參數(shù)資料
型號： M37272EF8FP
廠商： Mitsubishi Electric Corporation
英文描述： SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER
中文描述： 單芯片8位CMOS微機隱蔽字幕解碼器和屏幕顯示控制器
文件頁數(shù)： 96/131頁
文件大小： 1297K
代理商： M37272EF8FP
96
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
M37272M6H/M8H/MAH/MFH
–
XXXSP/FP
M37272E8SP/FP, M37272EFSP/FP
MITSUBISHI MICROCOMPUTERS
Rev 1.0
RESET
Vss
Vcc
Circuit example 1
RESET
Vss
Vcc
Circuit example 2
Note :
Make the level change from “L” to “H” at the point at
which the power source voltage exceeds the specified
voltage.
8.15 DISPLAY OSCILLATION CIRCUIT
The OSD oscillation circuit has a built-in clock oscillation circuits, so
that a clock for OSD can be obtained simply by connecting an LC, a
ceramic resonator, or a quartz-crystal oscillator across the pins OSC1
and OSC2. Which of the sub-clock or the OSD oscillation circuit is
selected by setting bits 5 and 6 of the OSD control register (address
00D0
16
).
8.17 ADDRESSING MODE
The memory access is reinforced with 17 kinds of addressing modes.
Refer to SERIES 740 <Software> User’s Manual for details.
8.18 MACHINE INSTRUCTIONS
There are 71 machine instructions. Refer to SERIES 740 <Soft- ware>
User’s Manual for details.
9. PROGRAMMING NOTES
The divide ratio of the timer is 1/(n+1).
Even though the BBC and BBS instructions are executed imme-
diately after the interrupt request bits are modified (by the pro-
gram), those instructions are only valid for the contents before
the modification. At least one instruction cycle is needed (such as
an NOP) between the modification of the interrupt request bits
and the execution of the BBC and BBS instructions.
After the ADC and SBC instructions are executed (in the decimal
mode), one instruction cycle (such as an NOP) is needed before
the SEC, CLC, or CLD instruction is executed.
An NOP instruction is needed immediately after the execution of
a PLP instruction.
In order to avoid noise and latch-up, connect a bypass capacitor
(
≈
0.1
μ
F) directly between the V
CC
pin–V
SS
pin, AV
CC
pin–V
SS
pin, and the V
CC
pin–CNV
SS
pin, using a thick wire.
M37272M6H/M8H/MAH/MFH-XXXSP/FP and M37272E8SP/FP,
M37272EFSP/FP are compatible, but please attention differences
as follows:
Fig.8.15.1 Display Oscillation Circuit
8.16 AUTO-CLEAR CIRCUIT
When a power source is supplied, the auto-clear function will oper-
ate by connecting the following circuit to the RESET pin.
Fig.8.16.1 Auto-clear Circuit Example
OSC2
OSC1
L
C1
C2
Parameter
Spec of1 4th pins
Power souce voltage
When System operate
f(X
IN
) : 8MFz
M37272E8/EF
AVcc
M37272MXH
NC (Non connection)
OSD : OFF
Data slicer : OFF
OSD : ON
Data slicer : ON
Normal
15 mA
30mA
Max.
30 mA
45 mA
Normal
10 mA
25 mA
Max.
25 mA
40 mA
Need to apply 5V±10%(Typical), because 14th pin of
M37272E8SP/FP, M37272EFSP/FP is AVcc pin.
14 pin of M37272M6H/M8H/MAH/MFH-XXXSP/FP is the non
connection pin, but it is not connect in IC. You can apply voltage.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M37272EF8SP 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
M37272EFFP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER
M37272EFSP 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
M37272M6 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
M37272M6-205SP 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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