參數(shù)資料
型號: HD66787
廠商: Renesas Technology Corp.
英文描述: 528-channel, One-chip Driver with 262,144-color Display RAM and Power Supply Circuit for Low-temperature Poli-Si TFT (LTPS-TFT) Panels with Incorporat
中文描述: 528與262,144色顯示RAM和低電源電路通道,單芯片驅(qū)動器的溫度和旋鈴聲非晶硅TFT(薄膜晶體管)與Incorporat小組
文件頁數(shù): 85/159頁
文件大小: 1607K
代理商: HD66787
HD66787
Preliminary
Rev.0.22, May.23.2003, page 85 of 159
VSYNC Interface
The HD66787 incorporates a VSYNC-I/F, which enables moving picture display with only a system
interface and the frame-synchronizing signal (VSYNC). This interface enables moving picture display with
minimum modification to a conventional system.
LCDC/
MPU
CS*
RS
WR*
DB17-10, 8-1
HD66787
16
VSYNC
VYSNC interface
The VSYNC-I/F becomes operable by setting DM1-0 = 10 and RM = 0. In the VSYNC I/F mode, the
internal display operations are synchronized with VSYNC. By writing data to RAM through a system
interface in a speed that is higher for more than a fixed speed than the internal display operation speed, it
enables moving picture display through a system interface, while preventing flickers while the screens are
being updated.
Display operations are executed by the internal clock generated by the internal oscillator and VSYNC input.
All display data are stored in RAM. This enables moving picture display only by transmitting data that are
written over, thereby minimizing the number of data transmission while displaying moving picture. The
high-speed write mode (HWM = 1) enables RAM access in high speed with low power consumption.
VSYNC
RAM write via
system interface
Display operation in
synchronization with
the internal clock
Updating screen
Updating screen
Note: Data must be written in the high-speed write mode (HWM = 1) in VSYNC-I/F mode.
Moving picture data transmission through VSYNC interface
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HD66789 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:528-channel, One-chip Driver for Amorphous TFT Panels with 262,144-color display RAM, Power Supply Circuit, and Gate Circuit
HD667A66R 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
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
HD66840 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Peripheral IC
HD66840F25 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Controller