SH7764 Datasheet, PDF (1213/1752 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC Engine Family SH-4A Series

Section 23 G2D
3. Command Parameters
TXS, TYS:
Base Address:
Source starting point. Write 0 to the unused bits.
Source start absolute address (Quad word address. Write 0 to bits A31
to A29 and A2 to A0.)
Source start relative address (Longword address. Negative number
expressed as two's complement. Bits A31 to A29 are used to extend
the sign in bit A28. Write 0 to bits A1 and A0.)
Note: Even in 32-bit addressing mode, write the values in bits 28 to 3 of the specified 32-bit
address to bits A28 to A3.
BXC, BYC:
LW, RW:
TH, BH:
ROP:
(c) Description
Center X and Y coordinate values. Rendering coordinates (absolute
coordinates). Negative numbers expressed as two's complement.
Left and right widths. Relative value from (BXC, BYC). Rendering
coordinates. Make the setting in pixel units. Write 0 to the unused
bits.
Top and bottom heights. Relative value from (BXC, BYC). Rendering
coordinates. Make the setting in pixel units. Write 0 to the unused
bits.
Raster operation code
Transfers multi-valued (8- or 16-bit/pixel) rectangle source data to rendering coordinates.
When SS = 0, set the (LW + RW + 1) value to be a multiple of 8 pixels. When SS = 1, set the (LW
+ RW + 1) value to be 8 or more pixels.
1. When work specification is selected as a rendering attribute (WORK = 1), only places where
the work coordinate pixel is 1 are drawn at rendering coordinates while referencing work
coordinates for the same coordinates as the rendering coordinates.
2. When SS = 1, the source data is referenced from the 2-dimensional source area. When SS = 0,
the source data is referenced from the Base Address in the display list. When REL = 0, the
source address can be specified as an absolute address. When REL = 1, the source address can
be specified as a relative address with respect to the memory address at which the BITBLTA
command code is located.
3. In 16-bit/pixel drawing, if the rendering attribute COOF bit is set to 1, the result of adding the
value in COFSR to the value of the multi-valued source data is drawn. The operation is
performed by saturation processing. In 8-bit/pixel drawing, the COOF bit should be cleared to
0.
Rev. 1.00 Nov. 22, 2007 Page 1157 of 1692
REJ09B0360-0100