SH7265 Datasheet, PDF (1548/2024 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7260 Series

Section 28 2D Graphics Engine (2DG)
ST': The number of lines from the starting line for the vertical source read-out area for full
resizing to the top-edge pixel in the vertical source read-out area in the updated area
SB': The number of lines from the starting line for the vertical source read-out area for full
resizing to the lower-edge pixel in the vertical source read-out area in the updated area
SL': The number of pixels from the left-edge pixel for the horizontal source read-out area for
full resizing to the left-edge (starting) pixel in the horizontal source read-out area in the
updated area
SR': The number of pixels from the left-edge pixel for the horizontal source read-out area for
full resizing to the right-edge (end) pixel in the horizontal source read-out area in the
updated area
ST: The number of lines from the starting line for the vertical source read-out area for full
resizing to the top-edge pixel in the vertical source read-out area in the partial resize set
area
SL: The number of pixels from the left-edge pixel for the horizontal source read-out area for
full resizing to the left-edge (starting) pixel in the horizontal source read-out area in the
partial resize set area
DT: The number of lines from the starting line for the vertical destination area for full
resizing to the top-edge pixel in the vertical destination area in the partial resize set area
DL: The number of pixels from the left-edge pixel for the horizontal destination area for full
resizing to the left-edge (starting) pixel in the horizontal destination area in the partial
resize set area
• Definitions: Explanation of codes not provided in figures 28.40 or 28.41
GR_HSPHAS register, H1PHS_DCML bit:
For full resizing, the fractional part of the results of calculation of the phase in the
horizontal starting position on the source side
GR_VSPHAS register, V1PHS_DCML bit:
For full resizing, the fractional part of the results of calculation of the phase in the
vertical starting position on the source side
1. Formula for calculating the number of left-edge pixels (DL) and the number of top-edge lines
(DT) in the destination set area
Formula for judging DL:
When SL' > 1, INT (DH/ SH × (SL' − 1)) × INT (SH/ DH × 4096) + H1PHS_DCML ≥ (SL'
− 1) × 4096
When SL' ≤ 1, DL = 0 for exception handling, regardless of formula for calculation
Rev. 1.00 Mar. 14, 2008 Page 1512 of 1984
REJ09B0351-0100