SH7265 Datasheet, PDF (1472/2024 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7260 Series

Section 28 2D Graphics Engine (2DG)
Bit
Bit name
9, 8
EDGE
7 to 1 
0
BRSIZ
Initial
Value
R/W
11
R/W
Undefined R
0
R/W
Description
Blitter Edge Processing
These bits set processings of the right edge in the
horizontal direction and lower edge in the vertical
direction for the blitter.
When resizing is not performed, these bits should be
set to 11. When resizing is performed, these bits can
be set as follows.
00: The vertical edge is not the lower edge.
The horizontal edge is not the right edge.
01: The vertical edge is not the lower edge.
The horizontal edge is the right edge.
10: The vertical edge is the lower edge.
The horizontal edge is not the right edge.
11: The vertical edge is the lower edge.
The horizontal edge is the right edge.
Reserved
The read value is undefined. The write value should
always be 0.
Blitter Resizing Function
This bit sets whether or not to use the resizing
function for the blitter.
0: Does not use the resizing function.
1: Uses the resizing function.
• When the resizing function is used for the blitter, the EDGE bits should be set as follows:
The EDGE bits should be set to 11 if full resizing which resizes the entire source area is
performed.
The EDGE bits should be set according to the bit description above if partial resizing which
resizes a part of the source area is performed.
• The interference stripes can be reduced by setting the PREON bit to 1 and performing pre-
filtering.
Rev. 1.00 Mar. 14, 2008 Page 1436 of 1984
REJ09B0351-0100