MT9D115
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14
Figure 15. Pixel Readout (x_odd_inc = 1, y_odd_inc = 3)
X Incrementing
Y Incrementing
Figure 16. Pixel Readout (x_odd_inc = 3, y_odd_inc = 3)
X Incrementing
Y Incrementing
Programming Restrictions when Skipping
When skipping is enabled as a viewfinder mode, and the
sensor is switched back and forth between full resolution and
skipping, keep line_length_pck constant. This allows the
same integration times to be used in each mode.
When subsampling is enabled, it might be necessary to
adjust the x_addr_end and y_addr_end settings. The values
for these registers must correspond with rows/ columns that
form part of the subsampling sequence. Use the following
rules to make the adjustment.
remainder + (addr_end * addr_start ) 1) AND 4
(eq. 3)
if (remainder ++ 0) addr_end + addr_end * 2
(eq. 4)
Table 6 shows the row address sequencing for normal and
subsampled (with y_odd_inc = 3) readout. The same
sequencing applies to column addresses for subsampled
readout. Because the subsampling sequence only reads half
of the rows and columns, there are two possible subsampling
sequences, depending upon the alignment of the start
address.
