參數(shù)資料
型號: M34553M8H-XXXFP
元件分類: 微控制器/微處理器
英文描述: 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PQFP48
封裝: 7 X 7 MM, 0.50 MM PITCH, PLASTIC, LQFP-48
文件頁數(shù): 84/147頁
文件大?。?/td> 1098K
代理商: M34553M8H-XXXFP
Rev.3.02
Dec 22, 2006
page 39 of 142
REJ03B0024-0302
4553 Group
Fig. 28 Timer 2 count start/stop timing
(R2L)
(R2H)
(R2L)
Timer 2 count start timing
Waveform extension function of CNTR output “H” interval: Invalid (W22 = “0”),
CNTR output: valid (W23 = “1”),
Count source: XIN input selected (W20 = “0”),
Reload register R2L: “0316
Reload register R2H: “0216
Timer 2 count start timing
TW2A instruction execution cycle (W21)
← 1
0216 0116 0016
0216
0316
0216 0116 0016
0316
0216
0016
0016 0216 0116 0016 0316 0216 0116
0216
(R2H)
(R2L)
0116
(R2H)
(Note 1)
Notes 1: In order to stop timer 2 at CNTR output valid (W23 = “1”), avoid a timing when timer 2 underflows.
If these timings overlap, a hazard may occur in a CNTR output waveform.
2: At CNTR output valid, timer 2 stops after “H” interval of PWM signal set by reload register R2H is output.
Mi
Mi+1
Mi+2
Mi
Mi+1
Mi+2
0116
Timer 2 count value
(Reload register)
Timer 2
underflow signal
PWM signal
Machine cycle
XIN input
(count source selected)
System clock
f(STCK)=f(XIN)/4
Register W21
q
Timer 2 count stop timing
TW2A instruction execution cycle (W21)
← 0
Timer 2 count stop timing
Timer 2 count value
(Reload register)
Timer 2
underflow signal
PWM signal
Machine cycle
XIN input
(count source selected)
System clock
f(STCK)=f(XIN)/4
Register W21
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