CYIH1SM1000AA-HHCS Cypress Semiconductor Corp, CYIH1SM1000AA-HHCS Datasheet - Page 52

• Manufacturer Part Number: CYIH1SM1000AA-HHCS
• Description: IC SPACE IMAGE SENSOR 84-JLCC
• Manufacturer: Cypress Semiconductor Corp

Specifications of CYIH1SM1000AA-HHCS

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

Non-Destructive Readout Timing Diagram
In describing this mode the unit of timing is conveniently chosen to equal the time needed to read out a line of pixels. Hence, the
exposure time tEXP can be expressed as an equivalent number of lines. (Note however that the user is under no obligation to link
tEXP to the line read time: tEXP can be chosen arbitrarily as its timing and nature are only dependent on the external system controlling
the HAS).
Table 17. Threads of Operation for Non-destructive Readout with Off-chip CDS
Proper operation can be attained by using just one Y pointer register, YRD or YRST, for all of the frame's phases. The above operation
scheme is just an example, using YRST for the frame reset phase.
Document Number: 001-54123 Rev. *A
init
clear frame
read black levels
exposure
read signal levels
Figure 36. CDS/NDR Sequence: First array is reset completely with YRST. Then black levels are read with YRD.
Comment
Load registers Y1 and X1 with the window start coordinates
initialize YRD with Y1
.do nothing
for YRD = Y1 to Y2 loop
.select line YRD
.operate column amplifiers for CDS/NDR, black levels
.read pixels X1 to X2
.advance YRD
end loop
wait for time tEXP
for YRD = Y1 to Y2 loop
.select line YRD
.operate column amplifiers for CDS/NDR, signal levels
.read pixels X1 to X2
.advance YRD
end loop
Then, after a time tEXP, all signal levels are read, again with YRD
YRD - read side
Initialize YRST with Y1
for YRST = 1 to 1023 loop
.select line YRST
.reset line YRST
.advance YRST one position
end loop
CYIH1SM1000AA-HHCS
YRST - reset side
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