SPRUJ52C june 2022 – july 2023 AM69 , AM69A , TDA4AH-Q1 , TDA4AP-Q1 , TDA4VH-Q1 , TDA4VP-Q1
The subsampler partitions the frame into windows using the size, count, and starting location parameters shown on the left in Figure 6-36. Each window is further sampled down to a set of 2 × 2 blocks. The horizontal and vertical distances between the start of blocks within a window is programmable using the parameters shown on the right in Figure 6-36.
Table 6-53 lists the bit fields that configure the window and block sizes, counts, and starting positions.
Bit Field | Bit Width | Description |
---|---|---|
VISS_RAWFE_H3A_AEWWIN1[20:13] WINW | 7 | Window width (in pixels) |
VISS_RAWFE_H3A_AEWWIN1[31:24] WINH | 7 | Window height (in lines) |
VISS_RAWFE_H3A_AEWWIN1[5:0] WINHC | 6 | Window count for horizontal direction |
VISS_RAWFE_H3A_AEWWIN1[12:6] WINVC | 7 | Window count for vertical direction |
VISS_RAWFE_H3A_AEWINSTART[11:0] WINSH | 12 | Window start position H |
VISS_RAWFE_H3A_AEWINSTART[27:16] WINSV | 12 | Window start position V |
VISS_RAWFE_H3A_AEWSUBWIN[3:0] AEWINCH | 4 | Horizontal distance between subsamples |
VISS_RAWFE_H3A_AEWSUBWIN[11:8] AEWINCV | 4 | Vertical distance between subsamples |