參數(shù)資料
型號(hào)： HD66520T
廠商： Hitachi,Ltd.
英文描述： 160-Channel 4-Level Grayscale Display Column Driver with Internal Bit-Map RAM(點(diǎn)陣圖形LCD160通道驅(qū)動(dòng)器)
中文描述： 160通道4級(jí)灰度顯示列的內(nèi)部位圖的RAM（點(diǎn)陣圖形LCD160通道驅(qū)動(dòng)器驅(qū)動(dòng)程序）
文件頁(yè)數(shù)： 30/45頁(yè)
文件大?。?/td> 336K
代理商： HD66520T
HD66520T
1043
Arbitration Control
The HD66520 controls the arbitration between draw access and display access. The draw access reads
and writes display data of the display memory incorporated in the HD66520. The display access outputs
display memory line data to the liquid crystal panel. In this case, draw access is performed before display
access, so continuous access is enabled without having the system to wait. For arbitration control, draw
access is recognized as valid when signal
&6
is low.
The following describes the typical examples of display memory access state during arbitration control.
Sequence Line Data Transfer Display Access Performed by Subsequent Line Data Transfer
If no draw access is attempted, normal display access is performed when signal CL1 is low (Figure 28).
Draw Access 1
If draw access is attempted when signal CL1 is high, draw access is performed regardless of the display
access (Figure 29).
CS
nth + 1 line data
display access
nth line data
display access
CL1
Display memory
access state
Figure 28 Sequence Line Data Transfer
Draw access
nth + 1 line data
display access
nth line data
display access
Draw access
CS
CL1
Display memory
access state
Figure 29 Draw Access (1)
相關(guān)PDF資料
PDF描述
HD66522 160-Channel Column Driver with Internal Bit-Map RAM for Reflective Color Display and Grayscale Display(點(diǎn)陣圖形LCD160通道驅(qū)動(dòng)器)
HD66523R 240-Channel Common Driver with Internal LCD Timing Circuit(帶內(nèi)部LCD定時(shí)電路的240通道驅(qū)動(dòng)器)
HD66701 Dot Matrix Liquid Crystal Display Controller/Driver(點(diǎn)陣液晶顯示控制器/驅(qū)動(dòng)器)
HD66702 Dot Matrix Liquid Crystal Display Controller/Driver(點(diǎn)陣液晶顯示控制器/驅(qū)動(dòng)器)
HD66702R Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver with Key Scan Function
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HD66520TA0 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver
HD66520TB0 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:160-Channel 4-Level Grayscale Display Column Driver with Internal Bit-Map RAM
HD66522 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver
HD66523 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver
HD66523R 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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