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參數(shù)資料
| 型號(hào)： | M34280 |
| 廠商： | Mitsubishi Electric Corporation |
| 英文描述： | Single-Chip 4-Bit CMOS Microcomputer for Infrared Remote Control Transmitters(用于紅外線遠(yuǎn)程遙控發(fā)送器的4位單片機(jī)) |
| 中文描述： | 單芯片4位CMOS紅外遙控發(fā)射器（用于紅外線遠(yuǎn)程遙控發(fā)送器的4位單片機(jī)微機(jī)） |
| 文件頁數(shù)： | 31/47頁 |
| 文件大?。?/td> | 508K |
| 代理商： | M34280 |
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MITSUBISHI
ELECTRIC
36
MITSUBISHI MICROCOMPUTERS
4280 Group
SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER for INFRARED REMOTE CONTROL TRANSMITTERS
CONTROL REGISTERS
V1
2
V1
1
V1
0
Timer control register V1
Auto-control output by timer 1 is invalid
Auto-control output by timer 1 is valid
Carrier output (CARRY)
Bit 5 of watchdog timer (WDT)
Stop (Timer 1 state retained)
Operating
0
1
0
1
0
1
Carrier wave output auto-control bit
Timer 1 count source selection bit
Timer 1 control bit
at reset : 000
2
W
at RAM back-up : 000
2
PU0
2
PU0
1
PU0
0
Pull-down transistor OFF, input circuit OFF, key-on wakeup invalid
Pull-down transistor ON, input circuit ON, key-on wakeup valid
Pull-down transistor OFF, key-on wakeup invalid
Pull-down transistor ON, key-on wakeup valid
Pull-down transistor OFF, key-on wakeup invalid
Pull-down transistor ON, key-on wakeup valid
Port D
7
pull-down control bit
Port E
1
pull-down control bit
Port E
0
pull-down control bit
Pull-down control register PU0
at reset : 000
2
at RAM back-up : state retained
W
0
1
0
1
0
1
Carrier wave selection register C
at reset : 111
2
at RAM back-up : 111
2
R/W
C
2
0
0
0
0
1
1
1
1
C
1
0
0
1
1
0
0
1
1
C
0
0
1
0
1
0
1
0
1
Frequency
System clock/12
System clock/12
System clock/8
System clock/8
System clock
f(X
IN
)/4 (Note 2)
Duty
1/3
1/2
1/4
1/2
1/2
1/2
Carrier wave
at reset : 00
2
at RAM back-up : 00
2
W
L
O
1
0
0
1
1
L
O
0
0
1
0
1
LO
1
LO
0
Logic operation selection bits
Logic operation selection register LO
Logic operation function
Exclusive logic OR operation (XOR)
OR operation (OR)
AND operation (AND)
Not available
Notes 1: “R” represents read enabled, and “W” represents write enabled.
2: f(X
IN
) is valid only when f(X
IN
)/8 is selected as the system clock.
No carrier wave
“L” level fixed
Carrier wave selection bits
C
2
C
1
C
0
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