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YGV627 Datasheet(PDF) 3 Page - YAMAHA CORPORATION |
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YGV627 Datasheet(HTML) 3 Page - YAMAHA CORPORATION |
3 / 16 page YGV627 3 s s s s BLOCK DIAGRAM Drawing command CPU Memory control Sync. control PLL Display control Screen synthesis Digital video input Analog RGB YGV627 OSD screen CPU Interface SDRAM 16Mbit 16 16 TFT Panel Digital video output (Also used as digital video input pin) DAC YGV627 is connected to the external memory bus of CPU as an external I/O device. As a video memory, SDRAM of up to 64M bits can be connected to local memory bus of YGV627 to send bitmap image data stored in the video memory into monitor as RGB signal in accordance with display scan timing. YGV627 stores image data from CPU to the video memory by accessing video memory directly through CPU interface or by accessing the video memory using internal drawing command that transfers the data by block. YGV627 has a function that synthesizes external images with bitmap image of YGV627 on the screen by synchronizing the scan timing of YGV627 with display timing of external video signals. |
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