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參數(shù)資料
| 型號： | S1D13305F00B |
| 元件分類： | 顯示控制器 |
| 英文描述： | 640 X 256 PIXELS CRT CHAR OR GRPH DSPL CTLR, PQFP60 |
| 封裝： | QFP6-60 |
| 文件頁數(shù)： | 69/94頁 |
| 文件大?。?/td> | 541K |
| 代理商： | S1D13305F00B |
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S1D13305 Series
EPSON
65
Technical Manual
16. APPLICATION NOTES
16.1. Initialization Parameters
The parameters for the initialization commands must be
determined first. 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.
16.1.1. SYSTEM SET instruction 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] + 4.
fOSC and fFR
Once TC/R has been set, the frame frequency, fFR, and
lines per frame [L/F] will also have been set. The
lower limit on the oscillator frequency fOSC is given
by:
fOSC
≥ ([TC/R] × 9 + 1) × [L/F] × fFR
If no standard crystal close to the calculated value of
fOSC exists, a higher frequency crystal can be used and
the value of TC/R revised using the above equation.
Symptoms of an incorrect TC/R setting are listed
below. If any of these appears, check the value of TC/
R and modify it if necessary.
Vertical scanning halts and a high-contrast hori-
zontal line appears.
All pixels are on or off.
The LP output signal is absent or corrupted.
The display is unstable.
RESET/APPLICATION NOTES
The S1D13305 series requires a reset pulse at least 1 ms
long after power-on in order to re-initialize its internal
state.
For maximum reliability, it is not recommended to apply
a DC voltage to the LCD panel while the S1D13305 series
is reset. Turn off the LCD power supplies for at least one
frame period after the start of the reset pulse.
The S1D13305 series cannot receive commands while it
is reset. Commands to initialize the internal registers
should be issued soon after a reset.
During reset, the LCD drive signals XD, LP and FR are
halted.
A delay of 3 ms (maximum) is required following the
rising edges of both RES and VDD to allow for system
stabilization.
15. RESET
Figure 56. Reset timing
1ms reset pulse
0.7 VDD
0.3 VDD
VDD
RES
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| S1D13305F00B100 | 制造商:Epson Electronics America Inc 功能描述:LCD DRVR 3V/3.3V/5V 80-Pin TQFP |
| S1D13501F00A100 | 制造商:Epson Electronics America Inc 功能描述:LCD DRVR 3V/3.3V/5V 80-Pin TQFP |
| S1D13502F00B100 | 制造商:Epson Electronics America Inc 功能描述:LCD DRVR 3V/3.3V/5V 80-Pin TQFP |
| S1D13502F00B200 | 功能描述:LCD 驅(qū)動器 LCD CONTROLLER RoHS:否 制造商:Maxim Integrated 數(shù)位數(shù)量:4.5 片段數(shù)量:30 最大時鐘頻率:19 KHz 工作電源電壓:3 V to 3.6 V 最大工作溫度:+ 85 C 最小工作溫度:- 20 C 封裝 / 箱體:PDIP-40 封裝:Tube |
| S1D13503 | 制造商:EPSON 制造商全稱:EPSON 功能描述: |
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