參數(shù)資料
型號(hào): HCD66727A04BP
廠商: Hitachi,Ltd.
英文描述: Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver with Key Scan Function
中文描述: 低功耗點(diǎn)陣液晶顯示控制器/鍵掃描功能驅(qū)動(dòng)程序
文件頁(yè)數(shù): 36/97頁(yè)
文件大小: 513K
代理商: HCD66727A04BP
HD66727
36
Scroll Control
The scroll control instruction (Figure 17) includes the SN and SL bits.
SN1, SN0:
Combined with the SN2 bit described in the Contrast Control section to select the top line to be
displayed (display-start line) through the data output from the COM1 pin (Table 17). After first five lines
are displayed from the top line, the cycle is repeated and scrolling continues.
SL2–SL0:
Selects the top raster-row to be displayed (display-start raster-row) in the display-start line
specified by SN2 to SN0. Any raster-row from the first to eighth can be selected (Table 18). This function
is used to perform vertical smooth scroll together with SN2 to SN0. For details, refer to the Vertical
Smooth Scroll section.
0
0
0
1
1
SN1 SN0 SL2 SL1 SL0
RS R/W DB7
DB0
Figure 17 Scroll Control Instruction
Table 17
SN Bits and Display-Start Lines
SN2
SN1
SN0
Display-Start Line
0
0
0
1st line
0
0
1
2nd line
0
1
0
3rd line
0
1
1
4th line
1
0/1
0/1
5th line
Table 18
SN Bits and Display-Start Raster-Rows
SL2
SL1
SL0
Display-Start Raster-Row
0
0
0
1st raster-row
0
0
1
2nd raster-row
0
1
0
3rd raster-row
0
1
1
4th raster-row
1
0
0
5th raster-row
1
0
1
6th raster-row
1
1
0
7th raster-row
1
1
1
8th raster-row
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