參數(shù)資料
型號: M34551M4-XXXFP
元件分類: 微控制器/微處理器
英文描述: 4-BIT, MROM, 8 MHz, MICROCONTROLLER, PQFP48
封裝: 7 X 10 MM, 0.65 MM PITCH, PLASTIC, QFP-48
文件頁數(shù): 21/71頁
文件大?。?/td> 966K
代理商: M34551M4-XXXFP
25
MITSUBISHI MICROCOMPUTERS
4551 Group
SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER for
INFRARED REMOTE CONTROL TRANSMITTER
Fig. 23 Carrier wave output auto-control by timer 1
Timer 1 underflow
Port CARR output
v
(C20)
←0
Register C20
v
(C20)
←1
v
(C20)
←0
v
(C20)
←1
a
b
c
v
Set the interval
“a” to timer 1.
v
Set the interval “b” to
reload register R1.
v
Set the interval “c” to
reload register R1.
v
Set the interval “d” to
reload register R1.
d
Timer 1
underflow
Port CARR
output
(C20)
←1
Carrier wave output start
Timer 1 start
v
Carrier wave output start
“H”
“L”
“1”
“0”
“1”
“0”
“H”
“L”
“1”
“0”
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