NOIL1SN3000A
Precharge_timer (b0000010 / d2)
The precharge_timer register controls the length of the
pixel precharge pulse as described in Frame Overhead Time
on page 38. The pixel precharge length is expressed in the
number of sensor clock periods by the following formula:
Pixel precharge length = precharge_timer x 4
Table 18. PRECHARGE TIMER REGISTER
Fot_timer (b0000101 / d5)
The fot_timer register controls the length of the FOT as
described in Frame Overhead Time on page 38. The length
of the FOT is expressed in the number of sensor clock
periods by the following formula:
FOT length = fot_timer x 4 + 2
The relation between the frame overhead time and the
FOT pin is described in FOT Pin on page 39. Fot_timer must
Value
00000000
Effect
Pixel precharge length is 1 sensor clock
be larger than vmem_timer.
Table 21. FOT_TIMER REGISTER
xxxxxxxx
Pixel precharge length is <N x 4> sensor
clocks (<N x 4> x 4 master clocks), where N
is the register value
Value
00000000
Invalid setting
Effect
On startup 00010011
Sample_timer (b0000011 / d3)
The sample_timer register controls the length of the pixel
sample pulse as described in Frame Overhead Time on page
xxxxxxxx
On startup
FOT length is <N x 4 + 2> sensor clocks
(<N x 4 + 2> x 4 master clocks), where N is
the register value
00101000
38. The length of the pixel sample is expressed in the number
of sensor clock periods by the following formula:
Pixel sample length = sample_timer x 4
Sample_timer must be equal to or larger than
precharge_timer.
Table 19. SAMPLE TIMER REGISTER
Nb_of_kernels (b0000110 / d6)
This register controls the window size in X. The value of
the register determines the number of pixel kernels that is
readout every line. The maximum number of kernels to
readout is 53. The minimum number of kernels to readout is
four.
Bits <7:6> are ignored.
Value
00000000
xxxxxxxx
On startup
Effect
Pixel sample length is two sensor clock
Pixel sample length is <N x 4> sensor clocks
(<N x 4> x 4 master clocks), where N is the
register value
00011111
Table 22. NB_OF_KERNELS REGISTER
Value Bit<5:0> Effect
000100 Window size in X is 4 kernels
000101 Window size in X is 5 kernels
Vmem_timer (b0000100 / d4)
The vmem_timer register controls the length of the pixel
vmem pulse as described in Frame Overhead Time on page
110101
On startup
Window size in X is 53 kernels
110101
38. The length of the pixel vmem is expressed in the number
of sensor clock periods by the following formula:
Pixel vmem length = vmem_timer x 4
Vmem_timer must be equal to or larger than
sample_timer.
Table 20. VMEM TIMER REGISTER
Y_start (b0000111 / d7 and b0001000 / d8)
The Y_start register contains the row address of the Y start
pointer. Because a row address is 11-bit wide, the Y_start
address is split over two registers: Y_start<10:8> and
Y_start<7:0>. Y_start<10:8> contains 3 MSBs of the 11-bit
address, and Y_start<7:0> contains 8 LSBs of the address.
Y_start<10:0> must not be larger than 1709.
Value
00000000
xxxxxxxx
Effect
Pixel vmem length is four sensor clock.
Pixel vmem length is <N x 4> sensor clocks
(<N x 4> x 4 master clocks), where N is the
register value
Table 23. Y_START REGISTER
Value
Bit<2:0>
Y_start<7:0> (b0000111 / d7)
Effect
On startup
00100010
On startup
00000000
Y_start<10:8> (b0001000 / d8): Bits<7:3> are ignored
On startup
http://onsemi.com
22
00000000
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