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■ User clipping

User clipping can be selected by software, and you can select whether to enable user clipping for each part or whether to clip user clipping outside the setting area or inside.
The user clipping coordinates can be selected as valid or invalid by the user clipping valid bit (Clip bit, command table start address + 04H bit 10). When disabled, user clipping coordinates are disabled and the part is clipped only with system clipping coordinates. When enabled, user clipping coordinates are enabled and the part is clipped with system clipping coordinates and user clipping coordinates.
When user clipping is enabled, the clipping mode bit (Cmod bit, command table start address + bit 9 of 40H) allows user clipping to select the inner drawing mode or the outer drawing mode. In the inner drawing mode, only the inside of the user clipping coordinate setting area is drawn for the part, and in the outer drawing mode, the outside is drawn.
∙ System clipping is processed regardless of user clipping.
⿟ Clipping coordinates are set as rectangles. The specification method is upper left coordinates (XA, YA) and lower right coordinates (XC, YC). Define the values ​​of these two points in the command table.
⿟ Clipping coordinates are not checked, so set XA ≦ XC and YA ≦ YC beforehand. Operation is not guaranteed if XC ∙ Set the user clipping coordinates inside the system clipping coordinate setting area (including online). If the user clipping coordinates are set outside the system clipping setting area, operation is not guaranteed.
The point on the clipping line is treated as the inside of the clipping area. It is drawn when in the inner drawing mode and not drawn when in the outer drawing mode.
∙ You can set two or more user clipping commands in the same frame. The clipping coordinate set command rewrites the internal clipping coordinate register. The parts after the rewriting are drawn with reference to the value.
∙ Since the value of the user clipping coordinate is undefined after the power is turned on or reset, it is necessary to set it before starting drawing.

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