Whenever a color is placed on the video display, provided that RTC is a logic 0, the system sends the 8-bit code that represents a color to the D0-D7 connections.

• 无论何时，当一种颜色被置于视频显示时，假如RTC为逻辑0，系统将代表一种颜色的8位码送入D0-D7。