User's Manual

S3C2450X RISC MICROPROCESSOR 2D
19-19
5.2 COMMAND REGISTERS
5.2.1 LINE Drawing Register (CMD0_REG)
Register Address R/W Description Reset Value
CMD0_REG 0x4D408100 W Line Drawing Register 0x0
Field Bit Description Initial State
Reserved [31:10]
− −
D [9] 0 = Draw Last Point
1 = Do-not-Draw Last Point.
−
M [8] 0 = Major axis is Y.
1 = Major axis is X.
−
Reserved [7:2]
− −
L [1] 0 = Nothing.
1 = Line Drawing.
−
P [0] 0 = Nothing.
1 = Point Drawing.
−
5.2.2 BitBLT Register (CMD1_REG)
Register Address R/W Description Reset Value
CMD1_REG 0x4D408104 W BitBLT Register 0x0
Field Bit Description Initial State
Reserved [31:2]
− −
S [1] 0 = Nothing
1 = Stretch BitBLT
−
N [0] 0 = Nothing
1 = Normal BitBLT
−
5.2.3 HOST Screen Start BitBLT Register (CMD2_REG)
Register Address R/W Description Reset Value
CMD2_REG 0x4D408108 W Host to Screen Start BitBLT Register 0x0
Field Bit Description Initial State
Data [31:0] BitBLT data (Start)
Note that the data written to this register represents only one pixel,
regardless of the source color mode. If the source color mode is
16-bpp (e.g., RGB565), the upper 16 bits of the data are ignored.
−