參數(shù)資料
型號： M37274MA
廠商： Mitsubishi Electric Corporation
英文描述： Single Chip 8 Bits Microcomputer(8位單片機(jī))
中文描述： 單芯片8位單片機(jī)（8位單片機(jī)）
文件頁數(shù)： 55/131頁
文件大?。?/td> 2049K
代理商： M37274MA
55
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
M37274MA-XXXSP
PRELIMINARY
Notice: This is not a final specification.
Some paramentic limits are subject to change.
MITSUBISHI MICROCOMPUTERS
Display Layer
Layer 1
Layer 2
Dot Size
1T
C
1/2H
1T
C
1H
2T
C
2H
3T
C
3H
1T
C
1/2H
1T
C
1H
2T
C
2H
3T
C
3H
1T
C
1/2H
1T
C
1H
2T
C
2H
3T
C
3H
1T
C
1/2H
1T
C
1H
1T
C
1/2H
1T
C
1H
1.5T
C
1/2H
1.5T
C
1H
b3
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
b4
0
0
1
1
0
0
1
1
0
0
1
1
—
—
0
0
1
1
b6
0
0
1
1
1
Table 12. Setting Value of Block Control Registers
Pre-divide
Ratio
1
2
3
1
2
b5
0
1
0
1
1
CS
6
—
—
—
0
1
Notes 1:
CS
6
: Bit 6 of clock control register (Address 0216
16
)
2:
T
C
: OSD clock cycle divided in the pre-divide circuit
3:
H : H
SYNC
Fig. 56. Block Control Registers
Fig. 55. OSD Control Register
Flash mode selection bit
0 : Color signal of character
background part does not
flash
1 : Color signal of character
background part flashes
Automatic solid space control
bit
0 : OFF
1 : ON
Window control bit
0 : OFF
1 : ON
Layer mixing control bits (Note 3)
b7 b6
0 0 : Logical sum (OR) of
layer 1’s color and
layer 2’s color
0 1 : Layer 1’s color has priority
1 0 : Layer 2’s color has priority
1 1 : Do not set
7
OSD control register
(OC : address 00CE
16
)
OSD control bit (Note 1)
0 : All-blocks display off
1 : All-blocks display on
Scan mode selection bit
0 : Normal scan mode
1 : Bi-scan mode
Border type selection bit
0 : All bordered
1 : Shadow bordered (Note 2)
Notes 1 :
Even this bit is switched during display, the display screen
remains unchanged until a rising (falling) of the next V
SYNC
.
2 :
Shadow border is output at right and bottom side of the font.
3 :
Set “00” during displaying extra fonts.
7
Block control register i
(i = 1 to 12)
(BCi : addresses 00D0
16
to 00BF)
Display mode selection bits
b1 b0
0 0 : Display OFF
0 1 : OSD mode
1 0 : CC mode
1 1 : EXOSD mode
Border control bit
0 : Border OFF
1 : Border ON
Notes 1:
Bit RC 14 of OSD RAM controls OUT1 output
when bit 7 is “0.”
Bit RC 14 of OSD RAM controls OUT2 output
when bit 7 is “1.”
2:
Note that EPROM version the block control registers
at addresses 00D0
16
to 00DF
16
when programming.
Dot size selection bit
Refer to Table 12.
Pre-divide ratio
layer selection
bits
Refer to Table 12.
OUT 2 output control bit (Note)
0 : OUT2 output OFF
1 : OUT2 output ON
0
0
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