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参数资料
| 型号： | M30623MCV-XXXGP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 16-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP80 |
| 封装： | PLASTIC, QFP-80 |
| 文件页数： | 8/188页 |
| 文件大小： | 3064K |
| 代理商： | M30623MCV-XXXGP |
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104
Mitsubishi microcomputers
M16C / 62T Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Timers’ functions for three-phase motor control
Figure 1.18.5 shows the block diagram for three-phase waveform mode. In three-phase waveform mode,
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the positive-phase waveforms (U phase, V phase, and W phase) and negative waveforms (U phase, V
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phase, and W phase), six waveforms in total, are output from P80,P81, P72, P73, P74, and P75 as active
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on the “L” level. Of the timers used in this mode, timer A4 controls the U phase and U phase, timer A1
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controls the V phase and V phase, and timer A2 controls the W phase and W phase respectively; timer B2
controls the periods of one-shot pulse output from timers A4, A1, and A2.
In outputting a waveform, dead time can be set so as to cause the “L” level of the positive waveform
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output (U phase, V phase, and W phase) not to lap over the “L” level of the negative waveform output (U
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phase, V phase, and W phase).
To set short circuit time, use three 8-bit timers sharing the reload register for setting dead time. A value
from 1 through 255 can be set as the count of the timer for setting dead time. The timer for setting dead
time works as a one-shot timer. If a value is written to the dead timer (034C16), the value is written to the
reload register shared by the three timers for setting dead time.
Any of the timers for setting dead time takes the value of the reload register into its counter, if a start
trigger comes from its corresponding timer, and performs a down count in line with the clock source
selected by the dead time timer count source select bit (bit 2 at 034916). The timer can receive another
trigger again before the workings due to the previous trigger are completed. In this instance, the timer
performs a down count from the reload register’s content after its transfer, provoked by the trigger, to the
timer for setting dead time.
Since the timer for setting dead time works as a one-shot timer, it starts outputting pulses if a trigger
comes; it stops outputting pulses as soon as its content becomes 0016, and waits for the next trigger to
come.
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The positive waveforms (U phase, V phase, and W phase) and the negative waveforms (U phase, V
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phase, and W phase) in three-phase waveform mode are output from respective ports by means of
setting “1” in the output control bit (bit 3 at 034816). Setting “0” in this bit causes the ports to be the state
of set by port direction register. This bit can be set to “0” not only by use of the applicable instruction, but
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by entering a falling edge in the NMI terminal or by resetting. Also, if “1” is set in the positive and negative
phases concurrent L output disable function enable bit (bit 4 at 034816) causes one of the pairs of U
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phase and U phase, V phase and V phase, and W phase and W phase concurrently go to “L”, as a result,
the port become the state of set by port direction register.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| M30623MC-XXXGP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| M30623MEP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| M30623MEP-XXXGP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| M30623MG | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| M30623MGP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
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