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Unibrain Fire-i 501/511/601/701/702/810 Operation Manual Page 28
Status Control Register
Address Name Field Bit Description
800h BRIGHTNESS Presence_Inq
[0] Presence of this feature
0:N/A 1:Available
Abs_Control [1] Absolute value control
0: Control with value in Value field
1: Control with value in Absolute value
CSR if this bit =1, value in Value filed is ignored
- [2..4] Reserved
One_Push [5] Write ‘1’: begin to work(Self cleared after operation)
Read : Value=’1’ in operation
Value =’0’ not in operation
If A_M_Mode=1, this bit is ignored
On/OFF [6] Write : ON or OFF this feature
Read : read a status
0: OFF, 1: ON
If this bit=0, other fields will be read only.
A_M_Mode [7] Write : Set the mode
Read : Read a current mode
0: Manual, 1:Auto
- [8..19] Reserved
Value [20..31] Minimum value for this feature control
3.2. Auto Exposure Control
The automatic shutter/gain mode is based on a feedback loop which calculates the average pixel luminance. Then the
average is compared with the exposure reference value, adjusting shutter and gain accordingly. This feature is similar
to “Contrast Control”
Inquiry Register
Address Name Field Bit Description
504h AUTO_EXP
OSURE_INQ
Presence_Inq [0] Presence of this feature
Abs_Control_Inq [1] Capability of control with absolute value
- [2] Reserved
One_Push_Inq [3] One push auto mode(Controlled automatically by
camera only once)
ReadOut_Inq [4] Capability of reading the value of this feature
On/Off_Inq [5] Capability of switching this feature On and OFF
Auto_Inq [6] Auto mode (Controlled automatically by camera)
Manual_Inq [7] Manual mode(Controlled by user)
Min_Value [8..19] Minimum value for this feature control
Max_Value [20..31] Maximum value for this feature control
Status Control Register
Address Name Field Bit Description
804h AUTO_EXP
OSURE
Presence_Inq [0] Presence of this feature
0:N/A 1:Available
Abs_Control [1] Absolute value control
0: Control with value in the Value field
1: Control with value in the Absolute value CSR
If this bit = 1, value in the Value field is ignored.