參數(shù)資料
型號: HD66841
廠商: Hitachi,Ltd.
英文描述: LVIC-II (LCD Video Interface Controller)(LCD視頻控制器)
中文描述: LVIC - 2(液晶視頻接口控制器)(液晶顯示視頻控制器)
文件頁數(shù): 25/62頁
文件大?。?/td> 185K
代理商: HD66841
HD66841
25
Display Timing Signal Generation
CRT display data is classified into display period data and retrace period data. Only display period data is
necessary for LCD. Therefore, the HD66841 needs a signal announcing whether the CRT display data
transferred is for the display period or not. This signal is the display timing signal.
The HD66841 can generate the display timing signal from HSYNC and VSYNC. Figure 10 illustrates the
relation between HSYNC, VSYNC, the display timing signal (DISPTMG), and display data. Y lines and X
dots in the figure are specified by the vertical backporch register (R12, R13) and the horizontal back-porch
register (R14, R15) respectively.
VSYNC
HSYNC
DISPTMG
Display data
Y lines (= Vertical backporch)
X dots (= Horizontal backporch)
Display period
(= No. of
horizontal
displayed
characters)
Retrace
period
Valid
Invalid
Valid
Invalid
Valid
Figure 10 Relation between HSYNC, VSYNC, DISPTMG, and Display Data
相關(guān)PDF資料
PDF描述
HD68000Y-10 MPU(MICRO PROCESSING UNIT)
HD68HC000Y-10 MPU(MICRO PROCESSING UNIT)
HD68000Y-12 MPU(MICRO PROCESSING UNIT)
HD68HC000Y-12 MPU(MICRO PROCESSING UNIT)
HD68000Y-8 MPU(MICRO PROCESSING UNIT)
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