PYTHON25K Datasheet, PDF (42/87 Pages) ON Semiconductor – PYTHON 25K/16K/12K/10K Global Shutter CMOS Image Sensors

NOIP1SN025KA, NOIP1SN016KA, NOIP1SN012KA, NOIP1SN010KA
LVDS Output Multiplexing
The PYTHON sensor contains a function for
down−multiplexing the output channels. Using this
function, one may for instance use the PYTHON XK with
16, 8 or 4 datachannels instead of 32 data channels.
Enabling the down−multiplexing is done through the
muxmode[1:0] pins. Connecting these pins to ground
disables all down−multiplexing. Configuring higher values
sets a higher degree of down−multiplexing. The channels
that are used per degree of multiplexing are shown in Table
27. The unused data channels are powered down and will not
send any data.
Note the maximum frequency for the SPI interface needs
to scale with the amount of LVDS channels as described in
Table 5.
Table 27. LVDS CHANNEL MULTIPLEXING
No. of
LVDS
outputs
Channels Multiplexed
Output
Channel
No. of
Repetition
of Sync
Codes
32 No multiplexing
Ch0 to
1
Ch31
16 Ch0, Ch1
Ch0
2
Ch2, Ch3
Ch2
Ch4, Ch5
Ch4
Ch6, Ch7
Ch6
Ch8, Ch9
Ch8
Ch10, Ch11
Ch10
Ch12, Ch13
Ch12
Ch14, Ch15
Ch14
Ch16, Ch17
Ch16
Ch18, Ch19
Ch18
Ch20, Ch21
Ch20
Ch22, Ch23
Ch22
Ch24, Ch25
Ch24
Ch26, Ch27
Ch26
Ch28, Ch29
Ch28
Ch30, Ch31
Ch30
8
Ch0, Ch1, Ch2, Ch3
Ch0
4
Ch4, Ch5, Ch6, Ch7
Ch4
Ch8, Ch9, Ch10, Ch11
Ch8
Ch12, Ch13, Ch14, Ch15 Ch12
Ch16, Ch17, Ch18, Ch19 Ch16
Ch20, Ch21, Ch22, Ch23 Ch20
Ch24, Ch25, Ch26, Ch27 Ch24
Ch28, Ch29, Ch30, Ch31 Ch28
4
Ch0, Ch1, Ch2, Ch3,
Ch0
8
Ch4, Ch5, Ch6, Ch7
Ch8, Ch9, Ch10, Ch11, Ch8
Ch12, Ch13, Ch14, Ch15
Ch16, Ch17, Ch18, Ch19, Ch16
Ch20, Ch21, Ch22, Ch23
Ch24, Ch25, Ch26, Ch27, Ch24
Ch28, Ch29, Ch30, Ch31
Table 28 shows how to select the desired output multiplex
mode and describes the required register upload needed to
guarantee the correct functionality of the sensor.
Table 28. OUTPUT MULTIPLEX MODE SELECTION
muxmode1 muxmode0
(Pin F24) (Pin F25)
Number of
Output
LVDS
Channels
Required Upload
Address Data
0
0
32
211 0x0E5B
0
3.3 V
16
211 0x0E4B
3.3 V
0
8
211 0x0E3B
3.3 V
3.3 V
4
211 0x0E2B
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