)
( mode1)
ST7669V
7.3.8 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.
Tearing Effect Line Modes
FRAME
Frame1
Frame2
COMꢀscanꢀ
internalꢀsignalꢀ
1stꢁline
2 ndꢁline
3rdꢁline
142thꢁline
162thꢁline
TEꢀ
tVDH
tCYCLE
tHDH
tHDH
TEꢀ
( mode2
tVDH
tHCYC
20line
20line
142line
162line
142line
162line
Mode 1, the Tearing Effect Output signal consists of V-Sync(tVDH) information. It starts at 142nd line signal and ends at the
162nd 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 output
tHDH pulse on each COM scan signal. During 142nd ~ 162nd 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.
Ver 1.3
37/208
6/4/2008
SITRONIX [ SITRONIX TECHNOLOGY CO., LTD. ]
