Specifications

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2) LCD Control Flag
Preview should be stopped after LCD display of the last frame has been
completed. Two cases exist to stop Preview after checking if the Camera
Image display on LCD has been completed.
1) Check LCD Frame update interrupt and clear Register 0x00.
2) Use LCD control flag.
Set LCD control flag, and the update of frame being displayed on LCD
is completed and Preview is automatically ended.
4.13.3. RGB-Type LCD Interface
Figure 4-26 shows the generic interconnection between the CL765 and RGB-Type
LCD module. Some RGB-Type LCD module has two separated interface: one for
display data writing and the other for internal register setting. The internal
register setting is done through various serial protocols such as SPI, IIC, etc. The
CL765 provides IIC bus master for LCD’s register setting. For RGB-Type LCD
having other serial interface than IIC, the CL765 supports the protocol by
programming the GPIO.
R_PCLK
LCD interface
R_VSYNC
R_HSYNC
R_VDEN(optional)
R_DA[17:0]
RGB_type
LCD
CL765
IIC_SDA
IIC_SCL
Figure 4-25: The Generic Interconnection between the CL765
and RGB-Type LCD Module
The pins used in the interconnection are:
R_DA[17:0]: 18-bit data bus for transferring image data
R_PCLK: pixel clock from the CL765 to LCD module
R_VSYNC: Vertical sync signal. The polarity is programmable (by default,
active-low).
R_HSYNC: Horizontal sync signal. The polarity is programmable (by
default, active-low).