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ST7789V2 Datasheet(PDF) 239 Page - Sitronix Technology Co., Ltd. |
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ST7789V2 Datasheet(HTML) 239 Page - Sitronix Technology Co., Ltd. |
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239 / 319 page  ST7789V2 Version 1.0 Page 239 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. 9.1.39 WRCTRLD (53h): Write CTRL Display 53H WRCTRLD (Write CTRL Display ) Inst / Para D/CX WRX RDX D17-8 D7 D6 D5 D4 D3 D2 D1 D0 HEX WRCTRLD 0 ↑ 1 - 0 1 0 1 0 0 1 1 (53h) Parameter 1 ↑ 1 - 0 0 BCTRL 0 DD BL 0 0 Description -This command is used to control display brightness. -BCTRL: Brightness Control Block On/Off, This bit is always used to switch brightness for display. 0 = Off (Brightness register are 00h, DBV[7:0]) 1 = On (Brightness register are active, according to the other parameters.) -DD: Display Dimming (Only for manual brightness setting) DD = 0: Display Dimming is off. DD = 1: Display Dimming is on. -BL: Backlight Control On/Off 0 = Off (Completely turn off backlight circuit. Control lines must be low.) 1 = On -Dimming function is adapted to the brightness registers for display when bit BCTRL is changed at DD=1. -When BL bit changed from ‘on’ to ‘off’, backlight is turned off without gradual dimming, even if dimming-on (DD=1) are selected. Restriction 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 Default Status Default Value Power On Sequence 0000h S/W Reset 0000h H/W Reset 0000h |
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