NT68P61A Datasheet, PDF (27/48 Pages) List of Unclassifed Manufacturers – 8-Bit Microcontroller for Monitor (24K OTP ROM Type)

NT68P61A
Latch VCNT register
Reset V sync. counter
Start pulse counting
VSYNCI
Latch VCNT register
Reset V sync. counter
Start pulse counting
Sampling Clock
8 µs
Figure 14. Vsync Counter Operation
Latch HCNT register
Reset H sync. counter
Start pulse counting
VSYNCI
Latch HCNT register
Reset H sync. counter
Start pulse counting
HSYNCI
Figure 15. Hsync Counter Operation Using Vsync Pulse
Latch HCNT register
Reset H sync. counter
Start pulse counting
HSEL = Low
8.192 ms
HSYNCI
Latch HCNT register
Reset H sync. counter
Start pulse counting
Figure 16. Hsync Counter Operation Using 8.192ms Time Interval
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