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ST7637 Datasheet(PDF) 40 Page - Sitronix Technology Co., Ltd. |
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ST7637 Datasheet(HTML) 40 Page - Sitronix Technology Co., Ltd. |
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40 / 210 page  ST7637 Ver 1.6 40/210 2009/03 7.4.8. Tearing Effect Output Line The Tearing Effect output line supplies to the MPU a Panel synchronization signal. This signal can be enabled or disabled by the Tearing Effect Line Off & On commands. The signal can be used by the MPU to synchronize Frame Memory Writing when displaying video images. 7.4.8.1. Tearing Effect Line Modes Mode 1, the Tearing Effect Output signal consists of V-Sync (tVHD) information. It starts at 124th line signal and ends at the 132th line signal. There is one high pulse during each frame. Mode 2, the Tearing Effect Output signal consists of both H-Sync(tHDH) and V-Sync(tVDH) information. TE pin outputs tHDH pulse on each COM scan signal. During 124th ~ 132th line signal, it output a high pulse which equals: 1 tHDH + 1 tVDH. Note: During Sleep In Mode, the Tearing Effect Output Pin is active Low. |
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