Datasheet

Confidential for truly Only
11.03.2009 PRELIMINARY SPECIFICATION proprietary to OmniVision Technologies
7-11
table 7-6 AEC/AGC 2 registers (sheet 1 of 3)
address register name
default
value R/W description
0x3A00 AEC CTRL00 0x78 RW
Bit[7]: Not used
Bit[6]: Less one line mode
Bit[5]: Band function
Bit[4]: Band low limit mode
Bit[3]: start_sel
Bit[2]: Night mode
Bit[1]: Not used
Bit[0]: Freeze
0x3A01 MIN EXPO 0x01 RW Bit[7:0]: min expo
0x3A02 MAX EXPO 60 0x3D RW Bit[7:0]: max expo[15:8]
0x3A03 MAX EXPO 60 0x80 RW Bit[7:0]: max expo[7:0]
0x3A05 AEC CTRL05 0x30 RW
Bit[7]: f50_reverse
0: Hold 50, 60Hz detect input
1: Switch 50, 60Hz detect input
Bit[6]: frame_insert
0: In night mode, insert frame
disable
1: In night mode, insert frame
enable
Bit[5]: step_auto_en
0: Step manual mode
1: Step auto_mode
Bit[4:0]: step_auto_ratio
In step auto mode, set the step
ratio setting to adjust speed
0x3A06 AEC CTRL06 0x10 RW
Bit[7:5]: Not used
Bit[4:0]: step_man1
Step manual
Increase mode fast step
0x3A07 AEC CTRL07 0x18 RW
Bit[7:4]: step_man2
Step manual, slow step
Bit[3:0]: step_man3
Step manual, decrease mode fast
step
0x3A08 B50 STEP 0x01 RW
Bit[7:2]: Not used
Bit[1:0]: b50_step[9:8]
0x3A09 B50 STEP 0x27 RW Bit[7:0]: b50_step[7:0]
0x3A0A B60 STEP 0x00 RW
Bit[7:2]: Not used
Bit[1:0]: b60_step[9:8]
0x3A0B B60 STEP 0xF6 RW Bit[7:0]: b60_step[7:0]