27 GRAPHICS ENGINE (GE)
27-36
Seiko Epson Corporation
S1C33L26 TECHNICAL MANUAL
D19
Sync Enable Bit
Enables or disables the LCDC synchronization function. (See Section 27.3.5.)
1: Enabled (Synchronized)
0: Disabled (Not synchronized)
D[18:16] Write Effect Setting[2:0] Bits
Selects a writing effect. (See Section 27.3.5.)
5.9.2 Writing Effect Selections
Table 27.
Write Effect Setting[2:0] bits
Writing effect
0x7–0x4
Reserved
0x3
Rewrite
0x2
Mesh
0x1
XOR
0x0
Normal (Fill)
D[15:0] Color[15:0] Bits
Specifies the drawing color.
The effective bits depend on the GE bpp mode (set using DISP_BPP[2:0]/GE_DISP_CFG register).
16 bpp mode: Color[15:0] (D[15:0]) bits are effective
8 bpp mode: Color[7:0] (D[7:0]) bits are effective
4 bpp mode: Color[3:0] (D[3:0]) bits are effective
2 bpp mode: Color[1:0] (D[1:0]) bits are effective
1 bpp mode: Color0 (D0) bit is effective
The color data may be modified before being written to the work area according to the palette and/or
writing effect settings. (See Section 27.3.5.)
Argument 2 (Coordinates of upper left corner)
D[31:16] Y1 Coordinate[15:0] Bits
Specifies the Y coordinate of the upper left corner.
D[15:0] X1 Coordinate[15:0] Bits
Specifies the X coordinate of the upper left corner.
Argument 3 (Coordinates of lower right corner)
D[31:16] Y2 Coordinate[15:0] Bits
Specifies the Y coordinate of the lower right corner.
D[15:0] X2 Coordinate[15:0] Bits
Specifies the X coordinate of the lower right corner.
Work area
(Clipping area)
X1
Y1
(0, 0)
(X2, Y2)
Y2
X2
(X1, Y1)
5.9.1 Drawing Solid Filled Rectangle
Figure 27.