m37905 Renesas Electronics Corporation., m37905 Datasheet - Page 223

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

10.2 Block description
THREE-PHASE WAVEFORM MODE
10-6
(1) Three-phase output polarity set buffer (bit 3)
(2) Three-phase mode select bit (bit 4)
(3) Dead-time timer trigger select bit (bit 6)
(4) Waveform output control bit (bit 7)
This bit serves as the buffer to set the output polarity of the three-phase waveform and is used in
three-phase mode 1. (Refer to section “10.2.9 Output polarity set toggle flip-flop.”)
This bit is used to select three-phase mode 0 or 1.
This bit is used to select a trigger of the dead-time timer.
The saw-tooth-wave modulation requires that this bit is fixed to “0.”
Setting of this bit to “1” allows the three-phase waveform output from the three-phase waveform output
pins. Clearance of this bit to “0” makes the three-phase waveform output pins floating.
When a falling edge is input to pin P6OUT
7905 Group User’s Manual Rev.1.0
CUT
, this bit becomes “0.” (See Figure 10.2.15.)