AR0542 Datasheet, PDF (20/81 Pages) ON Semiconductor – 5 Mp CMOS Digital Image Sensor

AR0542: 1/4-Inch CMOS Digital Image Sensor
Programming Restrictions
Programming Restrictions
Table 6 shows a list of programming rules that must be adhered to for correct operation
of the AR0542. It is recommended that these rules are encoded into the device driver
stack—either implicitly or explicitly.
Table 5:
Definitions for Programming Rules
Name
xskip
yskip
Definition
xskip = 1 if x_odd_inc = 1; xskip = 2 if x_odd_inc = 3; xskip = 4 if x_odd_inc = 7
yskip = 1 if y_odd_inc = 1; yskip = 2 if y_odd_inc = 3; yskip = 4 if y_odd_inc = 7
Table 6:
Programming Rules
Parameter
coarse_integration_time
fine_integration_time
digital_gain_*
digital_gain_* is an integer multiple of
digital_gain_step_size
frame_length_lines
line_length_pck
frame_length_lines
x_addr_start
(must be an even number)
x_addr_end
(must be an odd number)
(x_addr_end – x_addr_start +
x_odd_inc)
y_addr_start
(must be an even number)
y_addr_end
(must be an odd number)
(y_addr_end – y_addr_start +
y_odd_inc)
x_even_inc
(must be an even number)
y_even_inc
(must be an even number)
x_odd_inc
(must be an odd number)
y_odd_inc
(must be an odd number)
scale_m
scale_n
Minimum Value
4*
fine_integration_time_min
digital_gain_min
min_frame_length_lines
min_line_length_pck
((x_addr_end - x_addr_start +
x_odd_inc)/xskip) +
min_line_blanking_pck
((y_addr_end - y_addr_start +
y_odd_inc)/yskip) +
min_frame_blanking_lines
x_addr_min
x_addr_start
must be positive
y_addr_min
y_addr_start
must be positive
min_even_inc
min_even_inc
min_odd_inc
min_odd_inc
scaler_m_min
scaler_n_min
Maximum Value
frame_length_lines -
coarse_integration_time_max_margin
line_length_pck -
fine_integration_time_max_margin
digital_gain_max
max_frame_length_lines
max_line_length_pck
x_addr_max
x_addr_max
must be positive
y_addr_max
y_addr_max
must be positive
max_even_inc
max_even_inc
max_odd_inc
max_odd_inc
scaler_m_max
scaler_n_max
AR0542_DS Rev. H Pub. 5/15 EN
20
©Semiconductor Components Industries, LLC, 2015.