LUPA-4000-EVAL Cypress Semiconductor Corp, LUPA-4000-EVAL Datasheet - Page 19

• Manufacturer Part Number: LUPA-4000-EVAL
• Manufacturer: Cypress Semiconductor Corp

Specifications of LUPA-4000-EVAL

• Lead Free Status / RoHS Status: Supplier Unconfirmed

Table 8. Readout Timing Specifications with Precharching of Buses
Serial Peripheral Interface
The SPI is required to upload different modes.
Table 9. SPI Parameters
When all zeros are loaded into the SPI, the sensor starts at pixel 0,0. The scanning is from left to right and from top to bottom. There
is no sub sampling or voltage averaging and only one output is used. The DAC has the lowest level at its output. When using sub
sampling, only even X-addresses should be applied.
Document Number: 38-05712 Rev. *F
Y-direction
Y-address
X-voltage averaging enable
X-subsampling
X-direction
X-address
Number of output amplifiers
DAC
Load_addr
Spi_in
Clock_spi
Symbol
a
b
d
e
g
h
c
f
Parameter
i
Unity Ce ll
D
D
C
C
To sensor
Q
Q
Figure 22. SPI Block Diagram and Timing
Table 9
spi_in
Clock_spi
Voltage averaging
Sync_Y-Clock_Y
Clock_Y-Sync_Y
Sync_X-Clock_X
0
1 to 10
11
12
13
14 to 23
24
25 to 31
Prebus pulse
NoRowSel
Clock_spi
Load_addr
Sync_Y
Pre_col
spi_in
Sh_col
Name
shows the parameters and their bit position
Load_addr
Bit 31
Bit #
B0
32 outputs to sensor
Entire uploadable block
B1
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
200 ns (or cst low, depending on timing mode)
B2
As short as possible
Remarks
>20 ns
>50 ns
>50 ns
>20 ns
Value
>0 ns
>0 ns
>0 ns
CYIL1SM4000AA
B31
Bit 0
command
applied to
sensor
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