
27 GRAPHICS ENGINE (GE)
S1C33L26 TECHNICAL MANUAL
Seiko Epson Corporation
27-61
Notes: • When configuring a clipping area, the X and Y coordinates of the upper left corner must be
set first. Otherwise, proper operations cannot be guaranteed.
• Do not configure a clipping area that exceeds the work area, as proper drawing results can-
not be guaranteed.
• When the GE_CONFIG command is used to set the GE_CLIP_ST register, the setting value
is not written to the register until the GE_CONFIG command for setting the GE_CLIP_END
register is executed.
D[15:12] Reserved
D[11:0] CLIP_UPL_X[11:0]: Clipping Area Upper Left Corner X Coordinate Bits
Specifies the X coordinate value of the clipping area upper left corner. (Default: 0x0)
Clipping Area End Position Register (GE_CLIP_END)
Register name Address
Bit
Name
Function
Setting
Init. R/W
Remarks
Clipping Area
End Position
Register
(GE_CLIP_
END)
0x302464
(32 bits)
D31–28 –
reserved
–
–
–
0 when being read.
D27–16 CLIP_LWR_
Y[11:0]
Clipping area lower right corner
Y coordinate
0 to 4,095
0x0 R/W
D15–12 –
reserved
–
–
–
0 when being read.
D11–0 CLIP_LWR_
X[11:0]
Clipping area lower right corner
X coordinate
0 to 4,095
0x0 R/W
D[31:28] Reserved
D[27:16] CLIP_LWR_Y[11:0]: Clipping Area Lower Right Corner Y Coordinate Bits
Specifies the Y coordinate value of the clipping area lower right corner. (Default: 0x0)
D[15:12] Reserved
D[11:0] CLIP_LWR_X[11:0]: Clipping Area Lower Right Corner X Coordinate Bits
Specifies the X coordinate value of the clipping area lower right corner. (Default: 0x0)
Mesh Configuration Register (GE_MESH)
Register name Address
Bit
Name
Function
Setting
Init. R/W
Remarks
Mesh
Configuration
Register
(GE_MESH)
0x302468
(32 bits)
D31–20 –
reserved
–
–
–
0 when being read.
D19–18 MESH_RW
[1:0]
Mesh row width
MESH_RW[1:0]
Width
0x0 R/W
0x3
0x2
0x1
0x0
4 pixels
reserved
2 pixels
1 pixel
D17–16 MESH_CW
[1:0]
Mesh column width
MESH_CW[1:0]
Width
0x0 R/W
0x3
0x2
0x1
0x0
4 pixels
reserved
2 pixels
1 pixel
D15–0 MESH_COL
[15:0]
Mesh color
0x0 to 0xffff
0x0 R/W
D[31:20] Reserved
D[19:18] MESH_RW[1:0]: Mesh Row Width Bits
Selects the row width of the mesh.
Enabling the mesh effect in a drawing command overlays the mesh pattern configured in this register on
the object when written to the work area. The mesh pattern is generated relative to the work area origin (0,
0). Therefore, a continuous mesh pattern will be generated even if two or more objects with mesh speci-
fied overlap one another.
6.8 Mesh Pattern Settings
Table 27.
MESH_RW[1:0]/MESH_CW[1:0]
Mesh size
0x3
4 pixels
0x2
Reserved
0x1
2 pixels
0x0
1 pixel
(Default: 0x0)