Samsung S5PC110 Manual page 1784

S5PC110_UM
13.5.3 COMMAND REGISTERS
13.5.3.1 BitBLT Start Register (BITBLT_START_REG, W, Address = 0xFA00_0100)
BITBLT_START_REG
Reserved
Start_BitBLT
13.5.3.2 BitBLT Command Register (BITBLT_COMMAND_REG, R/W, Address = 0xFA00_0104)
BITBLT_COMMAND_REG
Reserved
SrcNonPreBlendMode
AlphaBlendMode
Reserved
ColorKeyMode
Reserved
Transparent Mode
Reserved
CWEn
Reserved
StretchEn
Reserved
MaskEn
Bit
[31:2] Reserved
[0] Start BitBLT Operation. When this bit is set, it is
automatically clear after one clock cycle.
Bit
[31:24] Reserved
[23:22] Source Non-premultiplied
2'b00: Disable
2'b01: Alpha Blend with Constant Alpha
2'b10: Alpha Blend with PerPixel Alpha
2'b11: Reserved
[21:20] Alpha Blending Mode
2'b00: No Alpha Blending
2'b01: Alpha Blending
2'b10: Fading
2'b11: Reserved
[19:18] Reserved
[17:16] 2'b00: Disable colorkey
2'b01: Enable source colorkey
2'b10: Enable destination colorkey
2'b11: Enable source colorkey and destination
colorkey
[15:14] Reserved
[13:12] 2'b00: Opaque Mode
2'b01: Transparent Mode
2'b10: BlueScreen Mode
2'b11: Reserved
[11:9] Reserved
[8] Enable Clipping Window
[7:5] Reserved
[4] Enable Stretch Mode
[3:1] Reserved
[0] Enable Mask Operand (ROP4 Operation)
Description
Description
13 12BG2D
Initial State
0x0
0x0
Initial State
0x0
0x0
0x0
0x0
0x0
0x0
0x0
0x0
0x0
0x0
0x0
0x0
0x0
13-15