參數(shù)資料
型號(hào)： M34551M4
廠商： Mitsubishi Electric Corporation
英文描述： SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER for INFRARED REMOTE CONTROL TRANSMITTER
中文描述： 單芯片4位CMOS微機(jī)紅外遙控器
文件頁(yè)數(shù)： 58/68頁(yè)
文件大小： 698K
代理商： M34551M4
58
MITSUBISHI MICROCOMPUTERS
4551 Group
SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER for
INFRARED REMOTE CONTROL TRANSMITTER
CONTROL REGISTERS
V1
3
V1
2
V1
1
V1
0
Timer 2 interrupt enable bit
Timer 1 interrupt enable bit
Not used
External 0 interrupt enable bit
0
1
0
1
0
1
0
1
Interrupt disabled (SNZT2 instruction is valid)
Interrupt enabled (SNZT2 instruction is invalid)
Interrupt disabled (SNZT1 instruction is valid)
Interrupt enabled (SNZT1 instruction is invalid)
This bit has no function, but read/write is enabled.
Interrupt disabled (SNZ0 instruction is valid)
Interrupt enabled (SNZ0 instruction is invalid)
Interrupt control register V1
at reset : 0000
2
at power down : 0000
2
R/W
Prescaler control bit
Prescaler dividing ratio selection bit
Timer 1 count source selection bits
Timer control register W1
W1
3
W1
2
W1
1
W1
0
at reset : 0000
2
at power down : 0000
2
0
1
0
1
R/W
Stop (prescaler state initialized)
Operating
Instruction clock (INSTCK) divided by 4
Instruction clock (INSTCK) divided by 8
Count source
Prescaler output (ORCLK)
Carrier output (CARRY)
Carrier output divided by 2 (CARRY/2)
W1
1
0
0
1
1
W1
0
0
1
0
1
Timer control register W2
at reset : 1000
2
at power down : – – – 0
2
R/W
0
1
f(X
CIN
)
Prescaler output (ORCLK)
W2
3
W2
2
W2
1
W2
0
Timer 2 count source selection bit
Timer 2 count value selection bits
Timer 1 control bit
W2
2
0
0
1
1
W2
1
0
1
0
1
Count source
Underflow occur every 2
14
count
Underflow occur every 2
13
count
Not available
Not available
Stop (timer 1 state retained)
Operating
0
1
Timer control register W3
at reset : 00
2
at power down : state retained
R/W
0
1
0
1
Bit 3 of timer 2 is output (timer 2 count source divided by 16)
State clock (STCK)
Stop (timer LC state retained)
Operating
W3
1
W3
0
Timer LC count source selection bit
Timer LC control bit
Note: “R” represents read enabled, and “W” represents write enabled.
“–” represents state retained.
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