HD66781 Datasheet, PDF (108/196 Pages) Renesas Technology Corp – 720-channel Source Driver for a-Si TFT/Low Temperature Poly-Si TFT Panels with 262,144-color display RAM

HD66781
Preliminary
Notes to the resizing function
1. Make settings for resizing instructions (RSR, RCV, and RCH) before writing data to RAM.
2. Write data to RAM from the start position of the window address by line when using resizing function.
3. Fit the window-address range into the size of the resized picture.
4. Make an address set before writing data to RAM when using resizing function.
5. Settings for RCH, RCV are only required when using resizing function. Otherwise (RSR = 2’h0), set
RCH = RCV = 2’h0.
Resi zi n g setti ng
(RSR, RCH,RCV)
Window addr ess sett i ng
(HSA , H SE, VSA, VE A)
Addr ess set
RAM dat a wr it e
Note: The window-address range must be fit into
the size of a resized image
RAM Writing flow when using resizing
Rev.0.5, July.31.2003, page 108 of 196