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Panasonic Semiconductor Development Company
HSHT0
HSHT1
ABCDE
Television screen
HSHT0
HSHT1
ABCDE
Television screen
Figure 7-34 Shutter Blanking Setup Examples
7.13.4 Controlling Line Shuttering
It is possible to cancel shuttering of individual lines on the text and graphics
layers so that they will be displayed on both shuttered and non-shuttered regions.
To disable shuttering on the next line:
Set the GSHT bit (bit 10 of GHP in the RAM data) and/or the CSHT bit (bit 10 of
CHP in the RAM data) to 1.
To disable shuttering on the first line:
Set the GISHT bit of the GIHP register (x'007F16') and/or the CISHT bit of the
CIHP register (x'007F14') to 1.
Figure 7-35 shows a setup example for the text layer.
ABCDEFG
Line 1: CISHT = 1
ABCDEFG
Line 2: CSHT = 0
Line 3: CSHT = 0
ABCDEFG
Line 4: CSHT = 1
Figure 7-35 Line Shuttering Setup Example
200
Panasonic
On-Screen Display
Controlling the Shuttering Effect
CCSHT = 0: Shuttering of text disabled
BCSHT = 0: Shuttering of text background disabled
VSHT0
SHTBLK = 1: Shuttered area is blank
VSHT1
Shuttered area
Shuttered area is blank (black).
Color background
CCSHT = 0: Shuttering of text disabled
BCSHT = 0: Shuttering of text background disabled
VSHT0
SHTBLK = 1: Shuttered area is blank
COLBSHT = 1: Color background is shuttered
VSHT1
Television screen
MN102H75K/F75K/85K/F85K LSI User Manual
Shuttering
effect
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