420
Chapter 10
16-bit Inverter Timer/Counter R
User’s Manual U16580EE3V1UD00
10.10.9 High-accuracy
T-PWM
mode
(1)
Outline of high-accuracy T-PWM mode
The high-accuracy T-PWM mode generates 6-phase PWM using four 16-bit counters (up/down,
±
2 counts, 15 real bits) and 16-bit compare registers (LSB = additional pulse control).
The carrier wave cycle calculated with “TRnCCR0-TRnDTC0-TRnDTC1” is set to the TRnCCR0
register. The duty of the U phase, V phase, and W phase voltage data signal is set with the
TRnCCR1 to TRnCCR3 registers. The dead time is set with the TRnDTC0 and TRnDTC1
registers, and the TRnDTC0 register can be used to set the inverted phase (OFF)
→
normal
phase (ON) dead time, while the TRnDTC1 register can be used to set the normal phase
(OFF)
→
inverted phase (ON) dead time.
The counter operation consists in performing up count with the TRnDTC0 register value as the
minimum value, and upon a match with the maximum value indicated by “TRnCCR0-TRnDTC1”,
performing down count.
The 10-bit counters for dead time generation (TRnDTT1 to TRnDTT3) load the setting values of
the TRnDTC0 and TRnDTC1 registers upon a match between the counter and the TRnCCR1 to
TRnCCR3 registers, and perform down-count.
Upon a match between the 16-bit counter and the TRnCCR1 to TRnCCR3 registers, INTTRnCC1
to INTTRnCC3, which are used as the respective compare match interrupt signals, are output. (In
the 0% output vicinity and 100% output vicinity, no interrupt signal may be output.)
Figure 10-56:
High-Accuracy T-PWM Mode Block Diagram
TRnCNT
(16-bit up/down counter - 2)
TRnCCR3 (W phase output data)
TRnCCR1 (U phase output data)
TRnCCR2 (V phase output data)
TRnDTT1
TRnDTC1
TO1
TO2
TO3
TO4
TO5
TO6
TORn1(U)
TORn2(U)
TORn3(V)
TORn4(V)
TORn5(W)
TORn6(W)
U/D
Sel0
INTTRnOD (valley interrupt)
TRnSBC
(16-bit up/down counter - 2)
U/D
Sel1
TRnCCR0 buffer
0000H
SEL
TRnDTC0
TRnCCR0-TRnDTC1
INTTRnCD0 (peak interrupt)
SEL
TORn0
Load
Load
TRnTOS
TRnDTC0
TRnDTT2
TRnDTT3
Load
Load
TRnDTT4
TRnDTT5
TRnDTT6
Summary of Contents for MuPD70F3187
Page 6: ...6 Preface User s Manual U16580EE3V1UD00 ...
Page 16: ...16 User s Manual U16580EE3V1UD00 ...
Page 28: ...28 User s Manual U16580EE3V1UD00 ...
Page 32: ...32 User s Manual U16580EE3V1UD00 ...
Page 84: ...84 Chapter 2 Pin Functions User s Manual U16580EE3V1UD00 MEMO ...
Page 144: ...144 Chapter 3 CPU Functions User s Manual U16580EE3V1UD00 MEMO ...
Page 312: ...312 Chapter 9 16 Bit Timer Event Counter P User s Manual U16580EE3V1UD00 MEMO ...
Page 534: ...534 Chapter 11 16 bit Timer Event Counter T User s Manual U16580EE3V1UD00 ...
Page 969: ...969 Chapter 20 Port Functions User s Manual U16580EE3V1UD00 MEMO ...
Page 970: ...970 Chapter 20 Port Functions User s Manual U16580EE3V1UD00 ...
Page 976: ...976 Chapter 22 Internal RAM Parity Check Function User s Manual U16580EE3V1UD00 MEMO ...
Page 984: ...984 Chapter 23 On Chip Debug Function OCD User s Manual U16580EE3V1UD00 MEMO ...
Page 1006: ...1006 Chapter 24 Flash Memory User s Manual U16580EE3V1UD00 MEMO ...
Page 1036: ...1036 Chapter 27 Recommended Soldering Conditions User s Manual U16580EE3V1UD00 MEMO ...
Page 1046: ...1046 Appendix A Index User s Manual U16580EE3V1UD00 MEMO ...
Page 1052: ...1052 User s Manual U16580EE3V1UD00 ...
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