
GAIN MSB
0x04 RW Bit[3:0]: grn_gain_man[11:8]
0x5189
MANUAL GREEN
GAIN LSB
0x00 RW Bit[7:0]: grn_gain_man[7:0]
table 5-4 AWB control registers (sheet 2 of 3)
address register name
default
value R/W description