M-V850E-IA4 Renesas Electronics America, M-V850E-IA4 Datasheet - Page 448

• Manufacturer Part Number: M-V850E-IA4
• Description: KIT EVAL V850E IA4 UPD70F3186
• Manufacturer: Renesas Electronics America

Specifications of M-V850E-IA4

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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(2) PWM output of 0%/100%
Remark
<1> 0% output is selected by the valley interrupt (without a match with the 16-bit counter).
<2> 0% output is canceled by the crest interrupt (without a match with the 16-bit counter).
<3> 0% output is selected by the crest interrupt (with a match with the 16-bit counter).
<4> 0% output is canceled by the valley interrupt (without a match with the 16-bit counter).
Remark
The V850E/IA3 and V850E/IA4 are capable of 0% wave output and 100% wave output for PWM output.
A low level is continuously output from TOQnTm pin as the 0% wave output. A high level is continuously output
from TOQnTm pin as the 100% wave output.
The 0% wave is output by setting the TQnCCRm register to “M + 1” when the TQnCCR0 register = M.
The 100% wave is output by setting the TQnCCRm register to “0000H”.
Rewriting the TQnCCRm register is enabled while the timer is operating, and 0% wave output or 100% wave
output can be selected at the point of the crest interrupt (INTTQnCC0) and valley interrupt (INTTQnOV).
The valley interrupt forcibly lowers the timer output. This produces the 0% output.
The crest interrupt forcibly raises the timer output. This cancels the 0% output.
The crest interrupt forcibly raises the timer output, but lowering the timer output takes precedence when
the value of the TQnCCRm register matches the value of the 16-bit counter. As a result, the 0% wave is
output.
The valley interrupt forcibly lowers the timer output. This cancels the 0% output.
of timer output
buffer register
Forced timing
V850E/IA3: n = 0, m = 1 to 3
V850E/IA4: n = 0, 1, m = 1 to 3
TQnCCR1
TQnCCR0
pin output
pin output
TOQnT1
TOQnB1
means forced raising and means forced lowering.
register
register
counter
CCR1
16-bit
0000H
Figure 10-9. 0% PWM Output Waveform (With Dead Time)
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CHAPTER 10 MOTOR CONTROL FUNCTION
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<1>
User’s Manual U16543EJ4V0UD
0% output
M + 1
M + 1
M
<2>
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<3>
M + 1
0% output
M + 1
<4>
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