The transfer of the 8BIT image data,speed slow if use 16BIT transmission , and how do 8 bit GPIF Configuration.
When you say 8 bit data are you talking about the data type or the interface i.e. is the width of each pixel 8 bit or the interface uses 8 bits of the 16 bit interface?
The GPIF II designer has the option of configuring the interface for 8-bit mode (I'll post an update here once the version with support for this is released). Other than that the rest should be just the same as configuring for 16-bit mode.