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ST7787 Datasheet(PDF) 144 Page - Sitronix Technology Co., Ltd. |
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ST7787 Datasheet(HTML) 144 Page - Sitronix Technology Co., Ltd. |
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144 / 217 page  ST7787 Ver. 1.7 2008.04.18 144 10.1.25 SCRLAR (33h): Scroll Area 33H SCRLAR (Scrolll Area) Inst / Para D/CX WRX RDX D17-8 D7 D6 D5 D4 D3 D2 D1 D0 (Code) PTLAR 0 ↑ 1 - 0 0 1 1 0 0 1 1 (33h) 1 st Parameter 1 ↑ 1 - --- --- --- --- --- --- --- TFA8 2 nd Parameter 1 ↑ 1 - TFA7 TFA6 TFA5 TFA4 TFA3 TFA2 TFA1 TFA0 3 rd Parameter 1 ↑ 1 - --- --- --- --- --- --- --- VSA8 4 th Parameter 1 ↑ 1 - VSA7 VSA6 VSA5 VSA4 VSA3 VSA2 VSA1 VSA0 5 th Parameter 1 ↑ 1 - --- --- --- --- --- --- --- BFA8 6 th Parameter 1 ↑ 1 - BFA7 BFA6 BFA5 BFA4 BFA3 BFA2 BFA1 BFA0 NOTE: “-” Don’t care, can be set to VDDI or DGND level Description -This command defines the Vertical Scrolling Area of the display. When MADCTL ML=0 －The 1 st & 2nd parameter TFA [8:0] describes the Top Fixed Area (in No. of lines from Top of the Frame Memory and Display). －The 3 rd & 4th parameter VSA [8:0] 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 5 th & 6th parameter BFA [8:0] 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 row address. When MADCTL ML=1 －The 1 st & 2nd parameter TFA [8:0] describes the Top Fixed Area (in No. of lines from Bottom of the Frame Memory and Display). －The 3 rd & 4th parameter VSA [8:0] 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 top most line of the Top Fixed Area. －The 5 th & 6th parameter BFA [8:0] describes the Bottom Fixed Area (in No. of lines from Top of the Frame Memory and Display). See Section 9.10.4 for details of the Memory to Display Mapping. Restriction -In Vertical Scroll Mode, MADCTL parameter MV should be set to ‘0’-this only affects the Frame Memory Write. TFA[8:0]+VSA[8:0]+BFA[8:0] must equal to 320 or abnoemal display will be observed. Register Availability Status Availability Normal Mode On, Idle Mode Off, Sleep Out Yes Normal Mode On, Idle Mode On, Sleep Out Yes Partial Mode On, Idle Mode Off, Sleep Out Yes Partial Mode On, Idle Mode On, Sleep Out Yes Sleep In Yes Top-Left (0,0) Top Fixed Area TFA [8:0] Scroll Fixed Area VSFA [8:0] First line read from Bottom Fixed Area BFA [8:0] Top-Left (0,0) Bottom Fixed Area BFA [8:0] Scroll Fixed Area VSFA [8:0] Top Fixed Area TFA [8:0] First line read from frame memory |
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