參數(shù)資料
型號(hào)： HD66410
廠商： Hitachi,Ltd.
英文描述： RAM-Provided 128-Channel Driver for Dot-Matrix Graphic LCD(點(diǎn)陣圖形LCD128通道驅(qū)動(dòng)器)
中文描述： 內(nèi)存提供128通道驅(qū)動(dòng)點(diǎn)陣圖形LCD（點(diǎn)陣圖形LCD128通道驅(qū)動(dòng)器）
文件頁數(shù)： 17/50頁
文件大小： 177K
代理商： HD66410
HD66410
17
Display RAM Configuration and Display
The HD66410 incorporates a bit-mapped display RAM. It has 128 bits in the X direction and 33 bits in the
Y direction. The 128 bits are divided into sixteen 8-bit groups. As shown in Figure 8, data written by the
MPU is stored horizontally with the MSB at the far left and the LSB at the far right. A display data of 1
turns on (black) the corresponding dot of an LCD panel and 0 turns it off (transparent).
The ADC bit of control register 1 can control the positional relationship between X addresses of the RAM
and LCD driver output (Figure 9). Specifically, the data in address H’0 is output from X1 (X17) when the
ADC bit in control register 1 is 0, and from X128 (X144) otherwise. Here, data in each 8-bit group is also
inverted. Because of this function, the data in X address H’0 can be always displayed on the top left of an
LCD panel with the MSB at the far left regardless of the LSI is positioned with respect to the panel.
LCD panel
X161
X160
Y0
Y1
1 0 1 0 1 0 1 0
0 1 0 1 0 1 0 1
DB7
(MSB)
DB0
(LSB)
Display RAM
X128
X1
X2
X3
X4
X5
X6
X7
X8
Figure 8 Display RAM Data and Display
X1
X128
H'00
H'01
H'1F
H'20
LCD drive signal output
Y
X addresses
(a) ADC = 0
H'0
H'1
H'F
MSB
X1
X128
H'00
H'01
H'1F
H'20
LCD drive signal output
Y
X addresses
(b) ADC = 1
H'F
H'E
H'0
MSB
Figure 9 Display RAM Configuration
相關(guān)PDF資料
PDF描述
HD66420 (RAM-Provided 160 Channel 4-Level Grey Scale Driver for Dot Matrix Graphics LCD)
HD66420TA0 LCD Display Driver
HD66421 (RAM-Provided 160 Channel 4-Level Grey Scale Driver for Dot Matrix Graphics LCD)
HD66421TB0 (RAM-Provided 160 Channel 4-Level Grey Scale Driver for Dot Matrix Graphics LCD)
HD66503 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)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HD66420 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:(RAM-Provided 160 Channel 4-Level Grey Scale Driver for Dot Matrix Graphics LCD)
HD66420TA0 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:LCD Display Driver
HD66421 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:(RAM-Provided 160 Channel 4-Level Grey Scale Driver for Dot Matrix Graphics LCD)
HD66421TB0 制造商:Renesas Electronics Corporation 功能描述:
HD66503 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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