
MITSUBISHI MICROCOMPUTERS
M37207MF-XXXSP/FP, M37207M8-XXXSP
M37207EFSP/FP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER
and ON-SCREEN DISPLAY CONTROLLER
49
(2) Display Position
The display positions of characters are specified in units called a
“block.” There are 3 blocks, blocks 1 to 3. Up to 24 characters can be
displayed in each block (refer to (4) Memory for Display).
The display position of each block can be set in both horizontal and
vertical directions by software.
The display position in the horizontal direction can be selected for all
blocks in common from 64-step display positions in units of 4T
C
(T
C
= oscillating cycle for display).
The display position in the vertical direction for each block can be
selected from 128-step display positions in units of 4 scanning lines.
Block 2 is displayed after the display of block 1 is completed (refer to
Figure 46 (a)). Accordingly, if the display of block 2 starts during the
display of block 1, only block 1 is displayed. Similarly, when multiline
display, block 1 is displayed after the display of block 2 is completed
(refer to Figure 46 (b)).
The vertical position can be specified from 128-step positions (4 scan-
ning lines per a step) for each block by setting values “00
16
” to “7F
16
”
to bits 0 to 6 in the vertical position register (addresses 00E1
16
to
00E3
16
). Figure 48 shows the vertical position register.
Fig. 46. Display Position
(HR)
CV1
CV2
Block 1
Block 2
(a)Example when each block is separated
CV1
CV2
Block 1
Block 2
Block 1 (second)
CV1
No display
No display
(b)Example when block 2 overlaps with block 1
Block 3
CV3