參數(shù)資料
型號: S1D13700
廠商: 愛普生(中國)有限公司
英文描述: Embedded Memory Graphics LCD Controller
中文描述: 嵌入式內(nèi)存圖形液晶顯示控制器
文件頁數(shù): 65/134頁
文件大?。?/td> 1000K
代理商: S1D13700
Epson Research and Development
Vancouver Design Center
Page 65
Hardware Functional Specification
Issue Date: 2004/01/06
S1D13700
X42A-A-001-00
Revision 1.0
OVLAY
The OVLAY command selects layered screen composition and screen text/graphics mode
when indirect addressing is used. The values from REG[18h] are passed as parameters
when the OVLAY command is issued. For further information on the OVLAY command,
see Section 11.1.7, “OVLAY” on page 77.
bit 4
3 Layer Overlay Select (OV)
This bit determines how many layers are used when graphics mode is enabled. For mixed
text and graphics, this bit must be set to 0.
When this bit = 0, two layers are used.
When this bit = 1, three layers are used.
bit 3
Screen Block 3 Display Mode (DM1)
This bit determines the display mode for screen block 3.
When this bit = 0, screen block 3 is configured for text mode.
When this bit = 1, screen block 3 is configured for graphics mode.
Note
Screen blocks 2 and 4 can display graphics only.
bit 2
Screen Block 1 Display Mode (DM0)
This bit determines the display mode for screen block 1.
When this bit = 0, screen block 1 is configured for text mode.
When this bit = 1, screen block 1 is configured for graphics mode.
Note
Screen blocks 2 and 4 can display graphics only.
REG[18h] Overlay Register
Address = 8018h
Read/Write
n/a
3 Layer Overlay
Select
Screen Block 3
Display Mode
Screen Block 1
Display Mode
Layer Composition Method bits 1-0
7
6
5
4
3
2
1
0
相關(guān)PDF資料
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S1D13706 S1D13706 Embedded Memory LCD Controller
S1D15E06 Direct RAM data display by display data RAM
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