參數(shù)資料
型號: 4571
廠商: Renesas Technology Corp.
英文描述: SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
中文描述: 單芯片4位微機的CMOS
文件頁數(shù): 57/126頁
文件大小: 1627K
代理商: 4571
Rev.1.02
May 25, 2007
Page 36 of 124
REJ03B0179-0102
4571 Group
Fig 36. Timer count start/stop timing
(R3H)
Timer 3 underflow signal
Machine cycle
Timer 3 count start timing (R3L = “0216”, R3H = “0216”, W33 = “1”)
Register W31
Mi
Mi + 1
Mi + 2
Mi + 3
0216
0016
0116
0216
0016
0116
0216
(R3L)
Timer 3 count start timing
PWM signal
Timer 3 count value
(reload register)
Timer 3 count source
(XIN input)
(R3H)
Mi
Mi + 1
Mi + 2
Mi + 3
0016
0116
0216
0016
0116
0216
Timer 3 count stop timing
(R3L)
(R3H)
(Note 1)
TW3A instruction execution (W31
1)
TW3A instruction execution (W31
0)
Timer 3 underflow signal
Machine cycle
Register W31
PWM signal
Timer 3 count value
(reload register)
Timer 3 count source
(XIN input)
Timer 3 count stop timing (R3L = “0216”, R3H = “0216”, W33 = “1”)
Notes 1: If the timer count stop timing and the timer underflow timing overlap while the CNTR1 pin output
is valid (W33=“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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