BL8531H
AFE FOR CCD/CIS SIGNAL PROCESSOR
POWER-ON INITIALIZATION
CALIBRATION
Decide clamp level for SHA mode
(Refer to next page)
Write to configuration register
Set CDS or SHA operation
Set 3 or 1 channel mode
Set color pointer
Set PGA gain
(Input offset = 0mV)
Set clamp mode
Scan dark line
Compute pixel offsets
Set input offset
Write to PGA gain register
Set to gain of one(00001)
Write to input offset register
Set to 0mV(10000000)
Set odd/even offset in back end
YES
Set another
Set another
color
YES
color
NO
NO
Set gain/offset bus size
in back end
Set external pixel offset
in back end
Scan white line
Compute pixel gains
in back end
YES
Adjust PGA gain
NO
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