7220 Datasheet, PDF (102/303 Pages) Renesas Technology Corp – 8-BIT SINGLE-CHIP MICROCOMPUTER

FUNCTIONAL DESCRIPTION
2.11 CRT display function
The block 2 is displayed after the display of block 1 is completed (refer to “Figure 2.11.5 (a)”). Therefore,
set vertical display start position of block 2 to be lower than the display end position of block 1. The block
2 cannot display when the display position of block 2 is overlapped with the display position of block 1
(refer to “Figure 2.11.5 (b)”) or is higher than the display position of block 1 (refer to “Figure 2.11.5 (c)”).
Same as above, at the multiline display, the next block 1 cannot be displayed until the display of block 2
is completed. Therefore, set the display start position of the second and later block 1 to be lower than the
display position of the last block 2 (refer to “Figure 2.11.5 (d)”).
(HR)
CV1
CV2
Block 1
Block 2
(a) Example when each block is separated.
(HR)
CV1
CV2
Block 1
Block 2
Because the block 2 overlaps with
the block 1, the block 2 cannot be
displayed.
(b) Example when block 2 overlaps with block 1.
(HR)
CV2
CV1
Because the block 2 is
higher than the block 1, the
block 2 cannot be displayed.
Block 2
Block 1
(c) Example when the block 2 is higher than the block 1.
(HR)
CV2
(last displayed) CV1
Block 1 (last display)
Block 2 (last display)
Block 1
Because the block 1 overlaps
with the last display of block 2,
the block 1 cannot be displayed.
(d) Example when the block 1 overlaps with the last
display of block 2 at the multiline display.
Fig. 2.11.5 Display position
7220 Group User’s Manual
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