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The LCD module

2014-02-26 15:42:37 Click:

LCM (LCDModule) LCD display module, refers to the glass and LCD driver integrated into the LCD display products together, it provides the user with a standard LCD display driver interface (have four, eight, VGA and so on the different types), the user to operate according to requirements of the interface to control the LCD display correctly.LCM compared with glass is a higher level of integration of LCD products, for small size LCD display, LCM can be more convenient with the various microcontroller (such as single chip microcomputer) connection;But for big size or color LCD display, typically take up control system much resources or can not control, for example 320 x 240 240 color color of LCM, with 20 games/SEC (i.e., 1 second full screen refresh 20 times), according to a second up to the amount of data transmission alone: 320 x 240 x 8 x 20 = 11.71875 Mb or 1.465 Mb, if the standard MCS51 series single chip, assuming that reuse MOVX instructions for these data, considering the address calculation time, need to take at least 421.875 MHz clock to complete data transmission, can deal with large amount of data.

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