參數(shù)資料
型號(hào): HD667A66R
廠商: Hitachi,Ltd.
英文描述: 132 x 176-dot Graphics LCD Controller/Driver for 65K Colors
中文描述: 132 × 176點(diǎn)圖形LCD控制器/驅(qū)動(dòng)器的65K色
文件頁(yè)數(shù): 52/97頁(yè)
文件大小: 681K
代理商: HD667A66R
HD66766R Rev. 1.0-1 / September 2002
52
Write-data Mask Function
The HD66766R has a bit-wise write-data mask function that controls writing the 16-bit data from the
microcomputer to the GRAM. Bits that are “0” in the write-data mask register (WM15–0) cause the
corresponding DB bit to be written to the GRAM. Bits that are “1” prevent writing to the corresponding
GRAM bit to the GRAM; the data in the GRAM is retained. This function can be used when only one-
pixel data is rewritten or the particular display color is selectively rewritten.
Figure 38Write-data Mask Function Operation
Data written by the
microcomputer
DB15
Write data
mask
WM15
WMO
DB11
DB0
GRAM data
DB0
R02
R01
R00
R03
G00
B02
B01
B00
B03
R04
G02
G01
G03
G04
G05
B04
1
1
1
1
1
0
0
0
0
0
1
1
1
1
0
0
*
*
*
*
*
G05 G04
G03
G02
G01
*
*
*
B02
B01
B00
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HD667B66R 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:132 x 176-dot Graphics LCD Controller/Driver for 65K Colors
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