MC68HC705T16 MOTOROLA [Motorola, Inc], MC68HC705T16 Datasheet - Page 80

• Manufacturer Part Number: MC68HC705T16
• Description: High-density complementary metal oxide semiconductor (HCMOS) microcontroller unit
• Manufacturer: MOTOROLA [Motorola, Inc]

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that could have been displayed, the OSD is so designed that these remaining lines will not be
displayed. The same result applies to the complete overlap situation with different character sizes.
A row display is terminated if:
Note that the judgement of overlap is totally based on the vertical position of rows, it has nothing
to do with character size of rows. RiCF bit of Frame Control 3 and Status register will also be set
when a row display is terminated.
MOTOROLA
9-10
1) the part of the row display which is not overridden by other overlapping rows
2) it completely overlaps a row or rows with higher priority, or
3) the part of the row display which does not overlap vertical retrace period has
has been completed, or
been completed. (This applies to rows immediately before vertical retrace)
Figure 9-4 Output Signal Timing Diagram - Without Background
Background
R, G, B, or I
R, G, B, or I
R, G, B, or I
Char
HTONE
FBKG
RiBE=0, BGEN=0, FBKGCi=X
ON-SCREEN DISPLAY
Timing signals for 5th line (line 4)
RiBE=1, SHDW=0, BGEN=0, FGKGCi=X
MC68HC05T16
TPG