SSD1963QL9R datasheet(35/93 Pages) ETC2

35 / 93 page

SSD1963

Rev 1.1

P 35/93

Jan 2010

Solomon Systech

Figure 9-9: Set Scroll Area with set_address_mode (0x36) A[4] = 0

(0,0)

Top Fixed Area

TFA[15:0]

First line read from memory

VSA[15:0]

BFA[15:0]

Bottom Fixed Area

If set_address_mode (0x36) A[4] = 1 :

The TFA[15:0], describes the Top Fixed Area in number of lines from the bottom of the frame buffer. The bottom of the

frame buffer and bottom of the display panel are aligned.

The VSA[15:0] describes the height of the Vertical Scrolling Area in number of lines of frame buffer from the Vertical

Scrolling Start Address. The first line of the Vertical Scrolling Area starts immediately after the top most line of the Top

Fixed Area. The last line of the Vertical Scrolling Area ends immediately before the bottom most line of the Bottom

Fixed Area.

The BFA[15:0] describes the Bottom Fixed Area in number of lines from the top of the frame buffer. The top of the

frame buffer and top of the display panel are aligned.

TFA, VSA and BFA refer to the Frame Buffer Line Pointer.

Figure 9-10: Set Scroll Area with set_address_mode (0x36) A[4] = 1

(0,0)

Bottom Fixed Area

BFA[15:0]

VSA[15:0]

First line read from memory

TFA[15:0]

Top Fixed Area

Note :

The sum of TFA, VSA and BFA must equal the number of the display panel’s horizontal lines (pages), otherwise

Scrolling mode is undefined.

In Vertical Scroll Mode, set_address_mode (0x36) A[5] should be set to ‘0’ – this only affects the Frame Buffer Write.

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