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参数资料
| 型号： | M34280E1GP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 4-BIT, OTPROM, 4 MHz, MICROCONTROLLER, PDSO20 |
| 封装： | 0.225 INCH, 0.65 MM PITCH, PLASTIC, SSOP-20 |
| 文件页数： | 7/48页 |
| 文件大小： | 630K |
| 代理商： | M34280E1GP |
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14
MITSUBISHI MICROCOMPUTERS
4280 Group
SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER for INFRARED REMOTE CONTROL TRANSMITTERS
CARRIER GENERATING CIRCUIT
The 4280 Group can output the various carrier waveforms by
the carrier wave selection register C.
Set the contents of this register through register A with the TCA
instruction. The TAC instruction can be used to transfer the
contents of register C to register A. When the TCA instruction is
executed, the output latch of port CARR is cleared to “0.”
The carrier waveform selected by setting register C can be output
from port CARR by setting port CARR output latch to “1.” When
the CARR output latch is cleared to “0,” carrier wave output is
stopped and port CARR output is fixed to “L” level. The CARR
output latch can be set through bit 3 (A3) of register A with the
OCRA instruction.
The relationship between the setting value of register C and
selected waveform is described below.
Also, timer 1 can auto-control the carrier wave output from port
CARR by setting the timer control register V1.
Fig. 15 Carrier wave selection register
No carrier wave
C2
1/4
1/2
1/3
1/2
O CRA
LA
0
LA
8
O CRA
(TC A)
f(XIN)/4
1/2
(Note)
Carrier wave selection register C (at reset: 1112, at RAM back-up: 1112)
Register C
setting value
C1 C0
“H”
“L”
“H”
“L”
“H”
“L”
“H”
“L”
“H”
“L”
“H”
“L”
“H”
“L”
“H”
“L”
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Output waveform
Carrier wave
Frequency
Duty
System clock/
12
System clock/
8
System clock
“L” level fixed
Note: This carrier wave can be used only when system clock f(XIN)/8 is selected.
The carrier wave output is fixed to “L” level when system clock f(XIN) is selected.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| M34280M1 | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER for INFRARED REMOTE CONTROL TRANSMITTERS |
| M34280M1-060FP | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER for INFRARED REMOTE CONTROL TRANSMITTERS |
| M34280M1-082GP | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER for INFRARED REMOTE CONTROL TRANSMITTERS |
| M34280M1-089FP | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER for INFRARED REMOTE CONTROL TRANSMITTERS |
| M34280M1-105FP | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER for INFRARED REMOTE CONTROL TRANSMITTERS |
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