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ST7789V2 Datasheet(PDF) 210 Page - Sitronix Technology Co., Ltd. |
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ST7789V2 Datasheet(HTML) 210 Page - Sitronix Technology Co., Ltd. |
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210 / 319 page  ST7789V2 Version 1.0 Page 210 of 319 2016/11 Sitronix Confidential The information contained herein is the exclusive property of Sitronix and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of Sitronix. 9.1.25 VSCRDEF (33h): Vertical Scrolling Definition 33H (Vertical Scrolling Definition) Inst / Para D/CX WRX RDX D17-8 D7 D6 D5 D4 D3 D2 D1 D0 HEX VSCRDEF 0 ↑ 1 - 0 0 1 1 0 0 1 1 (33h) 1st parameter 1 ↑ 1 - TFA15 TFA14 TFA13 TFA12 TFA11 TFA10 TFA9 TFA8 2nd parameter 1 ↑ 1 - TFA7 TFA6 TFA5 TFA4 TFA3 TFA2 TFA1 TFA0 3rd parameter 1 ↑ 1 - VSA15 VSA14 VSA13 VSA12 VSA11 VSA10 VSA9 VSA8 4th parameter 1 ↑ 1 - VSA7 VSA6 VSA5 VSA4 VSA3 VSA2 VSA1 VSA0 5th parameter 1 ↑ 1 BFA15 BFA14 BFA13 BFA12 BFA11 BFA10 BFA9 BFA8 6th parameter 1 ↑ 1 BFA7 BFA6 BFA5 BFA4 BFA3 BFA2 BFA1 BFA0 Description -This command just defines the Vertical Scrolling Area of the display and not performs vertical scroll -When MADCTL MV=0 -The 1st & 2nd parameter TFA [15:0] describes the Top Fixed Area (in No. of lines from Top of the Frame Memory and Display). -The 3rd & 4th parameter VSA [15:0] describes the height of the Vertical Scrolling Area (in No. of lines of the Frame Memory [not the display] from the Vertical Scrolling Start Address) The first line appears immediately after the bottom most line of the Top Fixed Area. -The 4th & 5th parameter BFA [6:0] describes the Bottom Fixed Area (in No. of lines from Bottom of the Frame Memory and Display). TFA, VSA and BFA refer to the Frame Memory Line Pointer Restriction The condition is TFA+VSA+BFA = 320, otherwise Scrolling mode is undefined. |
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