SPRUIE9D May 2017 – May 2024 DRA74P , DRA75P , DRA76P , DRA77P
The saturation check module compares the data from the subsampler to the value programmed in the H3A_PCR[31:22] AVE2LMT bit field. This value is the maximum clipping value. If all 4 pixels in the 2 × 2 block are less than the AVE2LMT value, the value of the unsaturated block counter is incremented. There is one unsaturated block counter per window. The unsaturated block counters are later written to memory.