417
Chapter 10
16-bit Inverter Timer/Counter R
User’s Manual U16580EE3V1UD00
10.10.8 Triangular wave PWM mode
(1)
Outline of triangular wave PWM mode
In the triangular wave PWM mode, similarly to in the PWM mode, when the duty is set to the
TRnCCR1 to TRnCCR5 registers, the cycle is set to the TRnCCR0 register, and TRnCE = 1 is set,
variable duty and cycle type triangular wave PWM output is performed from pins TORn1 to
TORn5. The TORn0 pin is toggle output upon a match with the TRnCCR0 buffer register and upon
counter underflow. Upon a match between the counter and TRnCCR0 register during count
operation, compare match interrupts (INTTRnCC0 to INTTRnCC5) are output, and upon a match
between the counter and TRnCCR1 to TRnCCR5 registers, a compare match interrupt
(INTTRnCC1) is output. Moreover, upon counter underflow, an overflow interrupt (INTTRnOV) is
output.
The TRnCCR0 to TRnCCR5 registers can be rewritten during count operation. Compare register
reload occurs upon a match between the counter value and the TRnCCR0 buffer register.
However, since the next reload timing becomes valid when the TRnCCR1 register is written to,
write the same value to the TRnCCR1 register even when wishing to rewrite only the value of the
TRnCCR0 register. Reloading is not performed if only the TRnCCR0 register is rewritten. The
reload timing is the underflow timing.
In the triangular wave PWM mode, the TRnCCR0 to TRnCCR3 registers have their function fixed
as compare registers, so the capture function cannot be used.
Remark:
In the triangular wave PWM mode, set the TRnCCR0 register to a value of
0
≤
TRnCCR0
≤
FFFEH.
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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