m37280eksp Mitsumi Electronics, Corp., m37280eksp Datasheet - Page 74

• Manufacturer Part Number: m37280eksp
• Description: Single-chip 8-bit Cmos Microcomputer With Closed Caption Decoder And On-screen Display Controller
• Manufacturer: Mitsumi Electronics, Corp.

12.11.2 Display Position
The display positions of characters are specified by a block. There
are 16 blocks, blocks 1 to 16. Up to 32 characters can be displayed
in each block (refer to “12.11.6 Memory for OSD”).
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 256-step display positions in units of 4 T
(T
The display position in the vertical direction for each block can be
selected from 1024-step display positions in units of 1 T
cycle).
Blocks are displayed in conformance with the following rules:
• When the display position is overlapped with another block
• When another block display position appears while one block is .
Fig. 12.11.8 Display Position
74
(Figure 12.11.8 (b)), a lower block number (1 to 16) is displayed on
the front.
displayed (Figure 12.11.8 (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 2T
period ( ) of another block.
OSC
= OSD oscillation cycle).
Note: VP1i or VP2i (i : 1 to 16) indicates the vertical display start position of display block i.
(a) Example when each block is separated
(b) Example when block 2 overlaps with block 1
(c) Example when block 2 overlaps in process of block 1
VP11, VP21 = VP12, VP22
C
2H or 3T
VP11, VP21
VP11, VP21
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
VP12, VP22
HP
HP
HP
VP12, VP22
VP13, VP23
C
3H during display
H
( T
H
M37280MF–XXXSP, M37280MK–XXXSP
= H
SYNC
OSC
In the case of OSD mode block: 20 dots in vertical from the vertical
display start position.
In the case of CC or CDOSD mode block: 26 dots in vertical from
the vertical display start position.
Block 1
Block 2
Block
Block 1
Block 1
Block 2
(Block 2 is not displayed)
3
and ON-SCREEN DISPLAY CONTROLLER
MITSUBISHI MICROCOMPUTERS
M37280EKSP
Rev. 1.0