參數(shù)資料
型號: M3455AG8-XXXFP
元件分類: 微控制器/微處理器
英文描述: 4-BIT, OTPROM, 6 MHz, MICROCONTROLLER, PQFP52
封裝: 10 X 10 MM, 0.65 MM PITCH, PLASTIC, LQFP-52
文件頁數(shù): 85/148頁
文件大?。?/td> 1807K
代理商: M3455AG8-XXXFP
Rev.1.02
Nov 26, 2008
Page 41 of 146
REJ03B0224-0102
455A Group
Fig 39. Timer count start/stop timing
(R2H)
Timer 2 underflow signal
Machine cycle
Timer 2 count start timing (R2L = “0216”, R2H = “0216”, W23 = “1”)
Register W21
Mi
Mi + 1
Mi + 2
Mi + 3
0216
0016
0116
0216
0016
0116
0216
(R2L)
Timer 2 count start timing
PWM signal
Timer 2 count value
(reload register)
Timer 2 count source
(XIN input)
(R2H)
Mi
Mi + 1
Mi + 2
Mi + 3
0016
0116
0216
0016
0116
0216
Timer 2 count stop timing
(R2L)
(R2H)
(Note 1)
TW2A instruction execution (W21
1)
TW2A instruction execution (W21
0)
Timer 2 underflow signal
Machine cycle
Register W21
PWM signal
Timer 2 count value
(reload register)
Timer 2 count source
(XIN input)
Timer 2 count stop timing (R2L = “0216”, R2H = “0216”, W23 = “1”)
Notes 1: If the timer count stop timing and the timer underflow timing overlap while the CNTR pin output
is valid (W23=“1”), a hazard may occur in the PWM signal waveform.
2: When timer count is stopped during “H” interval of the PWM signal, timer is stopped after
the end of the “H” output interval.
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