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CHAPTER 18 OSDC
18.3.2
Sync Signal Input
This section explains vertical synchronization detection and horizontal synchronization
operation in sync signal input.
■ Sync Signal Input
Vertical synchronization detection
The level of vertical sync signal is sensed at the leading or trailing edge of the horizontal sync
pulse to detect the transition.
Horizontal synchronous operation
Horizontal synchronous operation can be synchronized with the leading edge or trailing edge.
Field detection
The field state for interlaced display is detected by monitoring the falling edge of the vertical sync
signal.
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