1、OVERVIEW

LCD driver interface has four kinds of interface, i.e. the conventional RGB-interface, I80 Interface and NTSC/PAL standard TV Encoder Interface and IT-R BT. 601 interface. The DISPLAY controller supports up to 5 overlay image windows. Overlay image windows support various color format, 16 level alpha blending, color key, x-y position control, soft scrolling, variable window size, and etc.The DISPLAY controller supports various color formats such as RGB (1BPP to 24 BPP), and YCbCr 4:4:4(only local bus).

LCD 驱动接口有四种接口，如传统的RGB 接口，I80 接口，NTSC/PAL 标准TV 编码器接口和IT-R BT.601 接口。显示控制器支持5 层图像窗口。覆盖图像窗口支持多种颜色格式、16 级alpha 混合、color key，横纵坐标位置控制，软动，可变窗口尺寸等等。显示控制器支持各种颜色格式，如RGB（1BPPto24BPP），YcbCr4：4：4.

The DISPLAY controller is used to transfer the video data and to generate the necessary control signals such as,
RGB_VSYNC, RGB_HSYNC, RGB_VCLK, RGB_VDEN, and SYS_CS0(as well as the control signals). DISPLAY
controller has the data ports for video data, which are RGB_VD[23:0], SYS_VD[17:0], and TV_OUT as shown in
Figure 14-1.

显示控制器用来转换视频数据，并产生需要的控制信号，如，RGB_VSYNC, RGB_HSYNC, RGB_VCLK,
RGB_VDEN 和SYS-CS0（作为控制信号）。显示控制器有视频数据端口，这些数据端口是RGB_VD[23:0]和
SYS_VD[17:0]，TV_OUT 如图14-1 所示。

2、FEATURES

Video Output Interface ：接口

RGB IF (Parallel)
RGB IF (Serial)
I80 Interface
TV Encoder Interface (NTSC, PAL standard)
ITU-R BT.601 interface (YUV422 8bit)