LUPA-4000 CYPRESS [Cypress Semiconductor], LUPA-4000 Datasheet - Page 35

• Manufacturer Part Number: LUPA-4000
• Description: 4M Pixel CMOS Image Sensor
• Manufacturer: CYPRESS [Cypress Semiconductor]

4.3 Serial-Parallel-Interface (SPI)
The SPI is required to upload the different modes. Table 15 shows the parameters and
there bit position
Parameter
Y-direction
Y-address
X-voltage averaging enable
X-subsampling
X-direction
X-address
Nr output amplifiers
DAC
When all zeros are loaded into the SPI, the sensor will start at pixel 0,0. The scanning
will be from left to right and from top to bottom. There will be no sub-sampling or
voltage averaging and only one output is used. The DAC will have the lowest level at
its output.
When using sub sampling, only even X-addresses may be applied.
Load_addr
Spi_in
Clock_spi
Contact:
Cypress Semiconductor Corporation
LUPA-4000
Data Sheet
[e-mail]
Unity Ce ll
D
D
C
C
To sensor
Q
Q
Figure 20: SPI block diagram and timing
Document #: 38-05712 Rev.**(Revision 1.2 )
spi_in
Clock_spi
Table 15: SPI parameters
Clock_spi
Load_addr
3901 North First Street
spi_in
Bit nr.
0
1-10
11
12
13
14-23
24
25-31
Load_addr
Bit 31
B0
32 outputs to sensor
Entire uploadable block
Remarks
1: from bottom to top
Bit 1 is LSB
1: Enabled
1: Subsampling
0: From left to right
Bit 14 is LSB
0: 1 Output
Bit 25 is LSB
B1
San Jose, CA 95134
B2
Page 35 of 49
B31
408-943-2600
Bit 0
command
applied to
sensor