Samsung S3C6400X, User Manual, Page: 557 / 1189

PRELIMINARY
S3C6400X RISC MICROPROCESSOR GRAPHICS 2D
18-25
Preliminary product information describe products that are in development,
for which full characterization data and associated errata are not yet available.
Specifications and information herein are subject to change without notice.
COMMON RESOURCE RASTER OPERATION REGISTER (ROP_REG)
Register Offset R/W Description Reset Value
ROP_REG 0x76100410 R/W Raster Operation register. 0x0000_0000
ROP_REG Bit Description Initial State
Reserved [31:14] 0x0
OS [13] Third Operand Select :
1’b0 : Pattern
1’b1 : Foreground Color
0x0
ABM [12:10] Alpha Blending Mode :
3’b000 : No Alpha Blending
3’b001 : Perpixel Alpha Blending with Source Bitmap
3’b010 : Alpha Blending with Register
3’b011 : Perpixel Alpha Blending with Third Bitmap
3’b100 : Fading
Others : Reserved
0x0
T [9] 0 : Opaque Mode
1 : Transparent Mode
0x0
Reserved [8] 0x0
ROP Value [7:0] Raster Operation Value 0x0
COMMON RESOURCE ALPHA REGISTER (ALPHA_REG)
Register Offset R/W Description Reset Value
ALPHA_REG 0x76100420 R/W Alpha value, Fading offset. 0x0000_0000
ALPHA_REG Bit Description Initial State
Reserved [31:16] 0x0
Fading [15:8] Fading Offset Value 0x0
Alpha [7:0] Alpha Value 0x0