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): 103/134頁
文件大?。?/td> 1000K
代理商: S1D13700
Epson Research and Development
Vancouver Design Center
Page 103
Hardware Functional Specification
Issue Date: 2004/01/06
S1D13700
X42A-A-001-00
Revision 1.0
15 Application Notes
15.1 Register Initialization/Initialization Parameters
Square brackets around a parameter name indicate the number represented by the
parameter, rather than the value written to the parameter register. For example, [FX] = FX
+ 1.
15.1.1 SYSTEM SET Command and Parameters
FX
The horizontal character field size is determined from the horizontal display size in
pixels [VD] and the number of characters per line [VC].
[VD] / [VC] = [FX]
C/R
C/R can be determined from VC and FX.
[C/R] = RND ([FX] / 8) [VC]
Where RND(x) denotes rounded up to the next highest integer. [C/R] is the number of
bytes per line, not the number of characters.
TC/R
TC/R must satisfy the condition [TC/R]
[C/R] + 2.
f
SYSCLK
and f
FR
Once TC/R has been set, the frame frequency, f
FR
, and lines per frame [L/F] will also
have been set. The oscillator frequency f
SYSCLK
is given by:
f
SYSCLK
= ([ClockDiv] x [bpp] x [TC/R'] x [FX] x [L/F] x Ffr)
÷
4
where:
ClockDiv
bpp
Ffr
4, 8, or 16
1, 2, or 4
Frame Rate
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