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參數(shù)資料
| 型號： | M34280E1GP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 4-BIT, OTPROM, 4 MHz, MICROCONTROLLER, PDSO20 |
| 封裝： | 0.225 INCH, 0.65 MM PITCH, PLASTIC, SSOP-20 |
| 文件頁數(shù)： | 10/48頁 |
| 文件大?。?/td> | 605K |
| 代理商： | M34280E1GP |
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15
MITSUBISHI MICROCOMPUTERS
4280 Group
SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER for INFRARED REMOTE CONTROL TRANSMITTERS
LOGIC OPERATION FUNCTION
The 4280 Group has the 4-bit logic operation function. The logic
operation between the contents of register A and the low-order 4
bits of register E is performed and its result is stored in register
A.
Each logic operation can be selected by setting logic operation
selection register LO.
Set the contents of this register through register A with the TLOA
instruction. The logic operation selected by register LO is
executed with the LGOP instruction.
Table 5 shows the logic operation selection register LO.
Table 5 Logic operation selection register LO
at reset : 002
at RAM back-up : 002
W
LO1
0
1
LO0
0
1
0
1
LO1
LO0
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
Fig. 16 Port CARR output auto-control by timer 1
Note: “W” represents write enabled.
a
b
c
d
(V11)
←0
CARRY
a
b
cd
Timer 1 start
Timer 1 underflow
Port CARR output
“1”
“0”
“H”
“L”
Set the interval “a” to timer 1.
Select count source CARRY
Set the interval “b”
to reload register R1.
Set the interval “c”
to reload register R1.
Set the interval “d”
to reload register R1.
Carrier wave output start
Timer 1 underflow
Port CARR output
“1”
“0”
“H”
“L”
“1”
“0”
Register V12
Carrier wave output start
(V12)
←1
(V10)
←1
Auto-control valid
“H”
“L”
Auto-control invalid
Carrier wave output stop
(Note)
Note: When timer 1 is stopped, the port CARR output auto-control is terminated regardless of bit 2 (V12) of register V1.
Timer 1 stop
(V10)
←0
(V12)
←0 (V12)←1
(V12)
←0 (V12)←1
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