m37905 Renesas Electronics Corporation., m37905 Datasheet - Page 235

• Manufacturer Part Number: m37905
• Description: Mitsubishi 16-bit Single-chip Microcomputer 7700 Family / 7900 Series
• Manufacturer: Renesas Electronics Corporation.

Table 10.3.1 Differences between triangular wave modulation output and saw-tooth-wave modulation
THREE-PHASE WAVEFORM MODE
10.3 Three-phase mode 0
10.3 Three-phase mode 0
Trigger of dead-time timer
Contents of output polarity set
buffer
10-18
10.3.1 Setting for three-phase mode 0
Explanation of the triangular wave modulation output and saw-tooth-wave modulation output in three-phase
mode 0 is described below. Table 10.3.1 lists the differences between the triangular wave modulation
output and the saw-tooth-wave modulation output (in view of software).
Figures 10.3.1 and 10.3.2 show an initial setting example for registers relevant to three-phase mode 0,
Figure 10.3.3 shows a data-updating example in three-phase mode 0.
Note that the initial output level at the three-phase waveform output pin is undefined. Be sure to start the
three-phase waveform output (in other words, the waveform output is enabled.) after the output level at the
three-phase waveform output pin is stabilized.
output (in view of software)
Falling edge of timers A0 through A2
Reversed at each timer A3 interrupt
request occurrence.
Triangular wave modulation output
7905 Group User’s Manual Rev.1.0
Falling and Rising edges of timers A0
through A2
Not reversed.
Saw-tooth-wave modulation output