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18.3.2.2
Horizontal Synchronous Operation
Horizontal synchronous operation can be synchronized with the leading edge or trailing
edge.
■ Horizontal Synchronous Operation
The horizontal synchronous operation is required the setting of the horizontal synchronous
operation edge selection of I/O pin control 2 (command 13-1) and the horizontal synchronous
signal input logic control.
Table 18.3-12 and Table 18.3-13 show the horizontal synchronous operation edge selection.
Table 18.3-12 Horizontal Synchronous Operation Edge Selection
HE
0
1
Table 18.3-13 Horizontal Synchronous Signal Input Logic Control
IHX
0
1
■ Example of Horizontal Synchronous Operation
Figure 18.3-4 and Figure 18.3-5 show examples of horizontal synchronous operation.
Figure 18.3-4 Horizontal Synchronous Operation at Trailing Edge (HE=0, IHX=0)
HSYNC input
Internally
detected HSYNC
Figure 18.3-5 Horizontal Synchronous Operation at Leading Edge (HE=0, IHX=0)
HSYNC input
Internally
detected HSYNC
Horizontal synchronous operation edge
Trailing edge
Leading edge
Horizontal sync signal input logic
HSYNC pin is negative logic input.
HSYNC pin is positive logic input.
CHAPTER 18 OSDC
551
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