HD
HBLK
HBLKTOGE1
HBLKTOGE2
BLANK
BLANK
BASIC HBLK PULSE IS GENERATED USING HBLKTOGE1 AND HBLKTOGE2 REGISTERS (HBLKALT = 0)
Figure 26. Typical Horizontal Blanking (HBLK) Pulse Placement
HD
HBLK
HL/H1/H3
H1/H3
H2/H4
THE POLARITY OF HL/H1/H3 DURING BLANKING ARE INDEPENDENTLY PROGRAMMABLE
(H2/H4 IS OPPOSITE POLARITY OF H1/H3)
Figure 27. HBLK Masking Polarity Control
AD9923A
...
...
HBLK
HBLKTOGE1
HBLKTOGE2
HBLKTOGE4
HBLKTOGE3
HBLKTOGE6
HBLKTOGE5
HL/H1/H3
H2/H4
SPECIAL H-BLANK PATTERN IS CREATED USING MULTIPLE HBLK TOGGLE POSITIONS (HBLKALT = 0)
Figure 28. Using Multiple Toggle Positions for HBLK (HBLKALT = 0)
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