ST7689-G4 View Datasheet(PDF) - Sitronix Technology Co., Ltd.
Part Name
Description
MFG CO.
ST7689-G4
Sitronix Technology Co., Ltd.
'ST7689-G4' PDF : 195 Pages View PDF
ST7689
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
COM scan
internal signal
1st line
2nd line
Frame1
Frame2
End line
TE
( mode1)
TE
( mode2)
t HDH
t HCYC
tVDH
t HDH
tVDH
t CYCLE
Mode 1, the Tearing Effect Output signal consists of V-Sync(tVDH) information. 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.
Note: During Sleep In Mode, the Tearing Effect Output Pin is active Low.
Version 1.0
Page 45 of 195
2009/10
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