m37905 Renesas Electronics Corporation., m37905 Datasheet - Page 220

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

Fig. 10.1.1 Comparison of waveforms in three-phase mode 0 and 1
Three-phase mode 0
: Saw-tooth-wave
Three-phase mode 0
: Triangular wave
Three-phase mode 1
: Triangular wave
modulation
modulation
modulation
Timer A3
interrupt request signal
Timer A3
interrupt request signal
Timer A2
one-shot pulse output
Timer A3
underflow signal
Phase U
Phase U
Timer A2
one-shot pulse output
Phase U
Phase U
Timer A3
interrupt request signal
Timer A2
one-shot pulse output
Phase U
Phase U
Note: This applies when a timer A3 interrupt request occurs at each second timer A3 underflow.
7905 Group User’s Manual Rev.1.0
THREE-PHASE WAVEFORM MODE
Contets of
timer A2
register
By software at each timer A3 interrupt,
• Data is written to timer A2.
By software at each timer A3 interrupt,
• Waveform output polarity is reversed.
• Data is written to timer A2.
By software at each timer A3 interrupt,
• Data is written to timer A2 register.
• Data is written to timer A2
Contets of
timer A2
register
1
1
register.
Contets of
timer A2
register
Waveform output polarity is reversed
by hardware.
Contets of
timer A2
register
10.1 Overview
1
10-3