m37905 Renesas Electronics Corporation., m37905 Datasheet - Page 250

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

Fig. 10.4.5 Output example at start of three-phase mode 1
Timer A0/A1/A2/A3 count start bit
Timer A3 interrupt request
Carrier wave
Timer A3 underflow signal
Contents of timer A0/A1/A2
register
Contents of three-phase
output polarity set buffer
Contents of timer A0
register
One-shot pulse output of
timer A0/A1/A2
Contents of output polarity
set toggle flip-flop
Reversed signal of pulse
output of dead-time timer
Positive waveform output
Negative waveform output
1
/A1
1
/A2
1
2
2
2
2
This applies under the following conditions:
• Timer A3 interrupt request: every second time
• Timer A3 interrupt validity output: even-numbered underflow in time A3
7905 Group User’s Manual Rev.1.0
f
i
1 : Written by software
2 : This is an internal signal, which cannot be read from the external.
: Count source of timer A0/A1/A2
THREE-PHASE WAVEFORM MODE
Undefined
Undefined
Undefined
1/f
Transferred
i
Rever-
sed
n
n
n
1
1
2
1/f
Rever-
sed
i
Trans-
ferred
1
1
n
1
Rever-
sed
1/f
Transferred
Reversed
n
i
n
n
2
3
4
Rever-
sed
10.4 Three-phase mode 1
1/f
Rever-
sed
Trans-
ferred
i
1
1
n
3
Rever-
sed
1/f
Transferred
Reversed
n
i
n
n
4
5
6
Rever-
sed
1/f
Rever-
sed
Transferred
n
i
5
1
1
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