參數(shù)資料
型號(hào)： HD66712UA02TA0
廠商： Hitachi,Ltd.
英文描述： Dot-Matrix Liquid Crystal Display Controller/Driver
中文描述： 點(diǎn)陣液晶顯示控制器/驅(qū)動(dòng)器
文件頁(yè)數(shù)： 72/88頁(yè)
文件大?。?/td> 662K
代理商： HD66712UA02TA0
HD66712U
435
Low Power Mode
When the extension driver is not used (EXT = Low) with extension register enabled (RE = 1), the
HD66712 enters low power mode by setting the low-power mode bit (LP) to 1. During low-power mode,
as the internal operation clock is divided by 2 (2-line/4-line display mode) or by 4 (1-line display mode),
the execution time of each instruction becomes two times or four times longer than normal. In addition,
as the frame frequency decreases to 5/6, display quality might be affected.
In addition, since the display is not shifted in low power mode, display shift must be cleared with the
return home instruction before setting low power mode. The amount of horizontal scroll must also be
cleared (HDS = 000000). Moreover, because the display enters a shift state after clearing low-power
mode, the home return instruction must be used to clear display shift at that time.
RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0
0
0
0
0
0
0
0
0
RS R/W
0
R/W
0
DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0
0
1
DL
0
N
BE
0
RS
0
DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
1
0
0
0
0
0
0
0
RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0
0
0
0
1
DL
N
BE
RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0
0
0
0
1
DL
N
BE
Note: The execution time of an instruction in low-power
mode becomes two times or four times longer
then normal. The frame frequency also
decreases by 5/6.
Return home
Extended register enable
Return home
Clear horizontal scroll quantity
HDS = 000000
Set a low power mode
Clear low power mode
Low power operation
1
1
1
1
1
0
RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0
0
0
0
0
0
0
0
0
Return home
1
Note: Up until this instruction, execution time is two
times or four times longer than normal.
Note: Because the display enters a shift state, be sure
to execute this instruction.
RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0
0
0
0
0
0
0
1
0
0
Figure 33 Usage of Low Power Mode
相關(guān)PDF資料
PDF描述
HD66712SA00FS Dot-Matrix Liquid Crystal Display Controller/Driver
HD66712SA01FS Dot-Matrix Liquid Crystal Display Controller/Driver
HD66712SA02FS Dot-Matrix Liquid Crystal Display Controller/Driver
HD66712UA03TA0 Dot-Matrix Liquid Crystal Display Controller/Driver
HD66717 (Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HD66712UA03TA0 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Dot-Matrix Liquid Crystal Display Controller/Driver
HD66717 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver with Key Scan Function
HD66717A03TA0 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:(Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver)
HD66720 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver with Key Scan Function
HD66720A01TF 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver
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