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ST7787 Datasheet(PDF) 176 Page - Sitronix Technology Co., Ltd. |
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ST7787 Datasheet(HTML) 176 Page - Sitronix Technology Co., Ltd. |
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176 / 217 page ![]() ST7787 Ver. 1.7 2008.04.18 176 10.2.9 VSYNCIN (BDh): BDH VSYNCIN Inst / Para D/CX WRX RDX D17-8 D7 D6 D5 D4 D3 D2 D1 D0 (Code) VSYNCOUT 0 ↑ 1 - 1 0 1 1 1 1 0 1 (BDh) 1 st Parameter No Parameter NOTE: “-“ Don’t care Description -The frame to which the command is input finishes sending data by an internal vertical synchronizing signal. Afterward, an external vertical synchronizing signal is waiting for at the rest period. The operation after that becomes external synchronous. Operation enters the rest period when the transmission of data ends for one frame while the external is synchronizing. wait: Synchronous waiting period. Operation is external VSYNC perceives “L” level of the VSYNC signal and internal operate and after synchronization t, scans the display for one frame. External VSYNC signal through TE pin. Operation enters the synchronous waiting period again when the display sacanning ends. Restriction -If this register not using the register need be reserved. 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 OFF S/W Reset OFF H/W Reset OFF Flow Chart Legend Command Parameter Display Action Mode Sequential transfer Exxternal VSYNC disable VSYNCOUT(BDh) External VSYNC enable |
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