參數(shù)資料
型號(hào)： S1C621C0D
元件分類： 微控制器/微處理器
英文描述： 4-BIT, MROM, 1.3 MHz, MICROCONTROLLER, UUC74
封裝： DIE-74
文件頁(yè)數(shù)： 45/108頁(yè)
文件大?。?/td> 992K
代理商： S1C621C0D
S1C621C0 TECHNICAL MANUAL
EPSON
33
CHAPTER 4: PERIPHERAL CIRCUITS AND OPERATION (LCD Driver)
4.7.4 Switching between dynamic and static drive
The S1C621C0 provides software setting of the LCD static drive.
The frame frequency during static driving is fixed at 32 Hz (when fOSC1 = 32.768 kHz) regardless of the
drive duty selection.
This function enables easy adjustment (cadence adjustment) of the oscillation frequency of the OSC1
oscillation circuit (crystal oscillation circuit).
The procedure for executing static drive of the LCD is as follows:
Write "1" to register STCD at address C0HD2.
Write the same value to all registers corresponding to COM0–COM3 of the display memory.
Note: When setting the static drive, all the COM outputs become effective regardless of the drive duty
selection. Hence, for static drive, set the same value to all display memory corresponding to
COM0–COM3 even when a drive duty other than 1/4 duty has been selected.
For cadence adjustment, set the display data corresponding to COM0–COM3, so that all the
LCDs light.
Figure 4.7.4.1 shows the drive waveform for static drive.
Frame frequency
LCD lighting status
COM0
COM1
COM2
COM3
COM0
–COM3
(LOFF = "0")
Lit
Not lit
(LOFF = "1")
VC3
VC2
VC1
VSS
VC3
VC2
VC1
VSS
SEG0
–SEG33
SEG0–33
Fig. 4.7.4.1 LCD static drive waveform
4.7.5 Display memory area
The display memory is allocated in the data memory area, addresses 50H–7FH in page 0 or page 4. Either
of the areas used can be selected using the software (LDMS register).
By setting LDMS to "1", page 0 is selected and addresses 050H–07FH become the display memory. Since a
RAM has been allocated in this area, it can be used as the display memory for reading/writing. For this
reason, control in a bit unit can simply be done using an arithmetic instruction. However, this area should
not be used for general purpose RAM. Unused addresses for the display memory within the area (48 words
× 4 bits) can be used as a general purpose RAM.
At initial reset, LDMS is set to "0" and page 4 (450H–47FH) becomes the display memory. When this area is
selected, all the internal RAM can be used as general purpose RAM. However, since the display memory is
write only, data modification by arithmetic instructions cannot be done.
Correspondence between segment outputs and bits within the display memory can be optionally set by the
mask option explained in the next section.
相關(guān)PDF資料
PDF描述
S1C62480D 4-BIT, MROM, 2.3 MHz, MICROCONTROLLER, UUC135
S1C62440F 4-BIT, MROM, 2.3 MHz, MICROCONTROLLER, PQFP128
S1C62740D 4-BIT, MROM, 1.3 MHz, MICROCONTROLLER, UUC109
S1C62920D 4-BIT, MROM, 1.3 MHz, MICROCONTROLLER, UUC63
S1C62A33D 4-BIT, MROM, 0.6 MHz, MICROCONTROLLER, UUC86
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
S1C63004 制造商:EPSON 制造商全稱:EPSON 功能描述:CMOS 4-bit Single Chip Microcontroller
S1C63008 制造商:EPSON 制造商全稱:EPSON 功能描述:CMOS 4-bit Single Chip Microcontroller
S1C63016 制造商:EPSON 制造商全稱:EPSON 功能描述:CMOS 4-bit Single Chip Microcontroller
S1C63158 制造商:EPSON 制造商全稱:EPSON 功能描述:4-bit Single Chip Microcomputer
S1C63408 制造商:EPSON 制造商全稱:EPSON 功能描述:4-bit Single Chip Microcomputer
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*