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參數(shù)資料
| 型號： | HD66522 |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | 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) |
| 中文描述： | 160通道，內(nèi)置欄位為反射式彩色顯示和灰度顯示屏（點(diǎn)陣圖形LCD160通道驅(qū)動(dòng)器地圖RAM驅(qū)動(dòng)器） |
| 文件頁數(shù)： | 35/47頁 |
| 文件大小： | 276K |
| 代理商： | HD66522 |
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HD66522
35
Arbitration Control
HD66522 controls the arbitration between draw access and display access. The draw access reads and
writes display data of the display memory incorporated in the HD66522. The display access outputs display
memory line data to the liquid crystal panel. If these accesses occur at the same time, HD66522 outputs
WAIT
signal and halt draw access. The bus cycle must be extended until display access finishes with using
this
WAIT
signal.
Display Access without Draw Access:
If no draw access is attempted, normal display access is performed
after the falling edge of CL1. (Figure 29)
Collision between Display Access and Draw Access (1):
When the draw access occurs during the display
access,
WAIT
goes low at the falling edge of
WE
or
OE
and goes high at the end of the draw access. The
draw access must be extended with using this
WAIT
signal.
Collision between Display Access and Draw Access (2):
When the display access occurs during the draw
access, the display access halts until the draw access finishes.
WAIT
goes low at the end of the draw
access, transition point of address or the rising edge of
WE
of
OE
, and goes high at the end of draw access.
The draw access must be extended with using this
WAIT
signal.
Z
Bus
status
Display
Display
CS
WE
OE
WAIT
CL1
Figure 29 Display Access
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 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 |
| HD66727A04TA0L | 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 |
|---|---|
| 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 |
| HD66702 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver |
| HD66702R | 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 |
| HD66702RA00F | 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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