M37210M3 Datasheet, PDF (24/59 Pages) Mitsubishi Electric Semiconductor – SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER with ON-SCREEN DISPLAY CONTROLLER

MITSUBISHI MICROCOMPUTERS
M37210M3-XXXSP/FP, M37210M4-XXXSP, M37211M2-XXXSP
M37210E4-XXXSP/FP, M37210E4SP/FP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER
with ON-SCREEN DISPLAY CONTROLLER
(2) Display Position
The display positions of characters are specified in units called a
“block”. There are two blocks, block 1 and block 2.
Up to 18 characters can be displayed in one block (refer to (4)
Memory for Display).
The display position of each block in both horizontal and vertical di-
rections can be set by software.
The horizontal direction is common to all blocks, and is selected from
64-step display positions in units of 4Tc (Tc = oscillating cycle for dis-
play).
The display position in the vertical direction is selected from 128-step
display positions for each block in units of four scanning lines.
Block 2 is displayed after the display of block 1 perfectly (fig. 24(a)).
Then if the display of block 2 starts during the display of block 1, only
block 1 is displayed. As same, when multiline display, block 1 is dis-
played after the display of block 2 perfectly (fig. 24(b)).
The vertical position can be specified from 128-step positions (four
scanning lines per step) for each block by setting values 0016 to 7F16
to bits 0 to 6 in the vertical position register (addresses 00E116 and
00E215). Figure 22 shows the structure of the vertical position regis-
ter.
7
0
Vertical position registers 1, 2
(CV1 : address 00E116)
(CV2 : address 00E216)
The vertical display start positions
128-step positions (0016 to 7F16)
Fig. 22 Structure of vertical position registers
The horizontal direction is common to all blocks, and can be speci-
fied from 64-step display positions (4Tc per step (Tc = oscillating
cycle for display) by setting values 0016 to 3F16 to bits 0 to 5 in the
horizontal position register (address 00E016). Figure 23 shows the
structure of the horizontal position register.
7
0
Horizontal position register
(HR : address 00E016)
The horizontal display start positions
64-step positions (0016 to 3F16)
Fig. 23 Structure of horizontal position register
24