MITSUBISHI MICROCOMPUTERS
M37274EFSP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
Blocks are displayed in conformance with the following rules:
(2) Display Position
1
When the display position is overlapped with another block
(Figure 68, (b)), a lower block number (1 to 16) is displayed on
the front.
The display positions of characters are specified by a block. There
are 16 blocks, blocks 1 to 16. Up to 40 characters can be displayed
in each block (refer to (6) Memory for OSD).
The display position of each block can be set in both horizontal and
vertical directions by software.
2When another block display position appears while one block is
displayed (Figure 68 (c)), the block with a larger set value as the
vertical display start position is displayed. However, do not dis-
play block with the dot size of 2TC ✕ 2H or 3TC ✕ 3H during dis-
The display position in the horizontal direction can be selected for all
blocks in common from 256-step display positions in units of 4 TOSC
(TOSC = OSD oscillation cycle).
play period ( ) of another block.
✽
The display position in the vertical direction for each block can be
selected from 1024-step display positions in units of 1 TH ( TH = HSYNC
cycle).
✽ In the case of OSD mode block: 20 dots in vertical from the verti-
cal display start position.
✽ In the case of CC or EXOSD mode block: 26 dots in vertical from
the vertical display start position.
(HR)
VP11, VP21
Block 1
Block 2
Block 3
VP12, VP22
VP13, VP23
(a) Example when each block is separated
(HR)
VP11, VP12 = VP21, VP22
Block 1
(Block 2 is not displayed)
(b) Example when block 2 overlaps with block 1
(HR)
VP11, VP21
VP12, VP22
Block 1
Block 2
(c) Example when block 2 overlaps in process of block 1
Note: VP1i or VP2i (i : 1 to 16) indicates the vertical display start position of display block i.
Fig. 68. Display Position
69
RENESAS [ RENESAS TECHNOLOGY CORP ]
