參數資料
型號： M37274EFSP
元件分類： 微控制器/微處理器
英文描述： 8-BIT, OTPROM, 8.1 MHz, MICROCONTROLLER, PDIP52
封裝： 0.600 INCH, 1.78 MM PITCH, PLASTIC, SDIP-52
文件頁數： 148/148頁
文件大小： 1946K
代理商： M37274EFSP
98
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
M37274EFSP
PRELIMINARY
Notice:
This
is not
a final
specification.
Some
paramentic
limits
are
subject
to change.
MITSUBISHI MICROCOMPUTERS
(15) OSD Output Pin Control
The OSD output pins R, G, B, and OUT1 can also function as ports
P52, P53, P54 and P55. Set the corresponding bit of the OSD port
control register (address 00CB16) to “0” to specify these pins as OSD
output pins, or set it to “1” to specify it as a general-purpose port P5
pins. The OUT2 can also function as port P10. Set the corresponding
bit of the port P1 direction register (address 00C316) to “1” (output
mode). After that, switch between the OSD output function and the
port function by the OSD port control register. Set the corresponding
bit to “1” to specify the pin as OSD output pin, or set it to “0” to specify
as port P1 pin.
The input polarity of the HSYNC, VSYNC and output polarity of signals
R, G, B, OUT1 and OUT2 can be specified with the I/O polarity con-
trol register (address 021716) . Set a bit to “0” to specify positive
polarity; set it to “1” to specify negative polarity (refer to Figure 78).
The OSD port control register is shown in Figure 100.
Fig. 100. OSD Port Control Register
b7 b6 b5 b4 b3 b2 b1 b0
OSD port control register (PF) [Address 00CB16]
B
Name
Functions
After reset R W
OSD Port Control Register
0
2
3
0 : G signal output
1 : Port P53 output
0
Fix these bits to “0.”
RW
0, 1,
7
Port P53 output signal
selection bit (G)
4
0 : B signal output
1 : Port P54 output
0R W
Port P54 output signal
selection bit (B)
0R W
0 : R signal output
1 : Port P52 output
Port P52 output signal
selection bit (R)
5
0 : OUT1 signal output
1 : Port P55 output
Port P55 output signal
selection bit (OUT1)
6
0 : Port P10 output
1 : OUT2 signal output
Port P10 output signal
selection bit (OUT2)
00
0
Note. Set bit 0 of Port P1 direction register (address 00C3 16) to "1" (output mode).
(Note)
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相關代理商/技術參數
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M37274MA 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER
M37274MA-052SP 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER
M37274MA-053SP 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER
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